Kalyanam Shivkumar, Ph.D. - Publications

Affiliations: 
2000 University of California, Los Angeles, Los Angeles, CA 
Area:
Cardiac Electrophysiology

200 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2020 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, ... ... Shivkumar K, et al. Genotype Predicts Outcomes in Fetuses and Neonates With Severe Congenital Long QT Syndrome. Jacc. Clinical Electrophysiology. 6: 1561-1570. PMID 33213816 DOI: 10.1016/j.jacep.2020.06.001  0.32
2019 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. 8: 83-89. PMID 31114681 DOI: 10.15420/aer.2019.19.3  0.32
2018 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. 4: 1300-1307. PMID 30336876 DOI: 10.1016/j.jacep.2018.05.009  0.32
2017 Weiss JN, Qu Z, Shivkumar K. Electrophysiology of Hypokalemia and Hyperkalemia. Circulation. Arrhythmia and Electrophysiology. 10. PMID 28314851 DOI: 10.1161/CIRCEP.116.004667  0.92
2016 Weiss JN, Qu Z, Shivkumar K. Ablating atrial fibrillation: A translational science perspective for clinicians. Heart Rhythm : the Official Journal of the Heart Rhythm Society. PMID 27241354 DOI: 10.1016/j.hrthm.2016.05.026  0.92
2016 Shivkumar K, Ajijola OA, Anand I, Armour JA, Chen PS, Esler M, De Ferrari G, Fishbein MC, Goldberger JJ, Harper RM, Joyner MJ, Khalsa SS, Kumar R, Lane R, Mahajan A, et al. Clinical neurocardiology-defining the value of neuroscience-based cardiovascular therapeutics. The Journal of Physiology. PMID 27114333 DOI: 10.1113/JP271870  0.8
2016 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 : the Official Journal of the Heart Rhythm Society. PMID 27050910 DOI: 10.1016/j.hrthm.2016.04.001  0.8
2016 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 : the Official Journal of the Heart Rhythm Society. PMID 26969783 DOI: 10.1016/j.hrthm.2016.03.014  0.8
2016 Watanabe A, Seki A, Fishbein MC, Shivkumar K, Vaseghi M. Arrhythmogenic right ventricular cardiomyopathy: Electroarchitecture of the substrate Heartrhythm Case Reports. 2: 47-51. DOI: 10.1016/j.hrcr.2015.09.004  0.8
2015 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. 170: 1099-104. PMID 26678631 DOI: 10.1016/j.ahj.2015.09.008  0.8
2015 Yamakawa K, Howard-Quijano K, Zhou W, Rajendran PS, 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. ajpregu.00252.2015. PMID 26661096 DOI: 10.1152/ajpregu.00252.2015  0.8
2015 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. PMID 26643285 DOI: 10.1111/jce.12892  0.8
2015 Rajendran PS, Nakamura K, Ajijola OA, Vaseghi M, Armour JA, Ardell JL, Shivkumar K. Myocardial infarction induces structural and functional remodeling of the intrinsic cardiac nervous system. The Journal of Physiology. PMID 26572244 DOI: 10.1113/JP271165  0.8
2015 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 Multi-Center Experience. Heart Rhythm : the Official Journal of the Heart Rhythm Society. PMID 26498260 DOI: 10.1016/j.hrthm.2015.10.031  0.8
2015 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. 8: 1299-300. PMID 26487628 DOI: 10.1161/CIRCEP.115.003362  0.8
2015 Buch E, Shivkumar K. Catheter Ablation of Atrial Fibrillation: Advent of Second-Generation Technologies. Journal of the American College of Cardiology. 66: 1361-3. PMID 26383723 DOI: 10.1016/j.jacc.2015.07.056  0.8
2015 Yamakawa K, Rajendran PS, Takamiya T, Yagashita 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. ajpheart.00558.2015. PMID 26371172 DOI: 10.1152/ajpheart.00558.2015  0.8
2015 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 : the Official Journal of the Heart Rhythm Society. PMID 26282244 DOI: 10.1016/j.hrthm.2015.08.022  0.8
2015 Tung R, Bauer B, Schelbert H, Lynch J, 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 : the Official Journal of the Heart Rhythm Society. PMID 26272522 DOI: 10.1016/j.hrthm.2015.08.014  0.8
2015 Buckley U, Shivkumar K, Ardell JL. Autonomic Regulation Therapy in Heart Failure. Current Heart Failure Reports. 12: 284-93. PMID 26054327 DOI: 10.1007/s11897-015-0263-7  0.8
2015 Buckley U, Shivkumar K. Stress-induced cardiac arrhythmias: The heart-brain interaction. Trends in Cardiovascular Medicine. PMID 26051207 DOI: 10.1016/j.tcm.2015.05.001  0.8
2015 Fukuda K, Kanazawa H, Aizawa Y, Ardell JL, Shivkumar K. Cardiac innervation and sudden cardiac death. Circulation Research. 116: 2005-19. PMID 26044253 DOI: 10.1161/CIRCRESAHA.116.304679  0.8
2015 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, ... ... Shivkumar K, et al. 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 : the Official Journal of the Heart Rhythm Society. PMID 26031376 DOI: 10.1016/j.hrthm.2015.05.036  0.8
