Dr. Shivkumar is a physician scientist who serves as the inaugural director of the UCLA Cardiac Arrhythmia Center & EP Programs (since its establishment in 2002). He is a graduate of the UCLA STAR Program (class of 2000) and his field of specialization is interventional cardiac electrophysiology. He leads a large group at UCLA (a diverse group of fifteen faculty members, several trainees and sixty staff + allied health professionals) involved in clinical care, teaching, research and biomedical innovation. The team provides state of the art clinical care, has developed several innovative therapies (e.g. epicardial ablation, neuromodulation) for the non-pharmacological management of cardiac arrhythmias and other cardiac interventions. Dr. Shivkumar also serves as the director and chief of the UCLA Cardiovascular and Interventional Programs for the Health System. Dr. Shivkumar’s research work relates to mechanisms of cardiac arrhythmias in humans especially the role of the autonomic nervous system and his research work transcends the perspective of a single organ and has implications for neurovisceral sciences in general. The UCLA Neurocardiology Research Program of Excellence was established by him as the specialized research arm of the Arrhythmia Center in 2014. Dr. Shivkumar and his colleagues are actively involved in human mechanistic studies, development of new intellectual property and medical technology for cardiovascular therapeutics. His IP has been incorporated into medical devices that are now FDA approved and in clinical use. He serves on the editorial board for several journals in cardiology and cardiac electrophysiology, and is a peer reviewer for several basic science and clinical journals. He also serves as a peer reviewer for the NIH in evaluating cardiac arrhythmia & neuroscience research. His research has been supported by grants from the American Heart Association, the Doris Duke Foundation, private donors and from the NIH (continuously since 2006). Currently Dr. Shivkumar oversees a 15-university NIH consortium investigating neural control of the heart. Dr. Shivkumar has mentored several PhD candidates and has received several teaching awards. He has been appointed to serve on the board of examiners for Clinical Cardiac Electrophysiology by the ABIM (American Board of Internal Medicine). He has been elected to the membership of the American Society of Clinical Investigation (ASCI) and serves as the institutional representative of UCLA for the ASCI. He was elected as an honorary Fellow of the Royal College of Physicians (London) in 2016 & President of the ISAN (International Society of Autonomic Neuroscience) in 2019. He was named as the Editor in Chief of the Journal of the American College of Cardiology: Clinical Electrophysiology in 2020. He was elected as a member of the Association of American Physicians (AAP) in 2022 and as a member of the Association of University Cardiologists in 2022.

Education and Training

UCLA/Cedars Sinai Medical Center6/2000Clinical Cardiac Electrophysiolgy Fellow
UCLAPhD2000Physiology
UCLA6/1999Cardiology Fellow
Henry Ford Hospital6/1995Chief Resident, Internal Medicine
Henry Ford Hospital6/1994Resident, Internal Medicine
Henry Ford Hospital6/1992Intern, Internal Medicine
University of Madras, Kilpauk Medical CollegeMD1991Medical School

Publications

  1. Thompson N, Ravagli E, Mastitskaya S, Challita R, Hadaya J, Iacoviello F, Shah Idil A, Shearing PR, Ajijola OA, Ardell JL, Shivkumar K, Holder D, Aristovich K. Anatomical and functional organization of cardiac fibers in the porcine cervical vagus nerve allows spatially selective efferent neuromodulation.. bioRxiv : the preprint server for biology, 2024.
  2. Paterson DJ, Shivkumar K, Bioelectronics for Neurocardiology Consortium . Bioelectronics for neurocardiology: diagnosis and therapeutics.. European heart journal, 2023.
  3. Mori S, Bradfield JS, Fukuzawa K, Shivkumar K. Comprehensive Anatomy of the Summit of the Left Ventricle.. JACC. Clinical electrophysiology, 2023.
  4. Esrailian DL, Mori S, Shivkumar K. Understanding Cardiac Anatomy and Imaging to Improve Safety of Procedures: The Sinus Node Artery.. JACC. Case reports, 2023.
  5. Chen J, Bendowski KT, Bizanti A, Zhang Y, Ma J, Hoover DB, Gozal D, Shivkumar K, Cheng ZJ. Distribution and morphology of calcitonin gene-related peptide (CGRP) innervation in flat mounts of whole rat atria and ventricles.. Autonomic neuroscience : basic & clinical, 2023.
  6. Sato T, Moussa ID, Hanna P, Shivkumar K, Mori S. Intermediate Accessory Papillary Muscle: An Anatomic Variant of Interest for Transcatheter Edge-to-Edge Mitral Valve Repair.. Circulation. Cardiovascular imaging, 2023.
  7. Mori S, Beyer RS, Bernardes de Souza B, Sorg JM, Hoover DB, Sacks HS, Fishbein MC, Chang G, Peacock WJ, St John MA, Law J, Symonds ME, Ajijola OA, Shivkumar K, Srikanthan P. Sympathetic innervation of the supraclavicular brown adipose tissue: A detailed anatomical study.. PloS one, 2023.
  8. Chung WH, Hayase J, Davies MJ, Do DH, Sorg JM, Ajijola OA, Buch EF, Boyle NG, Shivkumar K, Bradfield JS. Cryothermal energy demonstrates shorter ablation time and lower complication rates compared with radiofrequency in surgical hybrid ablation for recurrent ventricular tachycardia.. Heart rhythm, 2023.
  9. Sato T, Adlaka K, Moussa ID, Hanna P, Do DH, Fishbein MC, Shivkumar K, Mori S. Understanding Cardiac Anatomy and Imaging to Improve Safety of Procedures: The Right Ventricle.. JACC. Cardiovascular imaging, 2023.
  10. Sato T, Moussa ID, Hanna P, Shivkumar K, Mori S. Insights Into Interaction Between Clip Device and the Mitral Valve Apparatus in the Human Heart.. JACC. Case reports, 2023.
  11. Moore JP, Shannon KM, Khairy P, Waldmann V, Bessière F, Burrows A, Su J, Shivkumar K. Sinus rhythm QRS morphology reflects right ventricular activation and anatomical ventricular tachycardia isthmus conduction in repaired tetralogy of Fallot.. Heart rhythm, 2023.
  12. Vijayaraman P, Chelu MG, Curila K, Dandamudi G, Herweg B, Mori S, Jastrzebski M, Sharma PS, Shivkumar K, Tung R, Upadhyay G, Vernooy K, Welter-Frost A, Whinnett Z, Zanon F, Ellenbogen KA. Cardiac Conduction System Pacing: A Comprehensive Update.. JACC. Clinical electrophysiology, 2023.
  13. Chung WH, Masuyama K, Challita R, Hayase J, Mori S, Cha S, Bradfield JS, Ardell JL, Shivkumar K, Ajijola OA. Ischemia-induced ventricular proarrhythmia and cardiovascular autonomic dysreflexia after cardioneuroablation.. Heart rhythm, 2023.
  14. Moore JP, Aboulhosn JA, Zeppenfeld K, Waldmann V, Bessière F, Blom NA, Combes N, Fish FA, McLeod CJ, Kanter RJ, Tan W, Patel N, von Alvensleben JC, Kamp A, Lloyd MS, Anderson CC, Tan RB, Mariucci E, Levi DS, Salem M, Shivkumar K, Khairy P. Rationale and Design of the Multicenter Catheter Ablation of Ventricular Tachycardia Before Transcatheter Pulmonary Valve Replacement in Repaired Tetralogy of Fallot Study.. The American journal of cardiology, 2023.
  15. Huang DT, Gosev I, Wood KL, Vidula H, Stevenson W, Marchlinski F, Supple G, Zalawadiya SK, Weiss JP, Tung R, Tzou WS, Moss JD, Kancharla K, Chaudhry SP, Patel PJ, Khan AM, Schuger C, Rozen G, Kiernan MS, Couper GS, Leacche M, Molina EJ, Shah AD, Lloyd M, Sroubek J, Soltesz E, Shivkumar K, White C, Tankut S, Johnson BA, McNitt S, Kutyifa V, Zareba W, Goldenberg I. Design and characteristics of the prophylactic intra-operative ventricular arrhythmia ablation in high-risk LVAD candidates (PIVATAL) trial.. Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc, 2023.
  16. Sato T, Hanna P, Ajijola OA, Shivkumar K, Mori S. Photogrammetry of Perfusion-Fixed Heart: Innovative Approach to Study 3-Dimensional Cardiac Anatomy.. JACC. Case reports, 2023.
  17. Sato T, Hanna P, Ajijola OA, Shivkumar K, Mori S. Photogrammetry of Perfusion-Fixed Heart: Innovative Approach to Study 3-Dimensional Cardiac Anatomy.. JACC. Clinical electrophysiology, 2023.
  18. Hayase J, Fishbein G, Rerkpichaisuth V, Chung WH, Ajijola O, Shivkumar K, Bradfield JS. Linear epicardial cryoablation effects in a porcine model: Lesion characteristics and vascular risk.. Journal of cardiovascular electrophysiology, 2023.
  19. Hadaya J, Dajani AH, Cha S, Hanna P, Challita R, Hoover DB, Ajijola OA, Shivkumar K, Ardell JL. Vagal Nerve Stimulation Reduces Ventricular Arrhythmias and Mitigates Adverse Neural Cardiac Remodeling Post-Myocardial Infarction.. JACC. Basic to translational science, 2023.
  20. Do DH, Bailey KL, Beyer R, Neubuerger S, Bradfield J, Shivkumar K, Nsair A, Boyle NG. Outcomes in orthotopic heart transplantation following pacemaker implantation.. Pacing and clinical electrophysiology : PACE, 2023.
  21. Mori S, Aksoy O, Do DH, Dave RH, Shivkumar K. Transcatheter Aortic Valve Replacement Guided by Preprocedural Simulation of Fluoroscopic Location of the Membranous Septum.. JACC. Case reports, 2023.
  22. Zhang Y, Bizanti A, Harden SW, Chen J, Bendowski K, Hoover DB, Gozal D, Shivkumar K, Heal M, Tappan S, Cheng ZJ. Topographical mapping of catecholaminergic axon innervation in the flat-mounts of the mouse atria: a quantitative analysis.. Scientific reports, 2023.
  23. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. JACC. Asia, 2023.
  24. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. JACC. Basic to translational science, 2023.
  25. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. JACC. CardioOncology, 2023.
  26. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. JACC. Cardiovascular imaging, 2023.
  27. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. JACC. Cardiovascular interventions, 2023.
  28. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. JACC. Case reports, 2023.
  29. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. JACC. Clinical electrophysiology, 2023.
  30. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. JACC. Heart failure, 2023.
  31. Fuster V, Bozkurt B, Chandrashekhar Y, Grapsa J, Ky B, Mann DL, Moliterno DJ, Shivkumar K, Silversides CK, Turco JV, Wang J. JACC Journals' Pathway Forward With AI Tools: The Future Is Now.. Journal of the American College of Cardiology, 2023.
  32. Do DH, O'Meara K, Lee J, Meyer S, Hanna P, Mori S, Fishbein MC, Boyle NG, Elizari MV, Bradfield JS, Shivkumar K. Ventricular Parasystole in Cardiomyopathy Patients: A Link Between His-Purkinje System Damage and Ventricular Fibrillation.. JACC. Clinical electrophysiology, 2023.
  33. Mori S, Moussa ID, Hanna P, Shivkumar K. Veiled Anatomy of the Tricuspid Valve Perimeter: What the Interventionalist Must Know…But Cannot See!. JACC. Cardiovascular interventions, 2023.
  34. Mori S, Hanna P, Bhatt RV, Shivkumar K. The Atrioventricular Bundle: A Sesquicentennial Tribute to Professor Sunao Tawara.. JACC. Clinical electrophysiology, 2023.
  35. Rajendran PS, Hadaya J, Khalsa SS, Yu C, Chang R, Shivkumar K. The vagus nerve in cardiovascular physiology and pathophysiology: From evolutionary insights to clinical medicine.. Seminars in cell & developmental biology, 2023.
  36. Bizanti A, Zhang Y, Harden SW, Chen J, Hoover DB, Gozal D, Shivkumar K, Cheng ZJ. Catecholaminergic axon innervation and morphology in flat-mounts of atria and ventricles of mice.. The Journal of comparative neurology, 2023.
  37. Shivkumar K, Qu Z, Harvey R. Cardiac fibrosis in three dimensions - mechanistic insights into arrhythmic risk due to hypertrophy.. The Journal of physiology, 2022.
  38. Mori S, Hayase J, Sridharan A, Fukuzawa K, Shivkumar K, Bradfield JS. Revisiting the Anatomy of the Left Ventricular Summit.. Cardiac electrophysiology clinics, 2022.
  39. Chung WH, Hayase J, Do DH, Dixit N, Ajijola O, Buch E, Boyle N, Shivkumar K, Bradfield JS. Clinical predictors and implications of cardiac inflammation detected on positron emission tomography (PET) in patients referred for premature ventricular complex (PVC) ablation.. Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2022.
  40. Qian K, Tol MJ, Wu J, Uchiyama LF, Xiao X, Cui L, Bedard AH, Weston TA, Rajendran PS, Vergnes L, Shimanaka Y, Yin Y, Jami-Alahmadi Y, Cohn W, Bajar BT, Lin CH, Jin B, DeNardo LA, Black DL, Whitelegge JP, Wohlschlegel JA, Reue K, Shivkumar K, Chen FJ, Young SG, Li P, Tontonoz P. CLSTN3β enforces adipocyte multilocularity to facilitate lipid utilization.. Nature, 2022.
  41. Kharbanda RK, Moore JP, Lloyd MS, Galotti R, Bogers AJJC, Taverne YJHJ, Madhavan M, McLeod CJ, Dubin AM, Mah DY, Chang PM, Kamp AN, Nielsen JC, Aydin A, Tanel RE, Shah MJ, Pilcher T, Evertz R, Khairy P, Tan RB, Czosek RJ, Shivkumar K, de Groot NMS. Cardiac Resynchronization Therapy for Adult Patients With a Failing Systemic Right Ventricle: A Multicenter Study.. Journal of the American Heart Association, 2022.
  42. Yao J, Ma F, Zhang L, Zhu C, Jumabay M, Yao Z, Wang L, Cai X, Zhang D, Qiao X, Shivkumar K, Pellegrini M, Yao Y, Wu X, Boström KI. Single-Cell RNA-Seq Identifies Dynamic Cardiac Transition Program from ADCs Induced by Leukemia Inhibitory Factor.. Stem cells (Dayton, Ohio), 2022.
  43. Temma T, Lux RL, Yoshie K, Hayase J, Bradfield JS, Shivkumar K, Ajijola OA. The derivative of tissue activation as a marker of arrhythmogenic myocardium.. Heart rhythm, 2022.
  44. Sridharan A, Bradfield JS, Shivkumar K, Ajijola OA. Autonomic nervous system and arrhythmias in structural heart disease.. Autonomic neuroscience : basic & clinical, 2022.
  45. Anwar U, Ajijola OA, Shivkumar K, Markovic D. Towards a Leadless Wirelessly Controlled Intravenous Cardiac Pacemaker.. IEEE transactions on bio-medical engineering, 2022.
  46. Zeppenfeld K, Wijnmaalen AP, Ebert M, Baldinger SH, Berruezo A, Catto V, Vaseghi M, Arya A, Kumar S, de Riva M, Deneke T, Gaspar T, Soejima K, van Rein N, Tedrow UB, Piorkowski C, Shivkumar K, Carbucicchio C, Hindricks G, Stevenson WG. Clinical Outcomes in Patients With Dilated Cardiomyopathy and Ventricular Tachycardia.. Journal of the American College of Cardiology, 2022.