2015 Buckley U, Shivkumar K. Implantable cardioverter defibrillators: even better than we thought? European Heart Journal. 36: 1646-8. PMID 25943537 DOI: 10.1093/eurheartj/ehv158  0.8
2015 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. 17: 379. PMID 25894588 DOI: 10.1007/s11936-015-0379-9  0.8
2015 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. 8: 554-61. PMID 25873718 DOI: 10.1161/CIRCEP.115.002721  0.8
2015 Ajijola OA, Boyle NG, Shivkumar K. Detecting and monitoring arrhythmia recurrence following catheter ablation of atrial fibrillation. Frontiers in Physiology. 6: 90. PMID 25870562 DOI: 10.3389/fphys.2015.00090  0.8
2015 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 : the Official Journal of the Heart Rhythm Society. 12: e66-7. PMID 25814410 DOI: 10.1016/j.hrthm.2015.03.038  0.8
2015 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 : Official Journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine. PMID 25772155 DOI: 10.1002/mrm.25601  0.8
2015 Tung R, Shivkumar K. Neuraxial modulation for treatment of VT storm. Journal of Biomedical Research. 29: 56-60. PMID 25745476 DOI: 10.7555/JBR.29.20140161  0.8
2015 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. 8: 390-9. PMID 25740836 DOI: 10.1161/CIRCEP.114.002637  0.8
2015 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 : the Official Journal of the Heart Rhythm Society. 12: 1027-35. PMID 25640636 DOI: 10.1016/j.hrthm.2015.01.045  0.8
2015 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. 8: 174-85. PMID 25532528 DOI: 10.1161/CIRCEP.114.002195  0.8
2015 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 : the Official Journal of the Heart Rhythm Society. 12: 508-14. PMID 25485779 DOI: 10.1016/j.hrthm.2014.11.035  0.8
2015 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 : the Official Journal of the Heart Rhythm Society. 12: 86-94. PMID 25285644 DOI: 10.1016/j.hrthm.2014.10.004  0.8
2015 Rashid S, Rapacchi S, Shivkumar K, Plotnik A, Finn PJ, Hu P. Modified wideband 3D late gadolinium enhancement (LGE) MRI for patients with implantable cardiac devices Journal of Cardiovascular Magnetic Resonance. 1-3. DOI: 10.1186/1532-429X-17-S1-Q26  0.8
2015 Stephens DN, Foiret J, Lucero S, Ferrara KW, Shivkumar K, Khuri-Yakub P. 10 MHz catheter-based annular array for thermal strain guided intramural cardiac ablations 2015 Ieee International Ultrasonics Symposium, Ius 2015. DOI: 10.1109/ULTSYM.2015.0038  0.8
2015 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, et al. Multicenter outcomes for catheter ablation of idiopathic premature ventricular complexes Jacc: Clinical Electrophysiology. 1: 116-123. DOI: 10.1016/j.jacep.2015.04.005  0.8
2015 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. 1: 464-468. DOI: 10.1016/j.hrcr.2015.07.008  0.8
2015 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. 1: 429-433. DOI: 10.1016/j.hrcr.2015.05.006  0.8
2014 Bradfield J, Woodbury B, Traina M, Hernandez S, Sanchez D, Wachsner R, Shivkumar K, Meymandi S. Response to letter to the editor regarding article "repolarization parameters are associated with mortality in chagas disease patients in the United States". Indian Pacing and Electrophysiology Journal. 14: 311-2. PMID 25609901  0.8
2014 Bradfield JS, Shivkumar K. Cardiac resynchronization therapy-induced proarrhythmia: understanding preferential conduction within myocardial scars. Circulation. Arrhythmia and Electrophysiology. 7: 1000-2. PMID 25516575 DOI: 10.1161/CIRCEP.114.002390  0.8
2014 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, et al. EHRA/HRS/APHRS expert consensus on ventricular arrhythmias. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 11: e166-96. PMID 25179489 DOI: 10.1016/j.hrthm.2014.07.024  0.8
2014 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, et al. 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. 16: 1257-83. PMID 25172618 DOI: 10.1093/europace/euu194  0.8
2014 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. 14: 171-80. PMID 25057218  0.8
2014 Bradfield JS, Vaseghi M, Shivkumar K. Renal denervation for refractory ventricular arrhythmias. Trends in Cardiovascular Medicine. 24: 206-13. PMID 25017919 DOI: 10.1016/j.tcm.2014.05.006  0.8
2014 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. 307: H722-31. PMID 25015962 DOI: 10.1152/ajpheart.00279.2014  0.8
2014 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. 35: 372-90. PMID 25007089 DOI: 10.1055/s-0034-1376889  0.8
2014 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. 25: 921-9. PMID 24948520 DOI: 10.1111/jce.12474  0.8
2014 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. 25: 1165-73. PMID 24946895 DOI: 10.1111/jce.12477  0.8