  47. Mayuga KA, Fedorowski A, Ricci F, Gopinathannair R, Dukes JW, Gibbons C, Hanna P, Sorajja D, Chung M, Benditt D, Sheldon R, Ayache MB, AbouAssi H, Shivkumar K, Grubb BP, Hamdan MH, Stavrakis S, Singh T, Goldberger JJ, Muldowney JAS, Belham M, Kem DC, Akin C, Bruce BK, Zahka NE, Fu Q, Van Iterson EH, Raj SR, Fouad-Tarazi F, Goldstein DS, Stewart J, Olshansky B. Sinus Tachycardia: a Multidisciplinary Expert Focused Review.. Circulation. Arrhythmia and electrophysiology, 2022.
  48. Tompkins JD, Buckley U, Salavatian S, Shivkumar K, Ardell JL. Vagally-mediated heart block after myocardial infarction associated with plasticity of epicardial neurons controlling the atrioventricular node.. Frontiers in synaptic neuroscience, 2022.
  49. Hayase J, Do DH, Liang JJ, Kim M, Lee B, Ajijola O, Buch E, Boyle N, Shivkumar K, Bradfield JS. Detection of inflammation using cardiac positron emission tomography for evaluation of ventricular arrhythmias: An institutional experience.. Heart rhythm, 2022.
  50. Kim WJ, Samarage HM, Zarrin D, Goel K, Chan C, Qi X, Wang A, Shivkumar K, Ardell J, Colby GP. Superior cervical ganglion stimulation results in potent cerebral vasoconstriction in swine.. Journal of vascular and interventional neurology, 2022.
  51. Kim WJ, Dacey M, Samarage HM, Zarrin D, Goel K, Chan C, Qi X, Wang AC, Shivkumar K, Ardell J, Colby GP. Sympathetic nervous system hyperactivity results in potent cerebral hypoperfusion in swine.. Autonomic neuroscience : basic & clinical, 2022.
  52. Shivkumar K. JACC: Clinical Electrophysiology 2021 Young Author Award Winner.. JACC. Clinical electrophysiology, 2022.
  53. Shivkumar K. JACC: Clinical Electrophysiology 2021 Young Author Award Winner.. JACC. Clinical electrophysiology, 2022.
  54. Aras K, Gams A, Faye NR, Brennan J, Goldrick K, Li J, Zhong Y, Chiang CH, Smith EH, Poston MD, Chivers J, Hanna P, Mori S, Ajijola OA, Shivkumar K, Hoover DB, Viventi J, Rogers JA, Bernus O, Efimov IR. Electrophysiology and Arrhythmogenesis in the Human Right Ventricular Outflow Tract.. Circulation. Arrhythmia and electrophysiology, 2022.
  55. Shivkumar K, Zipes DP. Cardiac Sympathectomy and its Enduring Value for the Management of Long QT Syndrome.. JACC. Clinical electrophysiology, 2022.
  56. Hayase J, Chin R, Cao M, Hu P, Shivkumar K, Bradfield JS. Non-invasive Stereotactic Body Radiation Therapy for Refractory Ventricular Arrhythmias: Venturing into the Unknown.. The Journal of innovations in cardiac rhythm management, 2022.
  57. Zhu C, Rajendran PS, Hanna P, Efimov IR, Salama G, Fowlkes CC, Shivkumar K. High-resolution structure-function mapping of intact hearts reveals altered sympathetic control of infarct border zones.. JCI insight, 2022.
  58. Dacey M, Salahudeen O, Swid MA, Carlson C, Shivkumar K, Ardell JL. Structural and function organization of intrathoracic extracardiac autonomic projections to the porcine heart: Implications for targeted neuromodulation therapy.. Heart rhythm, 2022.
  59. Mehra R, Tjurmina OA, Ajijola OA, Arora R, Bolser DC, Chapleau MW, Chen PS, Clancy CE, Delisle BP, Gold MR, Goldberger JJ, Goldstein DS, Habecker BA, Handoko ML, Harvey R, Hummel JP, Hund T, Meyer C, Redline S, Ripplinger CM, Simon MA, Somers VK, Stavrakis S, Taylor-Clark T, Undem BJ, Verrier RL, Zucker IH, Sopko G, Shivkumar K. Research Opportunities in Autonomic Neural Mechanisms of Cardiopulmonary Regulation: A Report From the National Heart, Lung, and Blood Institute and the National Institutes of Health Office of the Director Workshop.. JACC. Basic to translational science, 2022.
  60. Hadaya J, Buckley U, Gurel NZ, Chan CA, Swid MA, Bhadra N, Vrabec TL, Hoang JD, Smith C, Shivkumar K, Ardell JL. Scalable and reversible axonal neuromodulation of the sympathetic chain for cardiac control.. American journal of physiology. Heart and circulatory physiology, 2021.
  61. Mori S, Bradfield JS, Peacock WJ, Anderson RH, Shivkumar K. Living Anatomy of the Pericardial Space: A Guide for Imaging and Interventions.. JACC. Clinical electrophysiology, 2021.
  62. Hayase J, Chin R, Kwon M, Cao M, Hu P, Ajijola O, Boyle N, Shivkumar K, Bradfield JS. Surgical ablation after stereotactic body radiation therapy for ventricular arrhythmias.. HeartRhythm case reports, 2021.
  63. Delisle BP, George AL, Nerbonne JM, Bass JT, Ripplinger CM, Jain MK, Hermanstyne TO, Young ME, Kannankeril PJ, Duffy JF, Goldhaber JI, Hall MH, Somers VK, Smolensky MH, Garnett CE, Anafi RC, Scheer FAJL, Shivkumar K, Shea SA, Balijepalli RC. Understanding Circadian Mechanisms of Sudden Cardiac Death: A Report From the National Heart, Lung, and Blood Institute Workshop, Part 1: Basic and Translational Aspects.. Circulation. Arrhythmia and electrophysiology, 2021.
  64. Delisle BP, George AL, Nerbonne JM, Bass JT, Ripplinger CM, Jain MK, Hermanstyne TO, Young ME, Kannankeril PJ, Duffy JF, Goldhaber JI, Hall MH, Somers VK, Smolensky MH, Garnett CE, Anafi RC, Scheer FAJL, Shivkumar K, Shea SA, Balijepalli RC. Understanding Circadian Mechanisms of Sudden Cardiac Death: A Report From the National Heart, Lung, and Blood Institute Workshop, Part 2: Population and Clinical Considerations.. Circulation. Arrhythmia and electrophysiology, 2021.
  65. Boukens BJD, Dacey M, Meijborg VMF, Janse MJ, Hadaya J, Hanna P, Swid MA, Opthof T, Ardell JL, Shivkumar K, Coronel R. Mechanism of ventricular premature beats elicited by left stellate ganglion stimulation during acute ischaemia of the anterior left ventricle.. Cardiovascular research, 2021.
  66. Moss A, Robbins S, Achanta S, Kuttippurathu L, Turick S, Nieves S, Hanna P, Smith EH, Hoover DB, Chen J, Cheng ZJ, Ardell JL, Shivkumar K, Schwaber JS, Vadigepalli R. A single cell transcriptomics map of paracrine networks in the intrinsic cardiac nervous system.. iScience, 2021.
  67. Mori S, Hanna P, Dacey MJ, Temma T, Hadaya J, Zhu C, Chang G, Peacock WJ, Fishbein MC, Shivkumar K. Comprehensive Anatomy of the Pericardial Space and the Cardiac Hilum: Anatomical Dissections With Intact Pericardium.. JACC. Cardiovascular imaging, 2021.
  68. Hanna P, Buch E, Stavrakis S, Meyer C, Tompkins JD, Ardell JL, Shivkumar K. Neuroscientific therapies for atrial fibrillation.. Cardiovascular research, 2021.
  69. Mori S, Shivkumar K. Real three-dimensional cardiac imaging using leading-edge holographic display.. Clinical anatomy (New York, N.Y.), 2021.
  70. Civillico EF, Shivkumar K. Visualizing the "internet of the body": Winners of the NIH SPARC Art Contest.. Autonomic neuroscience : basic & clinical, 2021.
  71. Mehra R, Shivkumar K. Clarifying upper airway obstruction-induced ventricular arrhythmic propensity in a model of drug-induced long QT interval and β-adrenergic blockade.. Heart rhythm, 2021.
  72. Shivkumar K. JACC: Clinical Electrophysiology 2020 Young Author Award Winner.. JACC. Clinical electrophysiology, 2021.
  73. Shivkumar K. JACC: Clinical Electrophysiology 2020 Young Author Award Winner.. JACC. Clinical electrophysiology, 2021.
  74. Khakpour H, Mori S, Bradfield JS, Shivkumar K. How to Use Intracardiac Echocardiography to Recognize Normal Cardiac Anatomy.. Cardiac electrophysiology clinics, 2021.
  75. Mori S, Shivkumar K. Stereoscopic three-dimensional anatomy of the heart: another legacy of Dr. Wallace A. McAlpine.. Anatomical science international, 2021.
  76. Hanna P, Dacey MJ, Brennan J, Moss A, Robbins S, Achanta S, Biscola NP, Swid MA, Rajendran PS, Mori S, Hadaya JE, Smith EH, Peirce SG, Chen J, Havton LA, Cheng ZJ, Vadigepalli R, Schwaber J, Lux RL, Efimov I, Tompkins JD, Hoover DB, Ardell JL, Shivkumar K. Innervation and Neuronal Control of the Mammalian Sinoatrial Node a Comprehensive Atlas.. Circulation research, 2021.
  77. Khalsa SS, Clausen AN, Shahabi L, Sorg J, Gonzalez SE, Naliboff B, Shivkumar K, Ajijola OA. Cardiac sympathetic denervation and mental health.. Autonomic neuroscience : basic & clinical, 2021.
  78. Fontaine AK, Futia GL, Rajendran PS, Littich SF, Mizoguchi N, Shivkumar K, Ardell JL, Restrepo D, Caldwell JH, Gibson EA, Weir RFF. Optical vagus nerve modulation of heart and respiration via heart-injected retrograde AAV.. Scientific reports, 2021.
  79. Aguilar M, Tedrow UB, Tzou WS, Tung R, Frankel DS, Santangeli P, Vaseghi M, Bunch TJ, Di Biase L, Tholakanahalli VN, Lakkireddy D, Dickfeld T, Weiss JP, Mathuria N, Vergara P, Nakahara S, Bradfield JS, Burkhardt JD, Stevenson WG, Callans DJ, Della Bella P, Natale A, Shivkumar K, Marchlinski FE, Sauer WH. Catheter ablation of ventricular tachycardia in patients with prior cardiac surgery: An analysis from the International VT Ablation Center Collaborative Group.. Journal of cardiovascular electrophysiology, 2021.
  80. Do DH, Khakpour H, Krokhaleva Y, Mori S, Bradfield J, Boyle NG, Shivkumar K. Massive Air Embolism During Atrial Fibrillation Ablation: Averting Disaster in a Time of Crisis.. JACC. Case reports, 2021.
  81. Dusi V, Gornbein J, Do DH, Sorg JM, Khakpour H, Krokhaleva Y, Ajijola OA, Macias C, Bradfield JS, Buch E, Fujimura OA, Boyle NG, Yanagawa J, Lee JM, Shivkumar K, Vaseghi M. Arrhythmic Risk Profile and Outcomes of Patients Undergoing Cardiac Sympathetic Denervation for Recurrent Monomorphic Ventricular Tachycardia After Ablation.. Journal of the American Heart Association, 2021.
  82. Elliott IA, DeJesus M, Dobaria V, Vaseghi M, Ajijola OA, Shivkumar K, Hoftman NN, Benharash P, Lee JM, Yanagawa J. Minimally Invasive Bilateral Stellate Ganglionectomy for Refractory Ventricular Tachycardia.. JACC. Clinical electrophysiology, 2021.
  83. Elliott IA, DeJesus M, Dobaria V, Vaseghi M, Ajijola OA, Shivkumar K, Hoftman NN, Benharash P, Lee JM, Yanagawa J. Minimally Invasive Bilateral Stellate Ganglionectomy for Refractory Ventricular Tachycardia.. The Annals of thoracic surgery, 2021.
  84. Khakpour H, Hayase JH, Bradfield JS, Buch E, Shivkumar K. Atrial tachycardia arising from the distal left atrial appendage requiring high-power endocardial and epicardial ablation.. HeartRhythm case reports, 2020.
  85. Do DH, Meyer S, Bradfield J, Shivkumar K, Boyle NG, Khakpour H. Masked premature ventricular contractions and intradevice interaction causing ventricular fibrillation.. HeartRhythm case reports, 2020.
  86. Siontis KC, Kim HM, Vergara P, Peretto G, Do DH, de Riva M, Lam A, Qian P, Yokokawa M, Jongnarangsin K, Latchamsetty R, Jais P, Sacher F, Tedrow U, Shivkumar K, Zeppenfeld K, Della Bella P, Stevenson WG, Morady F, Bogun FM. Arrhythmia exacerbation after post-infarction ventricular tachycardia ablation: prevalence and prognostic significance.. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2020.
  87. Kluge N, Dacey M, Hadaya J, Shivkumar K, Chan SA, Ardell JL, Smith C. Rapid measurement of cardiac neuropeptide dynamics by capacitive immunoprobe in the porcine heart.. American journal of physiology. Heart and circulatory physiology, 2020.
  88. Robinson FA, Mihealsick RP, Wagener BM, Hanna P, Poston MD, Efimov IR, Shivkumar K, Hoover DB. Role of angiotensin-converting enzyme 2 and pericytes in cardiac complications of COVID-19 infection.. American journal of physiology. Heart and circulatory physiology, 2020.
  89. Shivkumar K, Do DH. Catheter Ablation of Ventricular Tachycardia: First, Treat the Underlying Disease.. Journal of the American College of Cardiology, 2020.
  90. Shivkumar K. The U.S. National Institutes of Health and the Universal Language of Humanitarianism.. JACC. Clinical electrophysiology, 2020.
  91. Santangeli P, Hyman MC, Muser D, Callans DJ, Shivkumar K, Marchlinski FE. Outcomes of Percutaneous Trans-Right Atrial Access to the Left Ventricle for Catheter Ablation of Ventricular Tachycardia in Patients With Mechanical Aortic and Mitral Valves.. JAMA cardiology, 2020.
  92. Moore JP, Gallotti RG, Shannon KM, Bos JM, Sadeghi E, Strasburger JF, Wakai RT, Horigome H, Clur SA, Hill AC, Shah MJ, Behere S, Sarquella-Brugada G, Czosek R, Etheridge SP, Fischbach P, Kannankeril PJ, Motonaga K, Landstrom AP, Williams M, Patel A, Dagradi F, Tan RB, Stephenson E, Krishna MR, Miyake CY, Lee ME, Sanatani S, Balaji S, Young ML, Siddiqui S, Schwartz PJ, Shivkumar K, Ackerman MJ. Genotype Predicts Outcomes in Fetuses and Neonates With Severe Congenital Long QT Syndrome.. JACC. Clinical electrophysiology, 2020.
  93. Chin R, Hayase J, Hu P, Cao M, Deng J, Ajijola O, Do D, Vaseghi M, Buch E, Khakpour H, Fujimura O, Krokhaleva Y, Macias C, Sorg J, Gima J, Pavez G, Boyle NG, Steinberg M, Shivkumar K, Bradfield JS. Non-invasive stereotactic body radiation therapy for refractory ventricular arrhythmias: an institutional experience.. Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2020.
  94. Saadeh K, Shivkumar K, Jeevaratnam K. Targeting the β-adrenergic receptor in the clinical management of congenital long QT syndrome.. Annals of the New York Academy of Sciences, 2020.
  95. Shivkumar K. Journal of the American College of Cardiology: Clinical Electrophysiology: The Next Phase of the Voyage.. JACC. Clinical electrophysiology, 2020.
  96. Hayase J, Mori S, Shivkumar K, Bradfield JS. Anatomy of the Pericardial Space.. Cardiac electrophysiology clinics, 2020.
  97. Bradfield JS, Shivkumar K. Epicardial Interventions in Electrophysiology: Transformation to an Established Approach.. Cardiac electrophysiology clinics, 2020.
  98. Hayase J, Dusi V, Do D, Ajijola OA, Vaseghi M, Lee JM, Yanagawa J, Hoftman N, Revels S, Buch EF, Khakpour H, Fujimura O, Krokhaleva Y, Macias C, Sorg J, Gima J, Pavez G, Boyle NG, Shivkumar K, Bradfield JS. Recurrent ventricular tachycardia after cardiac sympathetic denervation: Prolonged cycle length with improved hemodynamic tolerance and ablation outcomes.. Journal of cardiovascular electrophysiology, 2020.
  99. Kalla M, Hao G, Tapoulal N, Tomek J, Liu K, Woodward L, ‘Oxford Acute Myocardial Infarction (OxAMI) Study’, Dall'Armellina E, Banning AP, Choudhury RP, Neubauer S, Kharbanda RK, Channon KM, Ajijola OA, Shivkumar K, Paterson DJ, Herring N. The cardiac sympathetic co-transmitter neuropeptide Y is pro-arrhythmic following ST-elevation myocardial infarction despite beta-blockade.. European heart journal, 2020.
  100. Moore JP, Shivkumar K. Ebstein's anomaly: Structural insights for the interventional electrophysiologist.. Heart rhythm, 2020.
  101. Do DH, Yang JJ, Kuo A, Bradfield JS, Hu X, Shivkumar K, Boyle NG. Electrocardiographic right ventricular strain precedes hypoxic pulseless electrical activity cardiac arrests: Looking beyond pulmonary embolism.. Resuscitation, 2020.
  102. Dusi V, Shahabi L, Lapidus RC, Sorg JM, Naliboff BD, Shivkumar K, Khalsa SS, Ajijola OA. Cardiovascular autonomic reflex function after bilateral cardiac sympathetic denervation for ventricular arrhythmias.. Heart rhythm, 2020.
  103. Hanna P, Zhu C, Shivkumar K, Buch E. Cryoballoon pulmonary vein isolation: Effects on neural control of the heart.. International journal of cardiology, 2020.
  104. Bradfield JS, Shivkumar K. Avoiding the 'cart before the horse': the importance of continued basic and translational studies of renal denervation.. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2020.
  105. Chan SA, Vaseghi M, Kluge N, Shivkumar K, Ardell JL, Smith C. Fast in vivo detection of myocardial norepinephrine levels in the beating porcine heart.. American journal of physiology. Heart and circulatory physiology, 2020.
  106. Ajijola OA, Chatterjee NA, Gonzales MJ, Gornbein J, Liu K, Li D, Paterson DJ, Shivkumar K, Singh JP, Herring N. Coronary Sinus Neuropeptide Y Levels and Adverse Outcomes in Patients With Stable Chronic Heart Failure.. JAMA cardiology, 2020.
  107. Shivkumar K, Boyle NG. Giovanni Maria Lancisi's description of commotio cordis.. Heart rhythm, 2020.
  108. Mori S, Shivkumar K. Three-dimensional imaging of the pericardial space.. HeartRhythm case reports, 2020.
  109. Meijborg VMF, Boukens BJD, Janse MJ, Salavatian S, Dacey MJ, Yoshie K, Opthof T, Swid MA, Hoang JD, Hanna P, Ardell J, Shivkumar K, Coronel R. Stellate ganglion stimulation causes spatiotemporal changes in ventricular repolarization in pig.. Heart rhythm, 2020.
  110. Dusi V, Sorg JM, Gornbein J, Gima J, Yanagawa J, Lee JM, Vecerek N, Vaseghi M, Bradfield JS, De Ferrari GM, Shivkumar K, Ajijola OA. Prognostic impact of atrial rhythm and dimension in patients with structural heart disease undergoing cardiac sympathetic denervation for ventricular arrhythmias.. Heart rhythm, 2019.
  111. Ardell JL, Foreman RD, Armour JA, Shivkumar K. Cardiac sympathectomy and spinal cord stimulation attenuate reflex-mediated norepinephrine release during ischemia preventing ventricular fibrillation.. JCI insight, 2019.
  112. Li X, Fan X, Li S, Sun W, Shivkumar K, Zhao S, Lu M, Yao Y. A Novel Risk Stratification Score for Sudden Cardiac Death Prediction in Middle-Aged, Nonischemic Dilated Cardiomyopathy Patients: The ESTIMATED Score.. The Canadian journal of cardiology, 2019.
  113. Bradfield JS, Hayase J, Liu K, Moriarty J, Kee ST, Do D, Ajijola OA, Vaseghi M, Gima J, Sorg J, Cote S, Pavez G, Buch E, Khakpour H, Krokhaleva Y, Macias C, Fujimura O, Boyle NG, Shivkumar K. Renal denervation as adjunctive therapy to cardiac sympathetic denervation for ablation refractory ventricular tachycardia.. Heart rhythm, 2019.
  114. Zhu C, Hanna P, Rajendran PS, Shivkumar K. Neuromodulation for Ventricular Tachycardia and Atrial Fibrillation: A Clinical Scenario-Based Review.. JACC. Clinical electrophysiology, 2019.
  115. Diamantakos E, Harvey R, Shivkumar K, Bradfield JS. Structural Interventions and Potential Unforeseen Limits on Access to Ventricular Tachycardia Substrates.. JACC. Clinical electrophysiology, 2019.
  116. Challis RC, Kumar SR, Chan KY, Challis C, Beadle K, Jang MJ, Kim HM, Rajendran PS, Tompkins JD, Shivkumar K, Deverman BE, Gradinaru V. Publisher Correction: Systemic AAV vectors for widespread and targeted gene delivery in rodents.. Nature protocols, 2019.
  117. Shenthar J, Singh B, Banavalikar B, Chakali SS, Delhaas T, Shivkumar K, Bradfield JS. Cardiac perforation complicating cardiac electrophysiology procedures: value of angiography and use of a closure device to avoid cardiac surgery.. Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2019.
  118. Shah R, Assis F, Alugubelli N, Okada DR, Cardoso R, Shivkumar K, Tandri H. Cardiac sympathetic denervation for refractory ventricular arrhythmias in patients with structural heart disease: A systematic review.. Heart rhythm, 2019.
  119. Koene RJ, Buch E, Seo YJ, Li JM, Mbai M, Chandrashekhar Y, Shivkumar K, Tholakanahalli VN. Increased baseline ECG R-R dispersion predicts improvement in systolic function after atrial fibrillation ablation.. Open heart, 2019.
  120. Scherschel K, Hedenus K, Jungen C, Lemoine MD, Rübsamen N, Veldkamp MW, Klatt N, Lindner D, Westermann D, Casini S, Kuklik P, Eickholt C, Klöcker N, Shivkumar K, Christ T, Zeller T, Willems S, Meyer C. Cardiac glial cells release neurotrophic S100B upon catheter-based treatment of atrial fibrillation.. Science translational medicine, 2019.
  121. Hanna P, Zhu C, Rajendran PS, Shivkumar K. Anesthetizing the Fibrillating Heart.. Journal of the American Heart Association, 2019.
  122. Hsu JJ, Nsair A, Aboulhosn JA, Horwich TB, Dave RH, Shannon KM, Boyle NG, Shivkumar K, Bradfield JS. Monomorphic Ventricular Arrhythmias in Athletes.. Arrhythmia & electrophysiology review, 2019.
  123. Rajendran PS, Challis RC, Fowlkes CC, Hanna P, Tompkins JD, Jordan MC, Hiyari S, Gabris-Weber BA, Greenbaum A, Chan KY, Deverman BE, Münzberg H, Ardell JL, Salama G, Gradinaru V, Shivkumar K. Identification of peripheral neural circuits that regulate heart rate using optogenetic and viral vector strategies.. Nature communications, 2019.
  124. Shivkumar K. Catheter Ablation of Ventricular Arrhythmias.. The New England journal of medicine, 2019.
  125. Hamon D, Swid MA, Rajendran PS, Liu A, Boyle NG, Shivkumar K, Bradfield JS. Premature ventricular contraction diurnal profiles predict distinct clinical characteristics and beta-blocker responses.. Journal of cardiovascular electrophysiology, 2019.
  126. Rajendran PS, Hanna P, Zhu C, Shivkumar K. Neuroinflammation as a mechanism for cardiovascular diseases.. International journal of cardiology, 2019.
  127. Goldberger JJ, Arora R, Buckley U, Shivkumar K. Autonomic Nervous System Dysfunction: JACC Focus Seminar.. Journal of the American College of Cardiology, 2019.
  128. Jiang R, Buch E, Gima J, Upadhyay GA, Nayak HM, Beaser AD, Aziz Z, Shivkumar K, Tung R. Feasibility of percutaneous epicardial mapping and ablation for refractory atrial fibrillation: Insights into substrate and lesion transmurality.. Heart rhythm, 2019.
  129. Al-Hadithi ABAK, Khakpour H, Cruz D, Boyle NG, Shivkumar K, Bradfield JS. Reply to the Editor- Bipolar ablation of refractory VT circuits: Current opportunities and limitations.. HeartRhythm case reports, 2019.
  130. Challis RC, Ravindra Kumar S, Chan KY, Challis C, Beadle K, Jang MJ, Kim HM, Rajendran PS, Tompkins JD, Shivkumar K, Deverman BE, Gradinaru V. Systemic AAV vectors for widespread and targeted gene delivery in rodents.. Nature protocols, 2019.
  131. Bradfield JS, Fujimura O, Boyle NG, Shivkumar K. Catheter ablation in the vicinity of the proximal conduction system: Your eyes cannot see what your mind does not know.. Heart rhythm, 2019.
  132. Ellenbogen KA, Tung R, Shivkumar K, Miller JM. Journal of Cardiovascular Electrophysiology: Redefining Our Mission.. Journal of cardiovascular electrophysiology, 2018.
  133. Hanna P, Rajendran PS, Shivkumar K. Neural ablation to treat ventricular arrhythmias.. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2018.
  134. Vergara P, Tzou WS, Tung R, Brombin C, Nonis A, Vaseghi M, Frankel DS, Di Biase L, Tedrow U, Mathuria N, Nakahara S, Tholakanahalli V, Bunch TJ, Weiss JP, Dickfeld T, Lakireddy D, Burkhardt JD, Santangeli P, Callans D, Natale A, Marchlinski F, Stevenson WG, Shivkumar K, Sauer WH, Della Bella P. Predictive Score for Identifying Survival and Recurrence Risk Profiles in Patients Undergoing Ventricular Tachycardia Ablation: The I-VT Score.. Circulation. Arrhythmia and electrophysiology, 2018.
  135. Geraghty L, Santangeli P, Tedrow UB, Shivkumar K, Kumar S. Contemporary Management of Electrical Storm.. Heart, lung & circulation, 2018.
  136. Chadda KR, Ajijola OA, Vaseghi M, Shivkumar K, Huang CL, Jeevaratnam K. Ageing, the autonomic nervous system and arrhythmia: From brain to heart.. Ageing research reviews, 2018.
  137. Al-Hadithi ABAK, Khakpour H, Cruz D, Boyle NG, Shivkumar K, Bradfield JS. Incessant intraseptal ventricular tachycardia ablated utilizing extracorporeal membrane oxygenation and bipolar ablation.. HeartRhythm case reports, 2018.
  138. Hanna P, Shivkumar K. Targeting the Cardiac Ganglionated Plexi for Atrial Fibrillation: Modulate or Destroy?. JACC. Clinical electrophysiology, 2018.
  139. Turagam MK, Atoui M, Atkins D, Di Biase L, Shivkumar K, Jared Bunch T, Mohanty S, Gianni C, Natale A, Lakkireddy D. Persistent left superior vena cava as an arrhythmogenic source in atrial fibrillation: results from a multicenter experience.. Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2018.
  140. Saddic LA, Howard-Quijano K, Kipke J, Kubo Y, Dale EA, Hoover D, Shivkumar K, Eghbali M, Mahajan A. Progression of myocardial ischemia leads to unique changes in immediate-early gene expression in the spinal cord dorsal horn.. American journal of physiology. Heart and circulatory physiology, 2018.
  141. Kung GL, Vaseghi M, Gahm JK, Shevtsov J, Garfinkel A, Shivkumar K, Ennis DB. Microstructural Infarct Border Zone Remodeling in the Post-infarct Swine Heart Measured by Diffusion Tensor MRI.. Frontiers in physiology, 2018.
  142. Shivkumar K, Hanna P. Percutaneous Hemodynamic Assist Devices: Unloading the Left Atrium to Prevent Atrial Remodeling.. Journal of the American College of Cardiology, 2018.
  143. Hanna P, Shivkumar K, Ardell JL. Calming the Nervous Heart: Autonomic Therapies in Heart Failure.. Cardiac failure review, 2018.
  144. Vaseghi M, Hu TY, Tung R, Vergara P, Frankel DS, Di Biase L, Tedrow UB, Gornbein JA, Yu R, Mathuria N, Nakahara S, Tzou WS, Sauer WH, Burkhardt JD, Tholakanahalli VN, Dickfeld TM, Weiss JP, Bunch TJ, Reddy M, Callans DJ, Lakkireddy DR, Natale A, Marchlinski FE, Stevenson WG, Della Bella P, Shivkumar K. Outcomes of Catheter Ablation of Ventricular Tachycardia Based on Etiology in Nonischemic Heart Disease: An International Ventricular Tachycardia Ablation Center Collaborative Study.. JACC. Clinical electrophysiology, 2018.
  145. Moore JP, Shannon KM, Gallotti RG, McLeod CJ, Chiriac A, Walsh EP, Sreeram N, Patel AR, De Groot NM, von Alvensleben J, Balaji S, Frankel DS, Miyake CY, Perry JC, Shivkumar K. Catheter Ablation of Ventricular Arrhythmia for Ebstein's Anomaly in Unoperated and Post-Surgical Patients.. JACC. Clinical electrophysiology, 2018.
  146. Romero J, Diaz JC, Hayase J, Dave RH, Bradfield JS, Shivkumar K. Intramyocardial radiofrequency ablation of ventricular arrhythmias using intracoronary wire mapping and a coronary reentry system: Description of a novel technique.. HeartRhythm case reports, 2018.
  147. Bardsley EN, Davis H, Ajijola OA, Buckler KJ, Ardell JL, Shivkumar K, Paterson DJ. RNA Sequencing Reveals Novel Transcripts from Sympathetic Stellate Ganglia During Cardiac Sympathetic Hyperactivity.. Scientific reports, 2018.