2014 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. 37: 665-73. PMID 24797604 DOI: 10.1111/pace.12401  0.8
2014 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. 7: 363. PMID 24736430 DOI: 10.1161/CIRCEP.114.001467  0.8
2014 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. 25: 739-46. PMID 24724798 DOI: 10.1111/jce.12432  0.8
2014 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. 25: 497-509. PMID 24674208 DOI: 10.1016/j.jvir.2013.12.572  0.8
2014 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. 63: 2151-8. PMID 24657687 DOI: 10.1016/j.jacc.2014.02.551  0.8
2014 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. 63: 1761-8. PMID 24632280 DOI: 10.1016/j.jacc.2014.02.543  0.8
2014 Ajijola OA, Tung R, Shivkumar K. Ventricular tachycardia in ischemic heart disease substrates. Indian Heart Journal. 66: S24-34. PMID 24568826 DOI: 10.1016/j.ihj.2013.12.039  0.8
2014 Rajendran PS, Buch E, Shivkumar K. Marshaling the autonomic nervous system for treatment of atrial fibrillation. Journal of the American College of Cardiology. 63: 1902-3. PMID 24561143 DOI: 10.1016/j.jacc.2014.01.033  0.8
2014 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. 7: 244-50. PMID 24532564 DOI: 10.1161/CIRCEP.113.000548  0.8
2014 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. 7: 98. PMID 24427121 DOI: 10.3389/fnint.2013.00098  0.8
2014 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 : the Official Journal of the Heart Rhythm Society. 11: 541-6. PMID 24389229 DOI: 10.1016/j.hrthm.2013.12.038  0.8
2014 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 : the Official Journal of the Heart Rhythm Society. 11: 360-6. PMID 24291775 DOI: 10.1016/j.hrthm.2013.11.028  0.8
2014 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. 28: 69-75. PMID 24290748 DOI: 10.1053/j.jvca.2013.08.019  0.8
2014 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 : the Official Journal of the Heart Rhythm Society. 11: 289-98. PMID 24140812 DOI: 10.1016/j.hrthm.2013.10.032  0.8
2014 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. 270: 269-74. PMID 24086074 DOI: 10.1148/radiol.13130942  0.8
2014 Tung R, Shivkumar K. Unusual response to entrainment of ventricular tachycardia: in or out? Heart Rhythm : the Official Journal of the Heart Rhythm Society. 11: 725-7. PMID 24016698 DOI: 10.1016/j.hrthm.2013.09.006  0.8
2014 Stevens SM, Hamon D, Yu R, Shivkumar K, Boyle NG. Electrocardiographic recognition of epicardial arrhythmias Cardiac Electrophysiology Clinics. 6: 603-611. DOI: 10.1016/j.ccep.2014.05.007  0.8
2014 Macias C, Nakamura K, Tung R, Boyle NG, Shivkumar K, Bradfield JS. Importance of delayed enhanced cardiac MRI in idiopathic RVOT-VT: Differentiating mimics including early stage ARVC and cardiac sarcoidosis Journal of Atrial Fibrillation. 7: 106-111.  0.8
2014 Stevens SM, Tung R, Shivkumar K, Bradfield JS. A case of difficult epicardial access for ablation of ventricular tachcyardia Journal of Atrial Fibrillation. 6: 33-36.  0.8
2013 Bradfield JS, Tung R, Shivkumar K. Transmural "Scar-to-Scar" Reentrant Ventricular Tachycardia. Indian Pacing and Electrophysiology Journal. 13: 212-6. PMID 24482562  0.8
2013 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. 6: 1131-8. PMID 24162832 DOI: 10.1161/CIRCEP.113.000867  0.8
2013 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. 46: 574-9. PMID 24028996 DOI: 10.1016/j.jelectrocard.2013.08.005  0.8
2013 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. 305: H1020-30. PMID 23893168 DOI: 10.1152/ajpheart.00056.2013  0.8
2013 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. 305: H1031-40. PMID 23893167 DOI: 10.1152/ajpheart.00434.2013  0.8
2013 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. 6: 776-83. PMID 23873142 DOI: 10.1161/CIRCEP.113.000448  0.8
2013 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 : the Official Journal of the Heart Rhythm Society. 10: 1069-73. PMID 23643678 DOI: 10.1016/j.hrthm.2013.04.029  0.8
2013 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, Fadreguilan EC, et al. Quinidine, a life-saving medication for Brugada syndrome, is inaccessible in many countries. Journal of the American College of Cardiology. 61: 2383-7. PMID 23583244 DOI: 10.1016/j.jacc.2013.02.077  0.8
2013 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. 62: 138-47. PMID 23563126 DOI: 10.1016/j.jacc.2013.03.021  0.8
2013 Tung R, Shivkumar K. Integrated care for management of ventricular arrhythmias: can a specialized unit and catheter ablation improve mortality? Circulation. 127: 1354-6. PMID 23547176 DOI: 10.1161/CIRCULATIONAHA.113.001775  0.8