  148. Liu K, Li D, Hao G, McCaffary D, Neely O, Woodward L, Ioannides D, Lu CJ, Brescia M, Zaccolo M, Tandri H, Ajijola OA, Ardell JL, Shivkumar K, Paterson DJ. Phosphodiesterase 2A as a therapeutic target to restore cardiac neurotransmission during sympathetic hyperactivity.. JCI insight, 2018.
  149. Li A, Zuberi Z, Bradfield JS, Zarif JK, Ward DE, Anderson RH, Shivkumar K, Saba MM. Endocardial ablation of ventricular ectopic beats arising from the basal inferoseptal process of the left ventricle.. Heart rhythm, 2018.
  150. Macias C, Khakpour H, Buch E, Shivkumar K, Bradfield JS. Limitations of 12-lead electrocardiogram wide complex tachycardia algorithms in a patient with left atrial flutter and large myocardial infarction.. HeartRhythm case reports, 2018.
  151. Wadia SK, Lluri G, Aboulhosn JA, Shivkumar K, Reemtsen BL, Laks H, Biniwale RM, Levi DS, Salem M, Moore JP. Ventricular arrhythmia burden after transcatheter versus surgical pulmonary valve replacement.. Heart (British Cardiac Society), 2018.
  152. Meng L, Shivkumar K, Ajijola O. Autonomic Regulation and Ventricular Arrhythmias.. Current treatment options in cardiovascular medicine, 2018.
  153. Kwon OJ, Pendekanti S, Fox JN, Yanagawa J, Fishbein MC, Shivkumar K, Lambert HW, Ajijola OA. Morphological Spectra of Adult Human Stellate Ganglia: Implications for Thoracic Sympathetic Denervation.. Anatomical record (Hoboken, N.J. : 2007), 2018.
  154. Bradfield JS, Shivkumar K. Ablation of Intracavitary Structures: Anatomy, Anatomy, Anatomy.. The Journal of innovations in cardiac rhythm management, 2018.
  155. Bradfield JS, Ajijola OA, Vaseghi M, Shivkumar K. Mechanisms and management of refractory ventricular arrhythmias in the age of autonomic modulation.. Heart rhythm, 2018.
  156. Yoshie K, Rajendran PS, Massoud L, Kwon O, Tadimeti V, Salavatian S, Ardell JL, Shivkumar K, Ajijola OA. Cardiac vanilloid receptor-1 afferent depletion enhances stellate ganglion neuronal activity and efferent sympathetic response to cardiac stress.. American journal of physiology. Heart and circulatory physiology, 2018.
  157. Do DH, Shivkumar K. Programmable Hypertension Control: Another Possible Indication for Implanted Pacemakers.. Journal of the American Heart Association, 2017.
  158. Vakil K, Garcia S, Tung R, Vaseghi M, Tedrow U, Della Bella P, Frankel DS, Vergara P, Di Biase L, Nagashima K, Nakahara S, Tzou WS, Burkhardt JD, Dickfeld T, Weiss JP, Bunch J, Callans D, Lakkireddy D, Natale A, Sauer WH, Stevenson WG, Marchlinski F, Shivkumar K, Tholakanahalli VN. Ventricular Tachycardia Ablation in the Elderly: An International Ventricular Tachycardia Center Collaborative Group Analysis.. Circulation. Arrhythmia and electrophysiology, 2017.
  159. Hayase J, Khakpour H, Shivkumar K, Bradfield JS. Right ventricular lead proarrhythmia: A novel intervention for an under-recognized phenomenon.. HeartRhythm case reports, 2017.
  160. Turagam MK, Vuddanda V, Atkins D, Santangeli P, Frankel DS, Tung R, Vaseghi M, Sauer WH, Tzou W, Mathuria N, Nakahara S, Dickfeld TM, Bunch TJ, Weiss P, Di Biase L, Tholakanahalli V, Vakil K, Tedrow UB, Stevenson WG, Della Bella P, Shivkumar K, Marchlinski FE, Callans DJ, Natale A, Reddy M, Lakkireddy D. Hemodynamic Support in Ventricular Tachycardia Ablation: An International VT Ablation Center Collaborative Group Study.. JACC. Clinical electrophysiology, 2017.
  161. Li A, Hayase J, Do D, Buch E, Vaseghi M, Ajijola OA, Macias C, Krokhaleva Y, Khakpour H, Boyle NG, Benharash P, Biniwale R, Shivkumar K, Bradfield JS. Hybrid surgical vs percutaneous access epicardial ventricular tachycardia ablation.. Heart rhythm, 2017.
  162. Krishnan B, Sankar A, Anand I, Adabag S, Li JM, McFalls EO, Benditt DG, Shivkumar K, Tholakanahalli VN. Post-Extrasystolic Potentiation as a Predictor of Recovery of Left Ventricular Dysfunction After Radiofrequency Catheter Ablation.. JACC. Clinical electrophysiology, 2017.
  163. Khakpour H, Shemin RJ, Lee JM, Buch E, Boyle NG, Shivkumar K, Bradfield JS. Atrioesophageal Fistula After Atrial Fibrillation Ablation: A single center series.. Journal of atrial fibrillation, 2017.
  164. Do DH, Bradfield J, Ajijola OA, Vaseghi M, Le J, Rahman S, Mahajan A, Nogami A, Boyle NG, Shivkumar K. Thoracic Epidural Anesthesia Can Be Effective for the Short-Term Management of Ventricular Tachycardia Storm.. Journal of the American Heart Association, 2017.
  165. Do DH, Eyvazian V, Bayoneta AJ, Hu P, Finn JP, Bradfield JS, Shivkumar K, Boyle NG. Cardiac magnetic resonance imaging using wideband sequences in patients with nonconditional cardiac implanted electronic devices.. Heart rhythm, 2017.
  166. Ajijola OA, Hoover DB, Simerly TM, Brown TC, Yanagawa J, Biniwale RM, Lee JM, Sadeghi A, Khanlou N, Ardell JL, Shivkumar K. Inflammation, oxidative stress, and glial cell activation characterize stellate ganglia from humans with electrical storm.. JCI insight, 2017.
  167. Shivkumar K, Ardell JL. Vagal Neuromodulation for Atrial Arrhythmias.. JACC. Clinical electrophysiology, 2017.
  168. Li A, Buch E, Boyle NG, Shivkumar K, Bradfield JS. Incidence and significance of adhesions encountered during epicardial mapping and ablation of ventricular tachycardia in patients with no history of prior cardiac surgery or pericarditis.. Heart rhythm, 2017.
  169. Meng L, Tseng CH, Shivkumar K, Ajijola O. Efficacy of Stellate Ganglion Blockade in Managing Electrical Storm: A Systematic Review.. JACC. Clinical electrophysiology, 2017.
  170. Vergara P, Tung R, Vaseghi M, Brombin C, Frankel DS, Di Biase L, Nagashima K, Tedrow U, Tzou WS, Sauer WH, Mathuria N, Nakahara S, Vakil K, Tholakanahalli V, Bunch TJ, Weiss JP, Dickfeld T, Vunnam R, Lakireddy D, Burkhardt JD, Correra A, Santangeli P, Callans D, Natale A, Marchlinski F, Stevenson WG, Shivkumar K, Della Bella P. Successful ventricular tachycardia ablation in patients with electrical storm reduces recurrences and improves survival.. Heart rhythm, 2017.
  171. Vaseghi M, Salavatian S, Rajendran PS, Yagishita D, Woodward WR, Hamon D, Yamakawa K, Irie T, Habecker BA, Shivkumar K. Parasympathetic dysfunction and antiarrhythmic effect of vagal nerve stimulation following myocardial infarction.. JCI insight, 2017.
  172. Mathuria N, Bachani N, Mandapati R, Shivkumar K, Lokhandwala Y. Coronary sinus ostium in the lateral right atrium: Implications for the electrophysiologist.. HeartRhythm case reports, 2017.
  173. Hanna P, Rajendran PS, Ajijola OA, Vaseghi M, Andrew Armour J, Ardell JL, Shivkumar K. Cardiac neuroanatomy - Imaging nerves to define functional control.. Autonomic neuroscience : basic & clinical, 2017.
  174. Hamon D, Abehsira G, Gu K, Liu A, Blaye-Felice Sadron M, Billet S, Kambur T, Swid MA, Boyle NG, Dandamudi G, Maury P, Chen M, Miller JM, Lellouche N, Shivkumar K, Bradfield JS. Circadian variability patterns predict and guide premature ventricular contraction ablation procedural inducibility and outcomes.. Heart rhythm, 2017.
  175. Kember G, Ardell JL, Shivkumar K, Armour JA. Recurrent myocardial infarction: Mechanisms of free-floating adaptation and autonomic derangement in networked cardiac neural control.. PloS one, 2017.
  176. Vaseghi M, Barwad P, Malavassi Corrales FJ, Tandri H, Mathuria N, Shah R, Sorg JM, Gima J, Mandal K, Sàenz Morales LC, Lokhandwala Y, Shivkumar K. Cardiac Sympathetic Denervation for Refractory Ventricular Arrhythmias.. Journal of the American College of Cardiology, 2017.
  177. Li A, Tung R, Shivkumar K, Bradfield JS. Brugada syndrome-Malignant phenotype associated with acute cardiac inflammation?. HeartRhythm case reports, 2017.
  178. Shapiro H, Meymandi S, Shivkumar K, Bradfield JS. Cardiac inflammation and ventricular tachycardia in Chagas disease.. HeartRhythm case reports, 2017.
  179. Chui RW, Buckley U, Rajendran PS, Vrabec T, Shivkumar K, Ardell JL. Bioelectronic block of paravertebral sympathetic nerves mitigates post-myocardial infarction ventricular arrhythmias.. Heart rhythm, 2017.
  180. Howard-Quijano K, Takamiya T, Dale EA, Kipke J, Kubo Y, Grogan T, Afyouni A, Shivkumar K, Mahajan A. Spinal cord stimulation reduces ventricular arrhythmias during acute ischemia by attenuation of regional myocardial excitability.. American journal of physiology. Heart and circulatory physiology, 2017.
  181. Balaji S, Mandapati R, Shivkumar K. Cardiac Arrhythmias in Adults with Congenital Heart Disease.. Cardiac electrophysiology clinics, 2017.
  182. Romero J, Ajijola O, Shivkumar K, Tung R. Characterization of Aortic Valve Closure Artifact During Outflow Tract Mapping: Correlation With Hemodynamics and Mechanical Valves.. Circulation. Arrhythmia and electrophysiology, 2017.
  183. Gao C, Howard-Quijano K, Rau C, Takamiya T, Song Y, Shivkumar K, Wang Y, Mahajan A. Inflammatory and apoptotic remodeling in autonomic nervous system following myocardial infarction.. PloS one, 2017.
  184. Tzou WS, Tung R, Frankel DS, Di Biase L, Santangeli P, Vaseghi M, Bunch TJ, Weiss JP, Tholakanahalli VN, Lakkireddy D, Vunnam R, Dickfeld T, Mathuria N, Tedrow U, Vergara P, Vakil K, Nakahara S, Burkhardt JD, Stevenson WG, Callans DJ, Della Bella P, Natale A, Shivkumar K, Marchlinski FE, Sauer WH. Outcomes after repeat ablation of ventricular tachycardia in structural heart disease: An analysis from the International VT Ablation Center Collaborative Group.. Heart rhythm, 2017.
  185. Santangeli P, Frankel DS, Tung R, Vaseghi M, Sauer WH, Tzou WS, Mathuria N, Nakahara S, Dickfeldt TM, Lakkireddy D, Bunch TJ, Di Biase L, Natale A, Tholakanahalli V, Tedrow UB, Kumar S, Stevenson WG, Della Bella P, Shivkumar K, Marchlinski FE, Callans DJ, International VT Ablation Center Collaborative Group. Early Mortality After Catheter Ablation of Ventricular Tachycardia in Patients With Structural Heart Disease.. Journal of the American College of Cardiology, 2017.
  186. Buch E, Shivkumar K. Could less be more in catheter ablation for persistent atrial fibrillation? Pulmonary vein isolation reconsidered.. Heart rhythm, 2017.
  187. Ardell JL, Shivkumar K. Sympathetic neural recording-It is all in the details.. Heart rhythm, 2017.
  188. Bradfield JS, Shivkumar K. Pattern Breaks on the Surface ECG: Can We Anticipate a Long Day Ahead?. Journal of cardiovascular electrophysiology, 2017.
  189. Ajijola OA, Upadhyay GA, Macias C, Shivkumar K, Tung R. Permanent His-bundle pacing for cardiac resynchronization therapy: Initial feasibility study in lieu of left ventricular lead.. Heart rhythm, 2017.
  190. Hamon D, Rajendran PS, Chui RW, Ajijola OA, Irie T, Talebi R, Salavatian S, Vaseghi M, Bradfield JS, Armour JA, Ardell JL, Shivkumar K. Premature Ventricular Contraction Coupling Interval Variability Destabilizes Cardiac Neuronal and Electrophysiological Control: Insights From Simultaneous Cardioneural Mapping.. Circulation. Arrhythmia and electrophysiology, 2017.
  191. Weiss JN, Qu Z, Shivkumar K. Electrophysiology of Hypokalemia and Hyperkalemia.. Circulation. Arrhythmia and electrophysiology, 2017.
  192. Guerra F, Bonelli P, Flori M, Cipolletta L, Carbucicchio C, Izquierdo M, Kozluk E, Shivkumar K, Vaseghi M, Patani F, Cupido C, Pala S, Ruiz-Granell R, Ferrero A, Tondo C, Capucci A. Temporal Trends and Temperature-Related Incidence of Electrical Storm: The TEMPEST Study (Temperature-Related Incidence of Electrical Storm).. Circulation. Arrhythmia and electrophysiology, 2017.
  193. Zhang F, Hamon D, Fang Z, Xu Y, Yang B, Ju W, Bradfield J, Shivkumar K, Chen M, Tung R. Value of a Posterior Electrocardiographic Lead for Localization of Ventricular Outflow Tract Arrhythmias: The V4/V8 Ratio.. JACC. Clinical electrophysiology, 2017.
  194. Buckley U, Chui RW, Rajendran PS, Vrabec T, Shivkumar K, Ardell JL. Bioelectronic neuromodulation of the paravertebral cardiac efferent sympathetic outflow and its effect on ventricular electrical indices.. Heart rhythm, 2017.
  195. Ajijola OA, Lux RL, Khahera A, Kwon O, Aliotta E, Ennis DB, Fishbein MC, Ardell JL, Shivkumar K. Sympathetic modulation of electrical activation in normal and infarcted myocardium: implications for arrhythmogenesis.. American journal of physiology. Heart and circulatory physiology, 2017.
  196. Buckley U, Rajendran PS, Shivkumar K. Ganglionated plexus ablation for atrial fibrillation: Just because we can, does that mean we should?. Heart rhythm, 2017.
  197. Tzou WS, Tung R, Frankel DS, Vaseghi M, Bunch TJ, Di Biase L, Tholakanahalli VN, Lakkireddy D, Dickfeld T, Saliaris A, Weiss JP, Mathuria N, Tedrow U, Afzal MR, Vergara P, Nagashima K, Patel M, Nakahara S, Vakil K, Burkhardt JD, Tseng CH, Natale A, Shivkumar K, Callans DJ, Stevenson WG, Della Bella P, Marchlinski FE, Sauer WH. Ventricular Tachycardia Ablation in Severe Heart Failure: An International Ventricular Tachycardia Ablation Center Collaboration Analysis.. Circulation. Arrhythmia and electrophysiology, 2017.