2013 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. 10: 800-804. PMID 23434619 DOI: 10.1016/j.hrthm.2013.02.020  0.8
2013 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. 6: 58-67. PMID 23392583 DOI: 10.1161/CIRCEP.111.977264  0.8
2013 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. 304: H840-7. PMID 23335795 DOI: 10.1152/ajpheart.00695.2012  0.8
2013 Tung R, Shivkumar K. The value of image integration for epicardial catheter ablation of ventricular tachycardia. Jacc. Cardiovascular Imaging. 6: 53-5. PMID 23328561 DOI: 10.1016/j.jcmg.2012.06.009  0.8
2013 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. 24: 723-7. PMID 23279311 DOI: 10.1111/jce.12058  0.8
2013 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. 10: 490-498. PMID 23246598 DOI: 10.1016/j.hrthm.2012.12.013  0.8
2013 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. 304: H579-88. PMID 23241324 DOI: 10.1152/ajpheart.00754.2012  0.8
2013 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 : the Official Journal of the Heart Rhythm Society. 10: 292-6. PMID 23089899 DOI: 10.1016/j.hrthm.2012.10.031  0.8
2013 Vaseghi M, Fujimura O, Shivkumar K. Narrow QRS complex tachycardia: What is the mechanism? Heart Rhythm. 10: 1402-1404. PMID 22885663 DOI: 10.1016/j.hrthm.2012.08.012  0.8
2013 Biase LD, Santangeli P, Burkhardt JD, Shivkumar K, Natale A. Special Ablation Approaches: Epicardial, Other Cardiac Electrophysiology: From Cell to Bedside: Sixth Edition. 1263-1276. DOI: 10.1016/B978-1-4557-2856-5.00125-4  0.8
2013 Buch E, Boyle NG, Shivkumar K. Catheter Ablation: Technical Aspects Cardiac Electrophysiology: From Cell to Bedside: Sixth Edition. 1199-1207. DOI: 10.1016/B978-1-4557-2856-5.00120-5  0.8
2013 Vaseghi M, Ajijola OA, Mahajan A, Shivkumar K. Sympathetic Innervation, Denervation, and Cardiac Arrhythmias Cardiac Electrophysiology: From Cell to Bedside: Sixth Edition. 409-417. DOI: 10.1016/B978-1-4557-2856-5.00041-8  0.8
2012 Mandapati R, Shivkumar K. In silico to in vivo: mutation-specific modeling of arrhythmia risk. Journal of the American College of Cardiology. 60: 2192-3. PMID 23153845 DOI: 10.1016/j.jacc.2012.06.060  0.8
2012 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. 23: 1277-85. PMID 23130890 DOI: 10.1111/jce.12000  0.8
2012 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. 12: 229-32. PMID 23071385  0.8
2012 Vaseghi M, Shivkumar K. Neuraxial modulation for ventricular arrhythmias: a new hope. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 9: 1888-9. PMID 23036525 DOI: 10.1016/j.hrthm.2012.08.023  0.8
2012 Ajijola OA, Vaseghi M, Mahajan A, Shivkumar K. Bilateral cardiac sympathetic denervation: why, who and when? Expert Review of Cardiovascular Therapy. 10: 947-9. PMID 23030281 DOI: 10.1586/erc.12.93  0.8
2012 Boyle NG, Shivkumar K. Epicardial interventions in electrophysiology. Circulation. 126: 1752-69. PMID 23027811 DOI: 10.1161/CIRCULATIONAHA.111.060327  0.8
2012 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. 5: 1010-116. PMID 22923270 DOI: 10.1161/CIRCEP.112.972836  0.8
2012 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. 35: 1294-301. PMID 22897649 DOI: 10.1111/j.1540-8159.2012.03499.x  0.8
2012 Bradfield JS, Buch E, Shivkumar K. Interventions to decrease the morbidity and mortality associated with implantable cardioverter-defibrillator shocks. Current Opinion in Critical Care. 18: 432-7. PMID 22889870 DOI: 10.1097/MCC.0b013e328357ae68  0.8
2012 Mathuria N, Tung R, Shivkumar K. Advances in ablation of ventricular tachycardia in nonischemic cardiomyopathy. Current Cardiology Reports. 14: 577-83. PMID 22843484 DOI: 10.1007/s11886-012-0302-x  0.8
2012 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. 60: 628-36. PMID 22818076 DOI: 10.1016/j.jacc.2012.05.022  0.8
2012 Tung R, Buch E, Shivkumar K. Catheter ablation of atrial fibrillation. Circulation. 126: 223-9. PMID 22777665 DOI: 10.1161/CIRCULATIONAHA.111.048421  0.8
2012 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. 23: 1185-90. PMID 22734591 DOI: 10.1111/j.1540-8167.2012.02387.x  0.8
2012 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. 35: e127-30. PMID 22564003 DOI: 10.1111/j.1540-8159.2011.03121.x  0.8
2012 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. 35: 1021-34. PMID 22510160 DOI: 10.1111/j.1540-8159.2012.03382.x  0.8
2012 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 : the Official Journal of the Heart Rhythm Society. 9: 1303-9. PMID 22465457 DOI: 10.1016/j.hrthm.2012.03.052  0.8
2012 Ajijola OA, Shivkumar K. Neural remodeling and myocardial infarction: the stellate ganglion as a double agent. Journal of the American College of Cardiology. 59: 962-4. PMID 22381433 DOI: 10.1016/j.jacc.2011.11.031  0.8
2012 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. 302: H1838-46. PMID 22345568 DOI: 10.1152/ajpheart.01106.2011  0.8
2012 Mathuria N, Buch E, Shivkumar K. Pleuropericardial fistula formation after prior epicardial catheter ablation for ventricular tachycardia. Circulation. Arrhythmia and Electrophysiology. 5: e18-9. PMID 22334435 DOI: 10.1161/CIRCEP.111.968420  0.8
2012 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. 5: 264-72. PMID 22333344 DOI: 10.1161/CIRCEP.111.967976  0.8
2012 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, et al. 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. 31: 247-56. PMID 22298868  0.8
2012 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. 59: 91-2. PMID 22192676 DOI: 10.1016/j.jacc.2011.09.043  0.8
2012 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. 9: 51-6. PMID 22135184 DOI: 10.1007/s11897-011-0075-3  0.8
2012 Discepolo W, Buch E, Shivkumar K. How to target postablation perimitral flutter: valve isthmus or PV triggers? Journal of Cardiovascular Electrophysiology. 23: 145-6. PMID 22049914 DOI: 10.1111/j.1540-8167.2011.02205.x  0.8
2012 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. 35: 97-9. PMID 21819431 DOI: 10.1111/j.1540-8159.2011.03188.x  0.8
2012 Kneller J, Shivkumar K, Tung R. Assessment of His-Purkinje reserve: What is the mechanism of block? Heart Rhythm. 9: 465-466. PMID 21126603 DOI: 10.1016/j.hrthm.2010.11.042  0.8
2012 Tung R, Mathuria N, Michowitz Y, Yu R, Buch E, Bradfield J, Mandapati R, Wiener I, Boyle N, Shivkumar K. Response to letter regarding article, "functional pace-mapping responses for identification of targets for catheter ablation of scar-mediated ventricular tachycardia" Circulation: Arrhythmia and Electrophysiology. 5: e101. DOI: 10.1161/CIRCEP.112.974626  0.8
2012 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. 4: 425-437. DOI: 10.1016/j.ccep.2012.05.004  0.8
2012 Bourke T, Moriarty J, Boyle NG, Shivkumar K. Atrial Fibrillation Ablation: Do We Really Need Preprocedural Imaging? Cardiac Electrophysiology Clinics. 4: 305-315. DOI: 10.1016/j.ccep.2012.05.002  0.8
2012 Mathuria NS, Tung R, Shivkumar K. Localization of the Arrhythmogenic Substrate in Non-ischemic Cardiomyopathy: Combined Endocardial and Epicardial Mapping and Ablation Cardiac Mapping: Fourth Edition. 514-523. DOI: 10.1002/9781118481585.ch46  0.8
2012 Shivkumar K. Management of acute atrial fibrillation in the ed Cardiology Review. 28.  0.8
2011 Mathuria NS, Vaseghi M, Buch E, Shivkumar K. Successful ablation of an epicardial ventricular tachycardia using a surgical ablation tool. Circulation. Arrhythmia and Electrophysiology. 4: e84-6. PMID 22203665 DOI: 10.1161/CIRCEP.111.965467  0.8
2011 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. 44: 694-9. PMID 21917265 DOI: 10.1016/j.jelectrocard.2011.07.030  0.8
2011 Shivkumar K, Narayan SM. Imaging cardiac arrhythmias. Science Translational Medicine. 3: 98fs2. PMID 21885402 DOI: 10.1126/scitranslmed.3002806  0.8
2011 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, et al. A 10-Fr ultrasound catheter with integrated micromotor for 4-D intracardiac echocardiography. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 58: 1478-91. PMID 21768032 DOI: 10.1109/TUFFC.2011.1967  0.8
2011 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, et al. The feasibility of using thermal strain imaging to regulate energy delivery during intracardiac radio-frequency ablation. Ieee Transactions On Ultrasonics, Ferroelectrics, and Frequency Control. 58: 1406-17. PMID 21768025 DOI: 10.1109/TUFFC.2011.1960  0.8
2011 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, et al. The Cardiac Atlas Project--an imaging database for computational modeling and statistical atlases of the heart. Bioinformatics (Oxford, England). 27: 2288-95. PMID 21737439 DOI: 10.1093/bioinformatics/btr360  0.8
2011 Bai R, Biase LD, Shivkumar K, Mohanty P, Tung R, Santangeli P, Carlos LS, Vacca M, Verma A, Khaykin Y, Mohanty S, Burkhardt JD, Hongo R, Beheiry S, Russo AD, et al. Ablation of ventricular arrhythmias in arrhythmogenic right ventricular dysplasia/cardiomyopathy: Arrhythmia-free survival after endo-epicardial substrate based mapping and ablationablation of ventricular arrhythmias in arrhythmogenic right ventricular dysplasia/cardiomyopathy arrhythmia-free survival after endo-epicardial substrate based mapping and ablation Circulation: Arrhythmia and Electrophysiology. 4: 478-485. PMID 21665983 DOI: 10.1161/CIRCEP.111.963066  0.8