  198. Bradfield JS, Shivkumar K. Anatomy for Ventricular Tachycardia Ablation in Structural Heart Disease.. Cardiac electrophysiology clinics, 2016.
  199. Irie T, Yamakawa K, Hamon D, Nakamura K, Shivkumar K, Vaseghi M. Cardiac sympathetic innervation via middle cervical and stellate ganglia and antiarrhythmic mechanism of bilateral stellectomy.. American journal of physiology. Heart and circulatory physiology, 2016.
  200. Siontis KC, Kim HM, Stevenson WG, Fujii A, Bella PD, Vergara P, Shivkumar K, Tung R, Do DH, Daoud EG, Okabe T, Zeppenfeld K, Riva Silva M, Hindricks G, Arya A, Weber A, Kuck KH, Metzner A, Mathew S, Riedl J, Yokokawa M, Jongnarangsin K, Latchamsetty R, Morady F, Bogun FM. Prognostic Impact of the Timing of Recurrence of Infarct-Related Ventricular Tachycardia After Catheter Ablation.. Circulation. Arrhythmia and electrophysiology, 2016.
  201. Frankel DS, Tung R, Santangeli P, Tzou WS, Vaseghi M, Di Biase L, Nagashima K, Tedrow U, Bunch TJ, Tholakanahalli VN, Dendi R, Reddy M, Lakkireddy D, Dickfeld T, Weiss JP, Mathuria N, Vergara P, Patel M, Nakahara S, Vakil K, Sauer WH, Callans DJ, Natale A, Stevenson WG, Della Bella P, Shivkumar K, Marchlinski FE. Sex and Catheter Ablation for Ventricular Tachycardia: An International Ventricular Tachycardia Ablation Center Collaborative Group Study.. JAMA cardiology, 2016.
  202. Ajijola OA, Shivkumar K, Habecker BA. Natriuretic peptides and peripheral autonomic neurotransmission: back to the A, B, and C's.. Cardiovascular research, 2016.
  203. Salavatian S, Beaumont E, Longpré JP, Armour JA, Vinet A, Jacquemet V, Shivkumar K, Ardell JL. Vagal stimulation targets select populations of intrinsic cardiac neurons to control neurally induced atrial fibrillation.. American journal of physiology. Heart and circulatory physiology, 2016.
  204. Tung R, Josephson ME, Bradfield JS, Shivkumar K. Directional Influences of Ventricular Activation on Myocardial Scar Characterization: Voltage Mapping With Multiple Wavefronts During Ventricular Tachycardia Ablation.. Circulation. Arrhythmia and electrophysiology, 2016.
  205. Zhang P, Tung R, Zhang Z, Sheng X, Liu Q, Jiang R, Sun Y, Chen S, Yu L, Ye Y, Fu G, Shivkumar K, Jiang C. Characterization of the epicardial substrate for catheter ablation of Brugada syndrome.. Heart rhythm, 2016.
  206. Shivkumar K, Ardell JL. Cardiac autonomic control in health and disease.. The Journal of physiology, 2016.
  207. Macias C, Shivkumar K, Tung R. Novel approach to intraprocedural cardiac tamponade: Dual-site drainage with continuous suction.. Heart rhythm, 2016.
  208. Tung R, Kim S, Yagishita D, Vaseghi M, Ennis DB, Ouadah S, Ajijola OA, Bradfield JS, Mahapatra S, Finn P, Shivkumar K. Scar voltage threshold determination using ex vivo magnetic resonance imaging integration in a porcine infarct model: Influence of interelectrode distances and three-dimensional spatial effects of scar.. Heart rhythm, 2016.
  209. Shivkumar K. MY APPROACH to selecting patients for videoscopic cardiac sympathetic denervation (CSD)⁎.. Trends in cardiovascular medicine, 2016.
  210. Shivkumar K, Ajijola OA, Anand I, Armour JA, Chen PS, Esler M, De Ferrari GM, Fishbein MC, Goldberger JJ, Harper RM, Joyner MJ, Khalsa SS, Kumar R, Lane R, Mahajan A, Po S, Schwartz PJ, Somers VK, Valderrabano M, Vaseghi M, Zipes DP. Clinical neurocardiology defining the value of neuroscience-based cardiovascular therapeutics.. The Journal of physiology, 2016.
  211. Teng AE, Lustgarten DL, Vijayaraman P, Tung R, Shivkumar K, Wagner GS, Ajijola OA. Usefulness of His Bundle Pacing to Achieve Electrical Resynchronization in Patients With Complete Left Bundle Branch Block and the Relation Between Native QRS Axis, Duration, and Normalization.. The American journal of cardiology, 2016.
  212. Weiss JN, Qu Z, Shivkumar K. Ablating atrial fibrillation: A translational science perspective for clinicians.. Heart rhythm, 2016.
  213. Nakamura K, Ajijola OA, Aliotta E, Armour JA, Ardell JL, Shivkumar K. Pathological effects of chronic myocardial infarction on peripheral neurons mediating cardiac neurotransmission.. Autonomic neuroscience : basic & clinical, 2016.
  214. Hamon D, Blaye-Felice MS, Bradfield JS, Chaachoui N, Tung R, Elayi CS, Vaseghi M, Dhanjal TS, Boyle NG, Maury P, Shivkumar K, Lellouche N. A New Combined Parameter to Predict Premature Ventricular Complexes Induced Cardiomyopathy: Impact and Recognition of Epicardial Origin.. Journal of cardiovascular electrophysiology, 2016.
  215. Pokorney SD, Friedman DJ, Calkins H, Callans DJ, Daoud EG, Della-Bella P, Jackson KP, Shivkumar K, Saba S, Sapp J, Stevenson WG, Al-Khatib SM. Catheter ablation of ventricular tachycardia: Lessons learned from past clinical trials and implications for future clinical trials.. Heart rhythm, 2016.
  216. Te Riele AS, Ajijola OA, Shivkumar K, Tandri H. Role of Bilateral Sympathectomy in the Treatment of Refractory Ventricular Arrhythmias in Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy.. Circulation. Arrhythmia and electrophysiology, 2016.
  217. Saenz LC, Corrales FM, Bautista W, Traina M, Meymandi S, Rodriguez DA, Tellez LJ, Vaseghi M, Garcia F, Shivkumar K, Bradfield JS. Cardiac sympathetic denervation for intractable ventricular arrhythmias in Chagas disease.. Heart rhythm, 2016.
  218. Rao HB, Yu R, Chitnis N, DO D, Boyle NG, Shivkumar K, Bradfield JS. Ventricular Tachycardia Ablation in the Presence of Left Ventricular Thrombus: Safety and Efficacy.. Journal of cardiovascular electrophysiology, 2016.
  219. Watanabe A, Seki A, Fishbein MC, Shivkumar K, Vaseghi M. Arrhythmogenic Right Ventricular Cardiomyopathy: Electroarchitecture of the Substrate.. HeartRhythm case reports, 2016.
  220. Rajendran PS, Nakamura K, Ajijola OA, Vaseghi M, Armour JA, Ardell JL, Shivkumar K. Myocardial infarction induces structural and functional remodelling of the intrinsic cardiac nervous system.. The Journal of physiology, 2015.
  221. Yamakawa K, Howard-Quijano K, Zhou W, Rajendran P, Yagishita D, Vaseghi M, Ajijola OA, Armour JA, Shivkumar K, Ardell JL, Mahajan A. Central vs. peripheral neuraxial sympathetic control of porcine ventricular electrophysiology.. American journal of physiology. Regulatory, integrative and comparative physiology, 2015.
  222. Buch E, Share M, Tung R, Benharash P, Sharma P, Koneru J, Mandapati R, Ellenbogen KA, Shivkumar K. Long-term clinical outcomes of focal impulse and rotor modulation for treatment of atrial fibrillation: A multicenter experience.. Heart rhythm, 2015.
  223. Buch E, Benharash P, Frank P, Share M, Tung R, Shivkumar K, Mandapati R, Mandapati R. Response to Letter by Jalife et al Regarding Article, "Quantitative Analysis of Localized Sources Identified by Focal Impulse and Rotor Mapping in Atrial Fibrillation".. Circulation. Arrhythmia and electrophysiology, 2015.
  224. Vakil KP, Roukoz H, Tung R, Levy WC, Anand IS, Shivkumar K, Rector TS, Vaseghi M, Tholakanahalli V. Mortality prediction using a modified Seattle Heart Failure Model may improve patient selection for ventricular tachycardia ablation.. American heart journal, 2015.
  225. Buch E, Shivkumar K. Catheter Ablation of Atrial Fibrillation: Advent of Second-Generation Technologies.. Journal of the American College of Cardiology, 2015.
  226. Yamakawa K, Rajendran PS, Takamiya T, Yagishita D, So EL, Mahajan A, Shivkumar K, Vaseghi M. Vagal nerve stimulation activates vagal afferent fibers that reduce cardiac efferent parasympathetic effects.. American journal of physiology. Heart and circulatory physiology, 2015.
  227. Romero J, Ajijola OA, Boyle N, Shivkumar K, Tung R. Prolonged high-power endocardial ablation of epicardial microreentrant VT from the LV summit in a patient with nonischemic cardiomyopathy.. HeartRhythm case reports, 2015.
  228. Ajijola OA, Romero J, Vorobiof G, Suh WM, Shivkumar K, Tung R. Hyper-response to cardiac resynchronization with permanent His bundle pacing: Is parahisian pacing sufficient?. HeartRhythm case reports, 2015.
  229. Buckley U, Yamakawa K, Takamiya T, Andrew Armour J, Shivkumar K, Ardell JL. Targeted stellate decentralization: Implications for sympathetic control of ventricular electrophysiology.. Heart rhythm, 2015.
  230. Tung R, Bauer B, Schelbert H, Lynch JP, Auerbach M, Gupta P, Schiepers C, Chan S, Ferris J, Barrio M, Ajijola O, Bradfield J, Shivkumar K. Incidence of abnormal positron emission tomography in patients with unexplained cardiomyopathy and ventricular arrhythmias: The potential role of occult inflammation in arrhythmogenesis.. Heart rhythm, 2015.
  231. Buckley U, Shivkumar K, Ardell JL. Autonomic Regulation Therapy in Heart Failure.. Current heart failure reports, 2015.
  232. Fukuda K, Kanazawa H, Aizawa Y, Ardell JL, Shivkumar K. Cardiac innervation and sudden cardiac death.. Circulation research, 2015.
  233. Tung R, Vaseghi M, Frankel DS, Vergara P, Di Biase L, Nagashima K, Yu R, Vangala S, Tseng CH, Choi EK, Khurshid S, Patel M, Mathuria N, Nakahara S, Tzou WS, Sauer WH, Vakil K, Tedrow U, Burkhardt JD, Tholakanahalli VN, Saliaris A, Dickfeld T, Weiss JP, Bunch TJ, Reddy M, Kanmanthareddy A, Callans DJ, Lakkireddy D, Natale A, Marchlinski F, Stevenson WG, Della Bella P, Shivkumar K. Freedom from recurrent ventricular tachycardia after catheter ablation is associated with improved survival in patients with structural heart disease: An International VT Ablation Center Collaborative Group study.. Heart rhythm, 2015.
  234. Buckley U, Shivkumar K. Stress-induced cardiac arrhythmias: The heart-brain interaction.. Trends in cardiovascular medicine, 2015.
  235. Buckley U, Shivkumar K. Implantable cardioverter defibrillators: even better than we thought?. European heart journal, 2015.
  236. Huang WA, Shivkumar K, Vaseghi M. Device-based autonomic modulation in arrhythmia patients: the role of vagal nerve stimulation.. Current treatment options in cardiovascular medicine, 2015.
  237. Latchamsetty R, Yokokawa M, Morady F, Kim HM, Mathew S, Tilz R, Kuck KH, Nagashima K, Tedrow U, Stevenson WG, Yu R, Tung R, Shivkumar K, Sarrazin JF, Arya A, Hindricks G, Vunnam R, Dickfeld T, Daoud EG, Oza NM, Bogun F. Multicenter Outcomes for Catheter Ablation of Idiopathic Premature Ventricular Complexes.. JACC. Clinical electrophysiology, 2015.
  238. Benharash P, Buch E, Frank P, Share M, Tung R, Shivkumar K, Mandapati R. Quantitative analysis of localized sources identified by focal impulse and rotor modulation mapping in atrial fibrillation.. Circulation. Arrhythmia and electrophysiology, 2015.
  239. Tung R, Shivkumar K. Epicardial Ablation of Ventricular Tachycardia.. Methodist DeBakey cardiovascular journal, 2015.
  240. Ajijola OA, Boyle NG, Shivkumar K. Detecting and monitoring arrhythmia recurrence following catheter ablation of atrial fibrillation.. Frontiers in physiology, 2015.
  241. Mao J, Moriarty JM, Mandapati R, Boyle NG, Shivkumar K, Vaseghi M. Reply to the Editor-More Awarenessless Risk-Interpretation of Ablation Risk Caused by Coronary Arterial Anatomy.. Heart rhythm, 2015.
  242. Rashid S, Rapacchi S, Shivkumar K, Plotnik A, Finn JP, Hu P. Modified wideband three-dimensional late gadolinium enhancement MRI for patients with implantable cardiac devices.. Magnetic resonance in medicine, 2015.
  243. Irie T, Yu R, Bradfield JS, Vaseghi M, Buch EF, Ajijola O, Macias C, Fujimura O, Mandapati R, Boyle NG, Shivkumar K, Tung R. Relationship between sinus rhythm late activation zones and critical sites for scar-related ventricular tachycardia: systematic analysis of isochronal late activation mapping.. Circulation. Arrhythmia and electrophysiology, 2015.
  244. Ajijola OA, Howard-Quijano K, Scovotti J, Vaseghi M, Lee C, Mahajan A, Shivkumar K. Augmentation of cardiac sympathetic tone by percutaneous low-level stellate ganglion stimulation in humans: a feasibility study.. Physiological reports, 2015.
  245. Ajijola OA, Yagishita D, Reddy NK, Yamakawa K, Vaseghi M, Downs AM, Hoover DB, Ardell JL, Shivkumar K. Remodeling of stellate ganglion neurons after spatially targeted myocardial infarction: Neuropeptide and morphologic changes.. Heart rhythm, 2015.
  246. Tung R, Shivkumar K. Neuraxial modulation for treatment of VT storm.. Journal of biomedical research, 2014.
  247. Yagishita D, Chui RW, Yamakawa K, Rajendran PS, Ajijola OA, Nakamura K, So EL, Mahajan A, Shivkumar K, Vaseghi M. Sympathetic nerve stimulation, not circulating norepinephrine, modulates T-peak to T-end interval by increasing global dispersion of repolarization.. Circulation. Arrhythmia and electrophysiology, 2014.
  248. Mao J, Moriarty JM, Mandapati R, Boyle NG, Shivkumar K, Vaseghi M. Catheter ablation of accessory pathways near the coronary sinus: value of defining coronary arterial anatomy.. Heart rhythm, 2014.
  249. Bradfield JS, Shivkumar K. Cardiac resynchronization therapy-induced proarrhythmia: understanding preferential conduction within myocardial scars.. Circulation. Arrhythmia and electrophysiology, 2014.
  250. Hamon D, Taleski J, Vaseghi M, Shivkumar K, Boyle NG. Arrhythmias in the Heart Transplant Patient.. Arrhythmia & electrophysiology review, 2014.