2011 Bourke T, Mathuria N, Michowitz Y, Shivkumar K. Hybrid techniques and neuraxial modulation for treatment of ventricular tachycardia Future Cardiology. 7: 273-276. PMID 21627467 DOI: 10.2217/fca.11.15  0.8
2011 Tung R, Boyle NG, Shivkumar K. Catheter ablation of ventricular tachycardia. Circulation. 123: 2284-8. PMID 21606407 DOI: 10.1161/CIRCULATIONAHA.110.989079  0.8
2011 Bradfield J, Buch E, Shivkumar K. Three dissociated rhythms after ablation of an atypical right atrial flutter Journal of Cardiovascular Electrophysiology. 22: 477. PMID 21489018 DOI: 10.1111/j.1540-8167.2010.01934.x  0.8
2011 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. 13: 1180-7. PMID 21486911 DOI: 10.1093/europace/eur106  0.8
2011 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. 16: 449-56. PMID 21451976 DOI: 10.1007/s10741-011-9241-7  0.8
2011 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, ... ... Shivkumar K, et al. Safety and outcomes of cryoablation for ventricular tachyarrhythmias: results from a multicenter experience. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 8: 968-74. PMID 21376835 DOI: 10.1016/j.hrthm.2011.02.038  0.8
2011 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 : the Official Journal of the Heart Rhythm Society. 8: 1060-7. PMID 21354335 DOI: 10.1016/j.hrthm.2011.02.029  0.8
2011 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. 13: 683-8. PMID 21252192 DOI: 10.1093/europace/euq519  0.8
2011 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. 8: 439-447. PMID 21056123 DOI: 10.1016/j.hrthm.2010.10.044  0.8
2011 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. 29: 50-6. PMID 20980115 DOI: 10.1016/j.mri.2010.03.031  0.8
2011 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. 34: 37-46. PMID 20946283 DOI: 10.1111/j.1540-8159.2010.02892.x  0.8
2011 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. 22: 49-56. PMID 20653813 DOI: 10.1111/j.1540-8167.2010.01859.x  0.8
2011 Shackley BS, Nguyen TP, Shivkumar K, Finn PJ, Fishbein MC. Idiopathic massive myocardial calcification: A case report and review of the literature Cardiovascular Pathology. 20: e79-e83. PMID 20598909 DOI: 10.1016/j.carpath.2010.04.004  0.8
2011 Bradfield J, Mathuria N, Tung R, Shivkumar K. Coronary sinus fistula: A reason not to implant a transvenous left ventricular lead Heart Rhythm. 8: 1658. PMID 20433945 DOI: 10.1016/j.hrthm.2010.04.032  0.8
2011 Hyung Seo C, Stephens D, Cannata J, Dentinger A, Lin F, Park S, Wildes D, Thomenius K, Chen P, Nguyen T, Delarama A, Jeong JS, Mahajan A, Shivkumar K, Oralkan O, et al. Regulating energy delivery during intracardiac radiofrequency ablation using thermal strain imaging Ieee International Ultrasonics Symposium, Ius. 1882-1885. DOI: 10.1109/ULTSYM.2011.0470  0.8
2011 Moini A, Nikoozadeh A, Oralkan O, Choe JW, Sarioglu AF, Stephens DN, De La Rama A, Chen P, Chalek C, Dentinger A, Wildes D, Smith LS, Thomenius K, Shivkumar K, Mahajan A, et al. Volumetric intracardiac imaging using a fully integrated CMUT ring array: Recent developments Ieee International Ultrasonics Symposium, Ius. 692-695. DOI: 10.1109/ULTSYM.2011.0168  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 55 Cardiac Electrophysiology: Clinical Case Review. 241-243. DOI: 10.1007/978-1-84996-390-9_55  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 52 Cardiac Electrophysiology: Clinical Case Review. 229-231. DOI: 10.1007/978-1-84996-390-9_52  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 49 Cardiac Electrophysiology: Clinical Case Review. 217-219. DOI: 10.1007/978-1-84996-390-9_49  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 46 Cardiac Electrophysiology: Clinical Case Review. 199-200. DOI: 10.1007/978-1-84996-390-9_46  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 42 Cardiac Electrophysiology: Clinical Case Review. 185-188. DOI: 10.1007/978-1-84996-390-9_42  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 36 Cardiac Electrophysiology: Clinical Case Review. 151-152. DOI: 10.1007/978-1-84996-390-9_36  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 29 Cardiac Electrophysiology: Clinical Case Review. 123-124. DOI: 10.1007/978-1-84996-390-9_29  0.8
2011 Vaseghi M, Boyle NG, Shivkumar K. Case 24 Cardiac Electrophysiology: Clinical Case Review. 101-102. DOI: 10.1007/978-1-84996-390-9_24  0.8
2011 Vaseghi M, Boyle NG, Shivkumar K. Case 20 Cardiac Electrophysiology: Clinical Case Review. 83-84. DOI: 10.1007/978-1-84996-390-9_20  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 15 Cardiac Electrophysiology: Clinical Case Review. 63-64. DOI: 10.1007/978-1-84996-390-9_15  0.8