  251. Yu R, Ma S, Tung R, Stevens S, Macias C, Bradfield J, Buch E, Vaseghi M, Fujimura O, Gornbein J, Mandapati R, Shivkumar K, Boyle NG. Catheter ablation of scar-based ventricular tachycardia: Relationship of procedure duration to outcomes and hospital mortality.. Heart rhythm, 2014.
  252. Pedersen CT, Kay GN, Kalman J, Borggrefe M, Della-Bella P, Dickfeld T, Dorian P, Huikuri H, Kim YH, Knight B, Marchlinski F, Ross D, Sacher F, Sapp J, Shivkumar K, Soejima K, Tada H, Alexander ME, Triedman JK, Yamada T, Kirchhof P, Lip GY, Kuck KH, Mont L, Haines D, Indik J, Dimarco J, Exner D, Iesaka Y, Savelieva I. EHRA/HRS/APHRS expert consensus on ventricular arrhythmias.. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2014.
  253. Pedersen CT, Kay GN, Kalman J, Borggrefe M, Della-Bella P, Dickfeld T, Dorian P, Huikuri H, Kim YH, Knight B, Marchlinski F, Ross D, Sacher F, Sapp J, Shivkumar K, Soejima K, Tada H, Alexander ME, Triedman JK, Yamada T, Kirchhof P, Lip GY, Kuck KH, Mont L, Haines D, Indik J, Dimarco J, Exner D, Iesaka Y, Savelieva I, EP-Europace,UK. EHRA/HRS/APHRS expert consensus on ventricular arrhythmias.. Heart rhythm, 2014.
  254. Bourke T, Buch E, Mathuria N, Michowitz Y, Yu R, Mandapati R, Shivkumar K, Tung R. Biophysical parameters during radiofrequency catheter ablation of scar-mediated ventricular tachycardia: epicardial and endocardial applications via manual and magnetic navigation.. Journal of cardiovascular electrophysiology, 2014.
  255. Miller JM, Kowal RC, Swarup V, Daubert JP, Daoud EG, Day JD, Ellenbogen KA, Hummel JD, Baykaner T, Krummen DE, Narayan SM, Reddy VY, Shivkumar K, Steinberg JS, Wheelan KR. Initial independent outcomes from focal impulse and rotor modulation ablation for atrial fibrillation: multicenter FIRM registry.. Journal of cardiovascular electrophysiology, 2014.
  256. Bradfield J, Woodbury B, Traina M, Hernandez S, Sanchez D, Wachsner R, Shivkumar K, Meymandi S. Repolarization parameters are associated with mortality in chagas disease patients in the United States.. Indian pacing and electrophysiology journal, 2014.
  257. Yamakawa K, So EL, Rajendran PS, Hoang JD, Makkar N, Mahajan A, Shivkumar K, Vaseghi M. Electrophysiological effects of right and left vagal nerve stimulation on the ventricular myocardium.. American journal of physiology. Heart and circulatory physiology, 2014.
  258. Lynch JP, Hwang J, Bradfield J, Fishbein M, Shivkumar K, Tung R. Cardiac involvement in sarcoidosis: evolving concepts in diagnosis and treatment.. Seminars in respiratory and critical care medicine, 2014.
  259. Lakkireddy D, Kanmanthareddy A, Biria M, Madhu Reddy Y, Pillarisetti J, Mahapatra S, Berenbom L, Chinitz L, Atkins D, Bommana S, Tung R, DI Biase L, Shivkumar K, Natale A. Radiofrequency ablation of drug refractory ventricular tachycardia related to cocaine use: a feasibility, safety, and efficacy study.. Journal of cardiovascular electrophysiology, 2014.
  260. Bradfield JS, Vaseghi M, Shivkumar K. Renal denervation for refractory ventricular arrhythmias.. Trends in cardiovascular medicine, 2014.
  261. Arshad A, Johnson CK, Mittal S, Buch E, Hamam I, Tran T, Shaw RE, Musat D, Preminger M, Sichrovsky T, Herweg B, Shivkumar K, Hummel J, Steinberg JS. Comparative safety of periablation anticoagulation strategies for atrial fibrillation: data from a large multicenter study.. Pacing and clinical electrophysiology : PACE, 2014.
  262. Stevens SM, Tung R, Shivkumar K, Bradfield JS. A Case Of Difficult Epicardial Access For Ablation Of Ventricular Tachcyardia.. Journal of atrial fibrillation, 2014.
  263. Angle JF, Prince EA, Matsumoto AH, Lohmeier TE, Roberts AM, Misra S, Razavi MK, Katholi RE, Sarin SN, Sica DA, Shivkumar K, Ahrar K. Proceedings from the Society of Interventional Radiology Foundation Research Consensus Panel on Renal Sympathetic Denervation.. Journal of vascular and interventional radiology : JVIR, 2014.
  264. Tung R, Mathuria NS, Nagel R, Mandapati R, Buch EF, Bradfield JS, Vaseghi M, Boyle NG, Shivkumar K. Response to letter regarding "Impact of local ablation on inter-connected channels within ventricular scar: mechanistic implications for substrate modification".. Circulation. Arrhythmia and electrophysiology, 2014.
  265. Bradfield JS, Homsi M, Shivkumar K, Miller JM. Coupling interval variability differentiates ventricular ectopic complexes arising in the aortic sinus of valsalva and great cardiac vein from other sources: mechanistic and arrhythmic risk implications.. Journal of the American College of Cardiology, 2014.
  266. Narayan SM, Baykaner T, Clopton P, Schricker A, Lalani GG, Krummen DE, Shivkumar K, Miller JM. Ablation of rotor and focal sources reduces late recurrence of atrial fibrillation compared with trigger ablation alone: extended follow-up of the CONFIRM trial (Conventional Ablation for Atrial Fibrillation With or Without Focal Impulse and Rotor Modulation).. Journal of the American College of Cardiology, 2014.
  267. Rajendran PS, Buch E, Shivkumar K. Marshaling the autonomic nervous system for treatment of atrial fibrillation.. Journal of the American College of Cardiology, 2014.
  268. Reddy YM, Chinitz L, Mansour M, Bunch TJ, Mahapatra S, Swarup V, Di Biase L, Bommana S, Atkins D, Tung R, Shivkumar K, Burkhardt JD, Ruskin J, Natale A, Lakkireddy D. Percutaneous left ventricular assist devices in ventricular tachycardia ablation: multicenter experience.. Circulation. Arrhythmia and electrophysiology, 2014.
  269. Ajijola OA, Tung R, Shivkumar K. Ventricular tachycardia in ischemic heart disease substrates.. Indian heart journal, 2014.
  270. Khalsa SS, Shahabi L, Ajijola OA, Bystritsky A, Naliboff BD, Shivkumar K. Synergistic application of cardiac sympathetic decentralization and comprehensive psychiatric treatment in the management of anxiety and electrical storm.. Frontiers in integrative neuroscience, 2014.
  271. Remo BF, Preminger M, Bradfield J, Mittal S, Boyle N, Gupta A, Shivkumar K, Steinberg JS, Dickfeld T. Safety and efficacy of renal denervation as a novel treatment of ventricular tachycardia storm in patients with cardiomyopathy.. Heart rhythm, 2013.
  272. Methangkool E, Chua JH, Gopinath A, Shivkumar K, Mahajan A. Anesthetic considerations for thoracoscopic sympathetic ganglionectomy to treat ventricular tachycardia storm: a single-center experience.. Journal of cardiothoracic and vascular anesthesia, 2013.
  273. Vaseghi M, Gima J, Kanaan C, Ajijola OA, Marmureanu A, Mahajan A, Shivkumar K. Cardiac sympathetic denervation in patients with refractory ventricular arrhythmias or electrical storm: intermediate and long-term follow-up.. Heart rhythm, 2013.
  274. Bradfield JS, Tung R, Shivkumar K. Transmural "Scar-to-Scar" Reentrant Ventricular Tachycardia.. Indian pacing and electrophysiology journal, 2013.
  275. Rashid S, Rapacchi S, Vaseghi M, Tung R, Shivkumar K, Finn JP, Hu P. Improved late gadolinium enhancement MR imaging for patients with implanted cardiac devices.. Radiology, 2013.
  276. Tung R, Mathuria NS, Nagel R, Mandapati R, Buch EF, Bradfield JS, Vaseghi M, Boyle NG, Shivkumar K. Impact of local ablation on interconnected channels within ventricular scar: mechanistic implications for substrate modification.. Circulation. Arrhythmia and electrophysiology, 2013.
  277. Stevens SM, Tung R, Rashid S, Gima J, Cote S, Pavez G, Khan S, Ennis DB, Finn JP, Boyle N, Shivkumar K, Hu P. Device artifact reduction for magnetic resonance imaging of patients with implantable cardioverter-defibrillators and ventricular tachycardia: late gadolinium enhancement correlation with electroanatomic mapping.. Heart rhythm, 2013.
  278. van Dam PM, Tung R, Shivkumar K, Laks M. Quantitative localization of premature ventricular contractions using myocardial activation ECGI from the standard 12-lead electrocardiogram.. Journal of electrocardiology, 2013.
  279. Tung R, Shivkumar K. Unusual response to entrainment of ventricular tachycardia: in or out?. Heart rhythm, 2013.
  280. Ajijola OA, Yagishita D, Patel KJ, Vaseghi M, Zhou W, Yamakawa K, So E, Lux RL, Mahajan A, Shivkumar K. Focal myocardial infarction induces global remodeling of cardiac sympathetic innervation: neural remodeling in a spatial context.. American journal of physiology. Heart and circulatory physiology, 2013.
  281. Vaseghi M, Yamakawa K, Sinha A, So EL, Zhou W, Ajijola OA, Lux RL, Laks M, Shivkumar K, Mahajan A. Modulation of regional dispersion of repolarization and T-peak to T-end interval by the right and left stellate ganglia.. American journal of physiology. Heart and circulatory physiology, 2013.
  282. Yagishita D, Ajijola OA, Vaseghi M, Nsair A, Zhou W, Yamakawa K, Tung R, Mahajan A, Shivkumar K. Electrical homogenization of ventricular scar by application of collagenase: a novel strategy for arrhythmia therapy.. Circulation. Arrhythmia and electrophysiology, 2013.
  283. Vaseghi M, Macias C, Tung R, Shivkumar K. Percutaneous interventricular septal access in a patient with aortic and mitral mechanical valves: a novel technique for catheter ablation of ventricular tachycardia.. Heart rhythm, 2013.
  284. Viskin S, Wilde AA, Guevara-Valdivia ME, Daoulah A, Krahn AD, Zipes DP, Halkin A, Shivkumar K, Boyle NG, Adler A, Belhassen B, Schapachnik E, Asrar F, Rosso R. Quinidine, a life-saving medication for Brugada syndrome, is inaccessible in many countries.. Journal of the American College of Cardiology, 2013.
  285. Narayan SM, Krummen DE, Clopton P, Shivkumar K, Miller JM. Direct or coincidental elimination of stable rotors or focal sources may explain successful atrial fibrillation ablation: on-treatment analysis of the CONFIRM trial (Conventional ablation for AF with or without focal impulse and rotor modulation).. Journal of the American College of Cardiology, 2013.
  286. Tung R, Shivkumar K. Integrated care for management of ventricular arrhythmias: can a specialized unit and catheter ablation improve mortality?. Circulation, 2013.
  287. Bradfield JS, Huang W, Tung R, Buch E, Okhovat JP, Fujimura O, Boyle NG, Gornbein J, Ellenbogen KA, Shivkumar K. Tissue voltage discordance during tachycardia versus sinus rhythm: implications for catheter ablation.. Heart rhythm, 2013.
  288. Narayan SM, Shivkumar K, Krummen DE, Miller JM, Rappel WJ. Panoramic electrophysiological mapping but not electrogram morphology identifies stable sources for human atrial fibrillation: stable atrial fibrillation rotors and focal sources relate poorly to fractionated electrograms.. Circulation. Arrhythmia and electrophysiology, 2013.
  289. Zhou W, Yamakawa K, Benharash P, Ajijola O, Ennis D, Hadaya J, Vaseghi M, Shivkumar K, Mahajan A. Effect of stellate ganglia stimulation on global and regional left ventricular function as assessed by speckle tracking echocardiography.. American journal of physiology. Heart and circulatory physiology, 2013.
  290. Tung R, Shivkumar K. The value of image integration for epicardial catheter ablation of ventricular tachycardia.. JACC. Cardiovascular imaging, 2013.
  291. Bradfield JS, Tung R, Boyle NG, Buch E, Shivkumar K. Our approach to minimize risk of epicardial access: standard techniques with the addition of electroanatomic mapping guidance.. Journal of cardiovascular electrophysiology, 2012.
  292. Ajijola OA, Vaseghi M, Zhou W, Yamakawa K, Benharash P, Hadaya J, Lux RL, Mahajan A, Shivkumar K. Functional differences between junctional and extrajunctional adrenergic receptor activation in mammalian ventricle.. American journal of physiology. Heart and circulatory physiology, 2012.
  293. Tung R, Michowitz Y, Yu R, Mathuria N, Vaseghi M, Buch E, Bradfield J, Fujimura O, Gima J, Discepolo W, Mandapati R, Shivkumar K. Epicardial ablation of ventricular tachycardia: an institutional experience of safety and efficacy.. Heart rhythm, 2012.
  294. Mandapati R, Shivkumar K. In silico to in vivo: mutation-specific modeling of arrhythmia risk.. Journal of the American College of Cardiology, 2012.
  295. Shivkumar K, Ellenbogen KA, Hummel JD, Miller JM, Steinberg JS. Acute termination of human atrial fibrillation by identification and catheter ablation of localized rotors and sources: first multicenter experience of focal impulse and rotor modulation (FIRM) ablation.. Journal of cardiovascular electrophysiology, 2012.
  296. Tholakanahalli VN, Bertog S, Roukoz H, Shivkumar K. Catheter ablation of ventricular tachycardia using intracoronary wire mapping and coil embolization: description of a new technique.. Heart rhythm, 2012.
  297. Boyle NG, Shivkumar K. Epicardial interventions in electrophysiology.. Circulation, 2012.
  298. Mathuria N, Tung R, Shivkumar K. Advances in ablation of ventricular tachycardia in nonischemic cardiomyopathy.. Current cardiology reports, 2012.
  299. Bradfield JS, Buch E, Shivkumar K. Interventions to decrease the morbidity and mortality associated with implantable cardioverter-defibrillator shocks.. Current opinion in critical care, 2012.
  300. Tung R, Shivkumar K, Mandapati R. Ablation of Post Transplant Atrial Flutter and Pseudo-fibrillation Using Magnetic Navigation via a Superior Approach.. Indian pacing and electrophysiology journal, 2012.
  301. Bourke T, Moriarty J, Boyle NG, Shivkumar K. Atrial Fibrillation Ablation: Do We Really Need Preprocedural Imaging?. Cardiac electrophysiology clinics, 2012.
  302. Di Biase L, Santangeli P, Bai R, Tung R, David Burkhardt J, Shivkumar K, Natale A. The Emerging Role of Epicardial Ablation.. Cardiac electrophysiology clinics, 2012.
  303. Vaseghi M, Shivkumar K. Neuraxial modulation for ventricular arrhythmias: a new hope.. Heart rhythm, 2012.
  304. Ajijola OA, Wisco JJ, Lambert HW, Mahajan A, Stark E, Fishbein MC, Shivkumar K. Extracardiac neural remodeling in humans with cardiomyopathy.. Circulation. Arrhythmia and electrophysiology, 2012.