2011 Buch E, Nakahara S, Vaseghi M, Boyle NG, Shivkumar K. Case 12 Cardiac Electrophysiology: Clinical Case Review. 51-52. DOI: 10.1007/978-1-84996-390-9_12  0.8
2011 Damiano R, Benussi S, Kim YH, Maessen JG, Mair H, Mangino D, Shivkumar K, Edgerton JR. Surgical Approach/Ablation Atrial Fibrillation Ablation, 2011 Update: the State of the Art Based On the Venicechart International Consensus Document. 161-175. DOI: 10.1002/9781119963868.ch11  0.8
2011 Francis J, Bourke T, Shivkumar K. Calming the storm by sympatholysis Indian Pacing and Electrophysiology Journal. 11: 31-33.  0.8
2010 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, et al. Miniaturized ultrasound imaging probes enabled by CMUT arrays with integrated frontend electronic circuits. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 2010: 5987-90. PMID 21097106 DOI: 10.1109/IEMBS.2010.5627580  0.8
2010 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. 5: 430-4. PMID 21087427 DOI: 10.1111/j.1747-0803.2010.00443.x  0.8
2010 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 : the Official Journal of the Heart Rhythm Society. 7: 1817-24. PMID 20682358 DOI: 10.1016/j.hrthm.2010.07.032  0.8
2010 Tung R, Boyle NG, Shivkumar K. Catheter ablation of ventricular tachycardia. Circulation. 122: e389-91. PMID 20644021 DOI: 10.1161/CIRCULATIONAHA.110.963371  0.8
2010 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 : the Official Journal of the Heart Rhythm Society. 7: 1635-43. PMID 20633702 DOI: 10.1016/j.hrthm.2010.07.009  0.8
2010 Mandapati R, Shivkumar K. The autonomic stress of sleep: Sleeping the sleep of death Heart Rhythm. 7: 1075-1076. PMID 20621623 DOI: 10.1016/j.hrthm.2010.05.027  0.8
2010 Vaseghi M, Shivkumar K. Catheter ablation of idiopathic ventricular tachycardia Circulation: Arrhythmia and Electrophysiology. 3: 219-221. PMID 20551420 DOI: 10.1161/CIRCEP.110.957332  0.8
2010 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, ... ... Shivkumar K, et al. Radiofrequency catheter ablation of ventricular arrhythmias in patients with hypertrophic cardiomyopathy: Safety and feasibility Heart Rhythm. 7: 1036-1042. PMID 20493276 DOI: 10.1016/j.hrthm.2010.05.022  0.8
2010 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. 55: 2355-65. PMID 20488307 DOI: 10.1016/j.jacc.2010.01.041  0.8
2010 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. 121: 2255-62. PMID 20479150 DOI: 10.1161/CIRCULATIONAHA.109.929703  0.8
2010 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. 21: 1062-1063. PMID 20455981 DOI: 10.1111/j.1540-8167.2010.01781.x  0.8
2010 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. 7: 389-395. PMID 20185114 DOI: 10.1016/j.hrthm.2009.11.023  0.8
2010 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 : the Official Journal of the Heart Rhythm Society. 7: 413-6. PMID 20097619 DOI: 10.1016/j.hrthm.2009.10.037  0.8
2010 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, ... ... Shivkumar K, et al. Venice Chart International Consensus document on ventricular tachycardia/ventricular fibrillation ablation. Journal of Cardiovascular Electrophysiology. 21: 339-79. PMID 20082650 DOI: 10.1111/j.1540-8167.2009.01686.x  0.8
2010 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 : the Official Journal of the Heart Rhythm Society. 7: 81-7. PMID 19914143 DOI: 10.1016/j.hrthm.2009.09.022  0.8
2010 Ho JK, Nakahara S, Shivkumar K, Mahajan A. Live three-dimensional transesophageal echocardiographic imaging of novel multielectrode ablation catheters. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 7: 570-1. PMID 19875342 DOI: 10.1016/j.hrthm.2009.07.035  0.8
2010 Nikoozadeh A, Oralkan O, 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, et al. Forward-looking intracardiac imaging catheters using fully integrated CMUT arrays Proceedings - Ieee Ultrasonics Symposium. 770-773. DOI: 10.1109/ULTSYM.2010.5935817  0.8
2010 Stephens DN, Cannata J, Seo CH, Jeong JS, Sun E, Cao W, Nikoozadeh A, Oralkan O, De La Rama A, Nguyen T, Dentinger A, Lin F, Park S, Wildes D, Thomenius KE, ... ... Shivkumar K, et al. Ultrasound compatible RF ablation electrode design for catheter based guidance of RF ablation in vivo results with thermal strain imaging Proceedings - Ieee Ultrasonics Symposium. 229-232. DOI: 10.1109/ULTSYM.2010.5935664  0.8
2010 Seo CH, Stephens D, Cannata J, Dentinger A, Lin F, Park S, Wildes D, Thomenius K, Chen P, Nguyen T, Delarama A, Jeong JS, Mahajan A, Shivkumar K, Oralkan O, et al. Monitoring radiofrequency catheter ablation using thermal strain imaging Proceedings - Ieee Ultrasonics Symposium. 1364-1367. DOI: 10.1109/ULTSYM.2010.5935567  0.8
2010 Lee W, Griffin W, Wildes D, Buckley D, Topka T, Chodakauskas T, Langer M, Calisti S, Bergstoel S, Malacrida JP, Lanteri F, Gelly JF, Maffre J, McDaniel B, Shivkumar K, et al. A 10 Fr ultrasound catheter with integrated micromotor for 4D intracardiacechocardiography Proceedings - Ieee Ultrasonics Symposium. 833-836. DOI: 10.1109/ULTSYM.2010.5935541  0.8
2010 Shivkumar K, Boyle NG. Preface Cardiac Electrophysiology Clinics. 2: xv-xvi. DOI: 10.1016/j.ccep.2009.12.001  0.8
2010 Buch E, Nakahara S, Boyle NG, Shivkumar K. Epicardial Catheter Ablation of Atrial Fibrillation Cardiac Electrophysiology Clinics. 2: 113-120. DOI: 10.1016/j.ccep.2009.11.002  0.8
2010 Fonseca CG, Backhaus M, Do Chung J, Tao W, Medrano-Gracia P, Cowan BR, Hunter PJ, Finn JP, Shivkumar K, Lima JAC, Bluemke DA, Kadish AH, Lee DC, Young AA. The cardiac atlas project: Rationale, design and procedures Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). 6364: 36-45. DOI: 10.1007/978-3-642-15835-3_4  0.8
2010 Bradfield J, Shivkumar K. Review: Early treatment of a cardiovascular event with nitrates or ACE inhibitors reduces short-term mortality - Commentary Annals of Internal Medicine. 152: JC2-3.  0.8
2009 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. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 2009: 1913-7. PMID 19963529 DOI: 10.1109/IEMBS.2009.5332380  0.8
2009 Shivkumar K, Buch E, Boyle NG. Nonpharmacologic management of atrial fibrillation: role of the pulmonary veins and posterior left atrium. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 6: S5-S11. PMID 19959144 DOI: 10.1016/j.hrthm.2009.07.030  0.8
2009 Tung R, Shivkumar K. Ripple mapping: Making electroanatomic mapping user-friendly Heart Rhythm. 6: 1763-1764. PMID 19959126 DOI: 10.1016/j.hrthm.2009.10.015  0.8
2009 Shivkumar K, Tung R. Improving Our Understanding of Epicardial Ventricular Tachycardia in Nonischemic Cardiomyopathy Journal of the American College of Cardiology. 54: 809-811. PMID 19695458 DOI: 10.1016/j.jacc.2009.05.033  0.8
2009 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. 30: 2254-65. PMID 19561339 DOI: 10.1093/eurheartj/ehp267  0.8
2009 Buch E, Tung R, Shehata M, Shivkumar K. Alternating cycle length during supraventricular tachycardia: What is the mechanism? Journal of Cardiovascular Electrophysiology. 20: 1071-1073. PMID 19460077 DOI: 10.1111/j.1540-8167.2009.01485.x  0.8
2009 Buch E, Nakahara S, Shivkumar K. Diagnostic maneuver during narrow-complex tachycardia: What is the arrhythmia mechanism? Heart Rhythm. 6: 716-717. PMID 19332390 DOI: 10.1016/j.hrthm.2008.06.006  0.8
2009 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 : the Official Journal of the Heart Rhythm Society. 6: 503-9. PMID 19324311 DOI: 10.1016/j.hrthm.2009.01.005  0.8
2009 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. 108: 1185-92. PMID 19299784 DOI: 10.1213/ane.0b013e3181951a65  0.8
2009 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 Pace - Pacing and Clinical Electrophysiology. 32: 340-345. PMID 19272064 DOI: 10.1111/j.1540-8159.2008.02242.x  0.8
2009 Hijazi ZM, Shivkumar K, Sahn DJ. Intracardiac echocardiography during interventional and electrophysiological cardiac catheterization Circulation. 119: 587-596. PMID 19188519 DOI: 10.1161/CIRCULATIONAHA.107.753046  0.8
2009 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. 28: 207-15. PMID 19168770 DOI: 10.7863/jum.2009.28.2.207  0.8
2009 Boyle NG, Shivkumar K. Atrial fibrillation in congestive heart failure: current management. Cardiology Clinics. 27: 79-93, viii-ix. PMID 19111766 DOI: 10.1016/j.ccl.2008.09.016  0.8
2009 Nikoozadeh A, Oralkan O, Gencel M, Choe JW, Stephens DN, De La Rama A, Chen P, Thomenius K, Dentinger A, Wildes D, Shivkumar K, Mahajan A, O'Donnell M, Sahn D, Khuri-Yakub PT. Forward-looking volumetric intracardiac imaging using a fully integrated CMUT ring array Proceedings - Ieee Ultrasonics Symposium. DOI: 10.1109/ULTSYM.2009.5441600  0.8
2009 Singhal A, Shivkumar K, Huda A, Thomas MA. Current status of cardiac MR spectroscopy Progress in Nuclear Magnetic Resonance Spectroscopy. 54: 255-277. DOI: 10.1016/j.pnmrs.2008.10.004  0.8
2004 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. 10: 241-7. PMID 15133362 DOI: 10.1023/B:JICE.0000026919.49412.93  0.8
2001 Shivkumar K, Weiss JN. Atrial fibrillation: from cells to computers. Cardiovascular Research. 52: 171-3. PMID 11684063  0.92
1997 Shivkumar K, Deutsch NA, Lamp ST, Khuu K, Goldhaber JI, Weiss JN. Mechanism of hypoxic K loss in rabbit ventricle. The Journal of Clinical Investigation. 100: 1782-8. PMID 9312178 DOI: 10.1172/JCI119705  0.8
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