  305. Michowitz Y, Buch E, Bourke T, Tung R, Bradfield J, Mathuria N, Boyle NG, Shivkumar K. Unipolar and bipolar electrogram characteristics predict exit block during pulmonary vein antral isolation.. Pacing and clinical electrophysiology : PACE, 2012.
  306. Vaseghi M, Fujimura O, Shivkumar K. Narrow QRS complex tachycardia: what is the mechanism?. Heart rhythm, 2012.
  307. Ajijola OA, Vaseghi M, Mahajan A, Shivkumar K. Bilateral cardiac sympathetic denervation: why, who and when?. Expert review of cardiovascular therapy, 2012.
  308. Narayan SM, Krummen DE, Shivkumar K, Clopton P, Rappel WJ, Miller JM. Treatment of atrial fibrillation by the ablation of localized sources: CONFIRM (Conventional Ablation for Atrial Fibrillation With or Without Focal Impulse and Rotor Modulation) trial.. Journal of the American College of Cardiology, 2012.
  309. Tung R, Buch E, Shivkumar K. Catheter ablation of atrial fibrillation.. Circulation, 2012.
  310. Bradfield J, Shapiro S, Finch W, Tung R, Boyle NG, Buch E, Mathuria N, Mandapati R, Shivkumar K, Bersohn M. Catheter ablation of typical atrial flutter in severe pulmonary hypertension.. Journal of cardiovascular electrophysiology, 2012.
  311. Michowitz Y, Tung R, Athill C, Shivkumar K. Ventricular tachycardia from remote blunt chest trauma: combined epicardial-endocardial right ventricular substrate characterization.. Pacing and clinical electrophysiology : PACE, 2012.
  312. Bradfield J, Tung R, Mandapati R, Boyle NG, Shivkumar K. Catheter ablation utilizing remote magnetic navigation: a review of applications and outcomes.. Pacing and clinical electrophysiology : PACE, 2012.
  313. Vaseghi M, Zhou W, Shi J, Ajijola OA, Hadaya J, Shivkumar K, Mahajan A. Sympathetic innervation of the anterior left ventricular wall by the right and left stellate ganglia.. Heart rhythm, 2012.
  314. Ajijola OA, Shivkumar K. Neural remodeling and myocardial infarction: the stellate ganglion as a double agent.. Journal of the American College of Cardiology, 2012.
  315. Bradfield J, Boyle NG, Mandapati R, Shivkumar K. The emerging role of cardiac resynchronization therapy in milder heart failure: are we implanting too late for response?. Current heart failure reports, 2012.
  316. Vaseghi M, Lux RL, Mahajan A, Shivkumar K. Sympathetic stimulation increases dispersion of repolarization in humans with myocardial infarction.. American journal of physiology. Heart and circulatory physiology, 2012.
  317. Tung R, Mathuria N, Michowitz Y, Yu R, Buch E, Bradfield J, Mandapati R, Wiener I, Boyle N, Shivkumar K. Functional pace-mapping responses for identification of targets for catheter ablation of scar-mediated ventricular tachycardia.. Circulation. Arrhythmia and electrophysiology, 2012.
  318. Stephens DN, Truong UT, Nikoozadeh A, Oralkan O, Seo CH, Cannata J, Dentinger A, Thomenius K, de la Rama A, Nguyen T, Lin F, Khuri-Yakub P, Mahajan A, Shivkumar K, O'Donnell M, Sahn DJ. First in vivo use of a capacitive micromachined ultrasound transducer array-based imaging and ablation catheter.. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, 2012.
  319. Mathuria N, Buch E, Shivkumar K. Pleuropericardial fistula formation after prior epicardial catheter ablation for ventricular tachycardia.. Circulation. Arrhythmia and electrophysiology, 2012.
  320. Ajijola OA, Lellouche N, Bourke T, Tung R, Ahn S, Mahajan A, Shivkumar K. Bilateral cardiac sympathetic denervation for the management of electrical storm.. Journal of the American College of Cardiology, 2012.
  321. Mathuria NS, Vaseghi M, Buch E, Shivkumar K. Successful ablation of an epicardial ventricular tachycardia using a surgical ablation tool.. Circulation. Arrhythmia and electrophysiology, 2011.
  322. Discepolo W, Buch E, Shivkumar K. How to target postablation perimitral flutter: valve isthmus or PV triggers?. Journal of cardiovascular electrophysiology, 2011.
  323. Ramirez RJ, Ajijola OA, Zhou W, Holmström B, Lüning H, Laks MM, Shivkumar K, Mahajan A. A new electrocardiographic marker for sympathetic nerve stimulation: modulation of repolarization by stimulation of stellate ganglia.. Journal of electrocardiology, 2011.
  324. Bradfield J, Tung R, Boyle NG, Shivkumar K. Managing patients with ICD shocks and programming tachycardia therapies during acute heart failure syndromes.. Heart failure reviews, 2011.
  325. Shivkumar K, Narayan SM. Imaging cardiac arrhythmias.. Science translational medicine, 2011.
  326. Michowitz Y, Mathuria N, Shivkumar K, Mandapati R. Wide complex tachycardia with a unique mode of termination: what is the mechanism?. Pacing and clinical electrophysiology : PACE, 2011.
  327. Fonseca CG, Backhaus M, Bluemke DA, Britten RD, Chung JD, Cowan BR, Dinov ID, Finn JP, Hunter PJ, Kadish AH, Lee DC, Lima JA, Medrano-Gracia P, Shivkumar K, Suinesiaputra A, Tao W, Young AA. The Cardiac Atlas Project--an imaging database for computational modeling and statistical atlases of the heart.. Bioinformatics (Oxford, England), 2011.
  328. Lee W, Griffin W, Wildes D, Buckley D, Topka T, Chodakauskas T, Langer M, Calisti S, Bergstøl S, Malacrida JP, Lanteri F, Maffre J, McDaniel B, Shivkumar K, Cummings J, Callans D, Silvestry F, Packer D. A 10-Fr ultrasound catheter with integrated micromotor for 4-D intracardiac echocardiography.. IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2011.
  329. Seo CH, Stephens DN, Cannata J, Dentinger A, Lin F, Park S, Wildes D, Thomenius KE, Chen P, Nguyen T, de La Rama A, Jeong JS, Mahajan A, Shivkumar K, Nikoozadeh A, Oralkan O, Truong U, Sahn DJ, Khuri-Yakub PT, O'Donnell M. The feasibility of using thermal strain imaging to regulate energy delivery during intracardiac radio-frequency ablation.. IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2011.
  330. Bai R, Di Biase L, Shivkumar K, Mohanty P, Tung R, Santangeli P, Saenz LC, Vacca M, Verma A, Khaykin Y, Mohanty S, Burkhardt JD, Hongo R, Beheiry S, Dello Russo A, Casella M, Pelargonio G, Santarelli P, Sanchez J, Tondo C, Natale A. Ablation of ventricular arrhythmias in arrhythmogenic right ventricular dysplasia/cardiomyopathy: arrhythmia-free survival after endo-epicardial substrate based mapping and ablation.. Circulation. Arrhythmia and electrophysiology, 2011.
  331. Tung R, Boyle NG, Shivkumar K. Catheter ablation of ventricular tachycardia.. Circulation, 2011.
  332. Bourke T, Mathuria N, Michowitz Y, Shivkumar K. Hybrid techniques and neuraxial modulation for treatment of ventricular tachycardia.. Future cardiology, 2011.
  333. Lellouche N, De Diego C, Boyle NG, Wiener I, Akopyan G, Child JS, Shivkumar K. Relationship between mechanical and electrical remodelling in patients with cardiac resynchronization implanted defibrillators.. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2011.
  334. Francis J, Bourke T, Shivkumar K. Calming the storm by sympatholysis.. Indian pacing and electrophysiology journal, 2011.
  335. Di Biase L, Al-Ahamad A, Santangeli P, Hsia HH, Sanchez J, Bai R, Bailey S, Horton R, Gallinghouse GJ, Burkhardt DJ, Lakkireddy D, Yang Y, Badhwar N, Scheinman M, Tung R, Dello Russo A, Pelargonio G, Casella M, Tomassoni G, Shivkumar K, Natale A. Safety and outcomes of cryoablation for ventricular tachyarrhythmias: results from a multicenter experience.. Heart rhythm, 2011.
  336. Nakahara S, Vaseghi M, Ramirez RJ, Fonseca CG, Lai CK, Finn JP, Mahajan A, Boyle NG, Shivkumar K. Characterization of myocardial scars: electrophysiological imaging correlates in a porcine infarct model.. Heart rhythm, 2011.
  337. Michowitz Y, Lellouche N, Contractor T, Bourke T, Wiener I, Buch E, Boyle N, Bersohn M, Shivkumar K. Defibrillation threshold testing fails to show clinical benefit during long-term follow-up of patients undergoing cardiac resynchronization therapy defibrillator implantation.. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2011.
  338. Tung R, Nakahara S, Maccabelli G, Buch E, Wiener I, Boyle NG, Carbucicchio C, Bella PD, Shivkumar K. Ultra high-density multipolar mapping with double ventricular access: a novel technique for ablation of ventricular tachycardia.. Journal of cardiovascular electrophysiology, 2011.
  339. Kneller J, Shivkumar K, Tung R. Assessment of His-Purkinje reserve: what is the mechanism of block?. Heart rhythm, 2010.
  340. Tung R, Nakahara S, Ramirez R, Gui D, Magyar C, Lai C, Fishbein M, Shivkumar K. Accuracy of combined endocardial and epicardial electroanatomic mapping of a reperfused porcine infarct model: a comparison of electrofield and magnetic systems with histopathologic correlation.. Heart rhythm, 2010.
  341. Bello D, Einhorn A, Kaushal R, Kenchaiah S, Raney A, Fieno D, Narula J, Goldberger J, Shivkumar K, Subacius H, Kadish A. Cardiac magnetic resonance imaging: infarct size is an independent predictor of mortality in patients with coronary artery disease.. Magnetic resonance imaging, 2010.
  342. Bradfield J, Buch E, Shivkumar K. Three dissociated rhythms after ablation of an atypical right atrial flutter.. Journal of cardiovascular electrophysiology, 2010.
  343. Michowitz Y, Nakahara S, Bourke T, Buch E, Vaseghi M, De Diego C, Wiener I, Mahajan A, Shivkumar K. Electrophysiological differences between the epicardium and the endocardium of the left atrium.. Pacing and clinical electrophysiology : PACE, 2010.
  344. Aboulhosn J, Williams R, Shivkumar K, Barkowski R, Plunkett M, Miner P, Houser L, Laks H, Reemtsen B, Shannon K, Child J. Arrhythmia recurrence in adult patients with single ventricle physiology following surgical Fontan conversion.. Congenital heart disease, 2010.
  345. Bradfield J, Buch E, Tung R, Shivkumar K. Recurrent irregular tachycardia that consistently terminates on a P wave: what is the mechanism?. Journal of cardiovascular electrophysiology, 2010.
  346. Nakahara S, Tung R, Ramirez RJ, Gima J, Wiener I, Mahajan A, Boyle NG, Shivkumar K. Distribution of late potentials within infarct scars assessed by ultra high-density mapping.. Heart rhythm, 2010.
  347. Tung R, Boyle NG, Shivkumar K. Catheter ablation of ventricular tachycardia.. Circulation, 2010.
  348. Michowitz Y, Mathuria N, Tung R, Esmailian F, Kwon M, Nakahara S, Bourke T, Boyle NG, Mahajan A, Shivkumar K. Hybrid procedures for epicardial catheter ablation of ventricular tachycardia: value of surgical access.. Heart rhythm, 2010.
  349. Shackley BS, Nguyen TP, Shivkumar K, Finn PJ, Fishbein MC. Idiopathic massive myocardial calcification: a case report and review of the literature.. Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology, 2010.
  350. Vaseghi M, Shivkumar K. Catheter ablation of idiopathic ventricular tachycardia.. Circulation. Arrhythmia and electrophysiology, 2010.
  351. Nakahara S, Tung R, Ramirez RJ, Michowitz Y, Vaseghi M, Buch E, Gima J, Wiener I, Mahajan A, Boyle NG, Shivkumar K. Characterization of the arrhythmogenic substrate in ischemic and nonischemic cardiomyopathy implications for catheter ablation of hemodynamically unstable ventricular tachycardia.. Journal of the American College of Cardiology, 2010.
  352. Mandapati R, Shivkumar K. The autonomic stress of sleep: Sleeping the sleep of death.. Heart rhythm, 2010.
  353. Santangeli P, Di Biase L, Lakkireddy D, Burkhardt JD, Pillarisetti J, Michowitz Y, Sanchez JE, Horton R, Mohanty P, Gallinghouse GJ, Dello Russo A, Casella M, Pelargonio G, Santarelli P, Verma A, Narasimhan C, Shivkumar K, Natale A. Radiofrequency catheter ablation of ventricular arrhythmias in patients with hypertrophic cardiomyopathy: safety and feasibility.. Heart rhythm, 2010.
  354. Bourke T, Vaseghi M, Michowitz Y, Sankhla V, Shah M, Swapna N, Boyle NG, Mahajan A, Narasimhan C, Lokhandwala Y, Shivkumar K. Neuraxial modulation for refractory ventricular arrhythmias: value of thoracic epidural anesthesia and surgical left cardiac sympathetic denervation.. Circulation, 2010.
  355. Bradfield J, Mathuria N, Tung R, Shivkumar K. Coronary sinus fistula: a reason not to implant a transvenous left ventricular lead.. Heart rhythm, 2010.
  356. Buch E, Nakahara S, Boyle NG, Shivkumar K. Epicardial Catheter Ablation of Atrial Fibrillation.. Cardiac electrophysiology clinics, 2010.
  357. Shivkumar K, Boyle NG. Preface.. Cardiac electrophysiology clinics, 2010.
  358. Bradfield J, Shivkumar K. ACP Journal Club. Review: Early treatment of a cardiovascular event with nitrates or ACE inhibitors reduces short-term mortality.. Annals of internal medicine, 2010.
  359. Natale A, Raviele A, Al-Ahmad A, Alfieri O, Aliot E, Almendral J, Breithardt G, Brugada J, Calkins H, Callans D, Cappato R, Camm JA, Della Bella P, Guiraudon GM, Haïssaguerre M, Hindricks G, Ho SY, Kuck KH, Marchlinski F, Packer DL, Prystowsky EN, Reddy VY, Ruskin JN, Scanavacca M, Shivkumar K, Soejima K, Stevenson WJ, Themistoclakis S, Verma A, Wilber D, Venice Chart members. Venice Chart International Consensus document on ventricular tachycardia/ventricular fibrillation ablation.. Journal of cardiovascular electrophysiology, 2010.
  360. Khuri-Yakub BT, Oralkan O, Nikoozadeh A, Wygant IO, Zhuang S, Gencel M, Choe JW, Stephens DN, de la Rama A, Chen P, Lin F, Dentinger A, Wildes D, Thomenius K, Shivkumar K, Mahajan A, Seo CH, O'Donnell M, Truong U, Sahn DJ. Miniaturized ultrasound imaging probes enabled by CMUT arrays with integrated frontend electronic circuits.. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference, 2010.
  361. Tung R, Nakahara S, Ramirez R, Lai C, Fishbein MC, Shivkumar K. Distinguishing epicardial fat from scar: analysis of electrograms using high-density electroanatomic mapping in a novel porcine infarct model.. Heart rhythm, 2009.
  362. Shivkumar K, Buch E, Boyle NG. Nonpharmacologic management of atrial fibrillation: role of the pulmonary veins and posterior left atrium.. Heart rhythm, 2009.
  363. Dave AS, Aboulhosn J, Child JS, Shivkumar K. Transconduit puncture for catheter ablation of atrial tachycardia in a patient with extracardiac Fontan palliation.. Heart rhythm, 2009.
  364. Tung R, Shivkumar K. Ripple mapping: making electroanatomic mapping user-friendly.. Heart rhythm, 2009.
  365. Nakahara S, Ramirez RJ, Buch E, Michowitz Y, Vaseghi M, de Diego C, Boyle NG, Mahajan A, Shivkumar K. Intrapericardial balloon placement for prevention of collateral injury during catheter ablation of the left atrium in a porcine model.. Heart rhythm, 2009.
  366. Shivkumar K, Tung R. Improving our understanding of epicardial ventricular tachycardia in nonischemic cardiomyopathy.. Journal of the American College of Cardiology, 2009.
  367. Ho JK, Nakahara S, Shivkumar K, Mahajan A. Live three-dimensional transesophageal echocardiographic imaging of novel multielectrode ablation catheters.. Heart rhythm, 2009.
  368. Schenke-Layland K, Stock UA, Nsair A, Xie J, Angelis E, Fonseca CG, Larbig R, Mahajan A, Shivkumar K, Fishbein MC, MacLellan WR. Cardiomyopathy is associated with structural remodelling of heart valve extracellular matrix.. European heart journal, 2009.
  369. Buch E, Tung R, Shehata M, Shivkumar K. Alternating cycle length during supraventricular tachycardia: what is the mechanism?. Journal of cardiovascular electrophysiology, 2009.
  370. Ho JK, Liakopoulos OJ, Crowley R, Yezbick AB, Sanchez E, Shivkumar K, Mahajan A. In vivo detection of myocardial ischemia in pigs using visible light spectroscopy.. Anesthesia and analgesia, 2009.
  371. Cesario D, Kedia R, Desai N, Aboulhosn J, Uslan D, Boyle N, Fujimura O, Shehata M, Buch E, Shivkumar K. Device extraction in adults with congenital heart disease.. Pacing and clinical electrophysiology : PACE, 2009.
  372. Hijazi ZM, Shivkumar K, Sahn DJ. Intracardiac echocardiography during interventional and electrophysiological cardiac catheterization.. Circulation, 2009.
  373. Boyle NG, Shivkumar K. Atrial fibrillation in congestive heart failure: current management.. Cardiology clinics, 2009.
  374. Stephens DN, O'Donnell M, Thomenius K, Dentinger A, Wildes D, Chen P, Shung KK, Cannata J, Khuri-Yakub P, Oralkan O, Mahajan A, Shivkumar K, Sahn DJ. Experimental studies with a 9F forward-looking intracardiac imaging and ablation catheter.. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, 2009.
  375. Vaseghi M, Lellouche N, Ritter H, Fonarow GC, Patel JK, Moriguchi J, Fishbein MC, Kobashigawa JA, Shivkumar K. Mode and mechanisms of death after orthotopic heart transplantation.. Heart rhythm, 2009.
  376. Sahn DJ, Stephens DN, Cannata JM, Shung K, Oralkan O, Nikoozadeh A, Khuri-Yakub BT, Nguyen H, Chen P, Dentinger AM, Wildes D, Thomenius KE, Mahajan A, Shivkumar K, O'Donnell M. A family of intracardiac ultrasound imaging devices designed for guidance of electrophysiology ablation procedures.. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference, 2009.
  377. Nikoozadeh A, Wygant IO, Lin DS, Oralkan O, Ergun AS, Stephens DN, Thomenius KE, Dentinger AM, Wildes D, Akopyan G, Shivkumar K, Mahajan A, Sahn DJ, Khuri-Yakub BT. Forward-looking intracardiac ultrasound imaging using a 1-D CMUT array integrated with custom front-end electronics.. IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2008.
  378. Buch E, Nakahara S, Shivkumar K. Intra-pericardial balloon retraction of the left atrium: a novel method to prevent esophageal injury during catheter ablation.. Heart rhythm, 2008.
  379. Ramirez RJ, Shivkumar K. Latent atrial fibrillation triggers originating in accessory pathways.. Heart rhythm, 2008.
  380. Buch E, Nakahara S, Shivkumar K. Diagnostic maneuver during narrow-complex tachycardia: what is the arrhythmia mechanism?. Heart rhythm, 2008.
  381. Vaseghi M, Boyle NG, Kedia R, Patel JK, Cesario DA, Wiener I, Kobashigawa JA, Shivkumar K. Supraventricular tachycardia after orthotopic cardiac transplantation.. Journal of the American College of Cardiology, 2008.
  382. Vaseghi M, Shivkumar K. The role of the autonomic nervous system in sudden cardiac death.. Progress in cardiovascular diseases, 2008.
  383. Buch E, Shivkumar K. Exploring the potential of pulmonary vein recordings: can they help elucidate mechanisms of paroxysmal atrial fibrillation?. Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2008.
  384. Boyle NG, Shivkumar K. Atrial fibrillation and congestive heart failure.. Current heart failure reports, 2008.
  385. Stephens DN, Cannata J, Liu R, Zhao JZ, Shung KK, Nguyen H, Chia R, Dentinger A, Wildes D, Thomenius KE, Mahajan A, Shivkumar K, Kim K, O'Donnell M, Sahn D. The acoustic lens design and in vivo use of a multifunctional catheter combining intracardiac ultrasound imaging and electrophysiology sensing.. IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2008.
  386. Mahajan A, Crowley R, Ho JK, Sanchez E, Trivedi P, Natterson B, Shivkumar K. Imaging the ascending aorta and aortic arch using transesophageal echocardiography: the expanded aortic view.. Echocardiography (Mount Kisco, N.Y.), 2008.
  387. Lellouche N, De Diego C, Vaseghi M, Buch E, Cesario DA, Mahajan A, Wiener I, Fonarow GC, Boyle NG, Shivkumar K. Cardiac resynchronization therapy response is associated with shorter duration of atrial fibrillation.. Pacing and clinical electrophysiology : PACE, 2007.
  388. Li XK, Pemberton J, Thomenius K, Dentinger A, Lowe RI, Ashraf M, Shung KK, Chia R, Stephens DN, O'Donnell M, Mahajan A, Balaji S, Shivkumar K, Sahn DJ. Development of an electrophysiology (EP)-enabled intracardiac ultrasound catheter integrated with NavX 3-dimensional electrofield mapping for guiding cardiac EP interventions: experimental studies.. Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, 2007.
  389. Lellouche N, Buch E, Celigoj A, Siegerman C, Cesario D, De Diego C, Mahajan A, Boyle NG, Wiener I, Garfinkel A, Shivkumar K. Functional characterization of atrial electrograms in sinus rhythm delineates sites of parasympathetic innervation in patients with paroxysmal atrial fibrillation.. Journal of the American College of Cardiology, 2007.
  390. Shivkumar K. Percutaneous epicardial ablation of atrial fibrillation.. Heart rhythm, 2007.
  391. Buch E, Lellouche N, De Diego C, Vaseghi M, Cesario DA, Fujimura O, Wiener I, Child JS, Boyle NG, Shivkumar K. Left ventricular apical wall motion abnormality is associated with lack of response to cardiac resynchronization therapy in patients with ischemic cardiomyopathy.. Heart rhythm, 2007.
  392. Bidart C, Vaseghi M, Cesario DA, Mahajan A, Fujimura O, Boyle NG, Shivkumar K. Radiofrequency current delivery via transseptal needle to facilitate septal puncture.. Heart rhythm, 2007.
  393. Lellouche N, De Diego C, Akopyan G, Boyle NG, Mahajan A, Cesario DA, Wiener I, Shivkumar K. Changes and predictive value of dispersion of repolarization parameters for appropriate therapy in patients with biventricular implantable cardioverter-defibrillators.. Heart rhythm, 2007.
  394. Yang HM, Lai CK, Patel J, Moore J, Chen PS, Shivkumar K, Fishbein MC. Irreversible intrapulmonary vascular changes after pulmonary vein stenosis complicating catheter ablation for atrial fibrillation.. Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology, 2007.
  395. Cesario DA, Mahajan A, Shivkumar K. Lesion-forming technologies for catheter ablation of atrial fibrillation.. Heart rhythm, 2006.
  396. Lellouche N, De Diego C, Cesario DA, Vaseghi M, Horowitz BN, Mahajan A, Wiener I, Boyle NG, Fonarow GC, Shivkumar K. Usefulness of preimplantation B-type natriuretic peptide level for predicting response to cardiac resynchronization therapy.. The American journal of cardiology, 2006.
  397. Buch E, Vaseghi M, Cesario DA, Shivkumar K. A novel method for preventing phrenic nerve injury during catheter ablation.. Heart rhythm, 2006.
  398. Cesario DA, Brar R, Shivkumar K. Alterations in ion channel physiology in diabetic cardiomyopathy.. Endocrinology and metabolism clinics of North America, 2006.
  399. Vaseghi M, Shannon KM, Wetzel GT, Shivkumar K. Reentry around the heart.. Heart rhythm, 2006.
  400. Horowitz BN, Vaseghi M, Mahajan A, Cesario DA, Buch E, Valderrábano M, Boyle NG, Ellenbogen KA, Shivkumar K. Percutaneous intrapericardial echocardiography during catheter ablation: a feasibility study.. Heart rhythm, 2006.
  401. Vaseghi M, Cesario DA, Mahajan A, Wiener I, Boyle NG, Fishbein MC, Horowitz BN, Shivkumar K. Catheter ablation of right ventricular outflow tract tachycardia: value of defining coronary anatomy.. Journal of cardiovascular electrophysiology, 2006.
  402. Buch E, Cesario DA, Shivkumar K. The autonomic innervation of the ligament of Marshall.. Journal of cardiovascular electrophysiology, 2006.
  403. Boyle NG, Shivkumar K. Arrhythmia diagnosis: simple and elegant.. Heart rhythm, 2006.
  404. Cesario DA, Shenoda M, Brar R, Shivkumar K. Left ventricular lead stabilization utilizing a coronary stent.. Pacing and clinical electrophysiology : PACE, 2006.
  405. Cesario DA, Vaseghi M, Boyle NG, Fishbein MC, Valderrábano M, Narasimhan C, Wiener I, Shivkumar K. Value of high-density endocardial and epicardial mapping for catheter ablation of hemodynamically unstable ventricular tachycardia.. Heart rhythm, 2006.
  406. Mahajan A, Moore J, Cesario DA, Shivkumar K. Use of thoracic epidural anesthesia for management of electrical storm: a case report.. Heart rhythm, 2005.
  407. Vaseghi M, Cesario DA, Valderrabano M, Boyle NG, Ratib O, Finn JP, Wiener I, Shivkumar K. Impedance monitoring during catheter ablation of atrial fibrillation.. Heart rhythm, 2005.
  408. Shivkumar K. Pulmonary-vein cryoisolation versus left-atrial linear cryoablation for atrial fibrillation.. Nature clinical practice. Cardiovascular medicine, 2005.
  409. Belikov S, Marijic J, Laks H, Staudacher M, Boyle N, Shivkumar K, Odim J. Sepsis from insidious pacemaker infection and unsuspected tricuspid valve endocarditis: the importance of transesophageal echocardiography in guiding explantation strategy.. Journal of cardiothoracic and vascular anesthesia, 2005.
  410. Glikson M, Swerdlow CD, Gurevitz OT, Daoud E, Shivkumar K, Wilkoff B, Shipman T, Friedman PA. Optimal combination of discriminators for differentiating ventricular from supraventricular tachycardia by dual-chamber defibrillators.. Journal of cardiovascular electrophysiology, 2005.
  411. Vaseghi M, Cesario D, Swerdlow CD, Shivkumar K. Counterclockwise atrial flutter in dextrocardia.. Heart rhythm, 2005.
  412. Cesario DA, Broder HJ, Fishbein MC, Shivkumar K. Histopathologic characterization of the atrioventricular conduction axis following catheter ablation.. Heart rhythm, 2005.
  413. Vaseghi M, Cesario D, Shannon KM, Shivkumar K. Incessant tachycardia following catheter ablation of an accessory pathway: what is the mechanism?. Heart rhythm, 2005.
  414. Vaseghi M, Cesario DA, Ji S, Shannon KM, Wiener I, Boyle NG, Fonarow GC, Valderrábano M, Shivkumar K. Beyond coronary sinus angiography: the value of coronary arteriography and identification of the pericardiophrenic vein during left ventricular lead placement.. Pacing and clinical electrophysiology : PACE, 2005.
  415. Pai RK, Boyle NG, Child JS, Shivkumar K. Transient left recurrent laryngeal nerve palsy following catheter ablation of atrial fibrillation.. Heart rhythm, 2005.
  416. Shivkumar K, N Weiss J. The slippery slope of human ventricular arrhythmias.. Journal of cardiovascular electrophysiology, 2004.
  417. Bello D, Kipper S, Valderrábano M, Shivkumar K. Catheter ablation of ventricular tachycardia guided by contrast-enhanced cardiac computed tomography.. Heart rhythm, 2004.
  418. Valderrábano M, Cesario DA, Ji S, Shannon K, Wiener I, Swerdlow CD, Oral H, Morady F, Shivkumar K. Percutaneous epicardial mapping during ablation of difficult accessory pathways as an alternative to cardiac surgery.. Heart rhythm, 2004.
  419. Ji S, Cesario D, Valderrabano M, Shivkumar K. The molecular basis of cardiac arrhythmias in patients with cardiomyopathy.. Current heart failure reports, 2004.
  420. Cesario D, Bhargava M, Valderrábano M, Fonarow GC, Wilkoff B, Shivkumar K. Azygos vein lead implantation: a novel adjunctive technique for implantable cardioverter defibrillator placement.. Journal of cardiovascular electrophysiology, 2004.
  421. Shivkumar K, Valderrabano M. Use of potassium channel openers for pharmacologic modulation of cardiac excitability.. Journal of cardiovascular electrophysiology, 2004.
  422. Cesario DA, Valderrabano M, Cai JJ, Ji S, Shannon KM, Weiss JN, Wiener I, Olshansky B, Chen PS, Shivkumar K. Electrophysiological characterization of cardiac veins in humans.. Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2004.
  423. Tede NH, Shivkumar K, Perloff JK, Middlekauff HR, Fishbein MC, Child JS, Laks H. Signal-averaged electrocardiogram in Ebstein's anomaly.. The American journal of cardiology, 2004.
  424. Ji S, Cesario DA, Swerdlow CD, Shivkumar K. Left ventricular endocardial lead placement using a modified transseptal approach.. Journal of cardiovascular electrophysiology, 2004.
  425. Swerdlow C, Shivkumar K, Zhang J. Determination of the upper limit of vulnerability using implantable cardioverter-defibrillator electrograms.. Circulation, 2003.
  426. Shivkumar K. Mechanisms of arrhythmias: are we still "learning while burning"? (editorial).. Journal of cardiovascular electrophysiology, 2002.
  427. Shivkumar K, Murali NS, Krishnan SC. The molecular basis of cardiac arrhythmias.. Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2002.
  428. Christenson SD, Olshansky B, Shivkumar K. Unusual response to atrial extrastimulus testing.. Journal of cardiovascular electrophysiology, 2002.