HemalMNayakMDFACC, FHRS

PubMed

• A rare presentation of Ebstein's anomaly: left-sided accessory pathway and tricuspid stenosis.
  Kathryn H Schwartzman, Jack R Stines, Hemal M Nayak, Utkarsh Kohli> ;Journal of Interventional Cardiac Electrophysiology. 2024 Mar 14
• Novel Phenotypic Effects of a Rare(c.2482C>T) Mutation.
  Schwartzman, K., Nayak, H., Kohli, U.> ;JACC. Case Reports. 2024 Feb 21
• Wide QRS tachycardia: What is the mechanism?
  Krishna Kishore Umapathi, Hemal M Nayak, Utkarsh Kohli> ;Pacing and Clinical Electrophysiology. 2024 Mar 1
• 1 citations
  Rehabilitation of an existing device implant pocket using a biologic extracellular matrix envelope.
  Ankur Srivastava, Hemal M Nayak> ;Heartrhythm Case Reports. 2023 Nov 1
• 2 citations
  Vasovagal Responses to Human Monomorphic Ventricular Tachycardia: Hemodynamic Implications From Sinus Rate Analysis.
  Margarida Pujol-Lopez, Jeanne Du Fay de Lavallaz, Pooja Rangan, Andrew Beaser, Zaid Aziz, Gaurav A Upadhyay, Hemal Nayak, J Peter Weiss, Michael Zawaneh, Rong Bai, Wil...> ;Journal of the American College of Cardiology. 2023 Sep 12
• 6 citations
  Atrioesophageal Fistula Rates Before and After Adoption of Active Esophageal Cooling During Atrial Fibrillation Ablation.
  Javier Sanchez, Christopher Woods, Jason Zagrodzky, Jose Nazari, Matthew J Singleton, Amir Schricker, Annie Ruppert, Babette Brumback, Benjamin Jenny, Charles Athill, ...> ;JACC. Clinical Electrophysiology. 2023 Dec 1
• 3 citations
  Identification of Human Ventricular Tachycardia Demarcated by Fixed Lines of Conduction Block in a 3-Dimensional Hyperboloid Circuit.
  Takuro Nishimura, Nathan Shatz, J Peter Weiss, Michael Zawaneh, Rong Bai, Andrew D Beaser, Gaurav A Upadhyay, Zaid A Aziz, Hemal M Nayak, Dalise Y Shatz, Shinsuke Miya...> ;Circulation. 2023 Oct 31
• Variations in Atrial Fibrillation Ablation Use and Charges in a Modern Cohort of Medicare Beneficiaries.
  Amro Aglan, Ayman R Fath, Aditya Khurana, Jumanah Aboasbeh, Abdullah S Eldaly, Abdulbaril Olagunju, Hemal M Nayak, Wadid, M.> ;The American Journal of Cardiology. 2023 Sep 1
• 3 citations
  Impact of wideband cardiac magnetic resonance on diagnosis, decision-making and outcomes in patients with implantable cardioverter defibrillators.
  Hena N Patel, Shuo Wang, Swati Rao, Amita Singh, Luis Landeras, Stephanie A Besser, Spencer Carter, Satish Mishra, Takuro Nishimura, Dalise Y Shatz, Roderick Tung, Hem...> ;European Heart Journal. Cardiovascular Imaging. 2023 Jan 23
• 1 citations
  Feasibility and safety of a transvenous lead extraction program implementation in South America: Challenges, early outcomes, and global collaboration-A single-center e...
  Pablo Salazar, Armando Pérez-Silva, Alex Villablanca, Francisco Bello, Osvaldo Pérez, Andrew Beaser, Hemal Nayak> ;Heart Rhythm O2. 2022 Dec 1
• 13 citations
  Correlation between sinus rhythm deceleration zones and critical sites for localized reentrant atrial flutter: A retrospective multicenter analysis.
  Christopher E Woods, Amir A Schricker, Hemal Nayak, Ramesh Hariharan, Brady Stevens, Agatha Kwasnik, Nathan Shatz, Lucas Suchomel, Ryan Moskovitz, Jonathan Salcedo, Ro...> ;Heart Rhythm O2. 2022 Jun 1
• 2 citations
  Population-Level Impact of the Guidelines Update on Patient Selection and Outcomes After Cardiac Resynchronization Therapy.
  Ahmad B Allaw, Suneet Mittal, Faisal M Merchant, Stephanie A Besser, Andrew D Beaser, Zaid Aziz, Cevher Ozcan, Hemal M Nayak, Roderick Tung, Gaurav A Upadhyay> ;JACC. Clinical Electrophysiology. 2022 May 1
• 2 citations
  2021 HRS Educational Framework for Clinical Cardiac Electrophysiology.
  David S Frankel, Brynn E Dechert-Crooks, Kristen Campbell, Christopher V DeSimone, Susan Etheridge, Margaret Harvey, Rachel Lampert, Hemal M Nayak, Walid I Saliba, Jul...> ;Heart Rhythm O2. 2022 Apr 1
• Direct subxiphoid pericardioscopic visualization of epicardial ventricular tachycardia mapping and ablation.
  Andrew Y Chen, Aalap Narichania, David Onsager, Hemal M Nayak, Roderick Tung> ;Heart Rhythm O2. 2022 Feb 1
• 6 citations
  Empiric ablation of polymorphic ventricular tachycardia/fibrillation in the absence of a mappable trigger: Prospective feasibility and efficacy of pacemap matching to ...
  Pablo Salazar, Andrew D. Beaser, Gaurav A. Upadhyay, Zaid Aziz, Stephanie A. Besser, Dalise Y. Shatz, Hemal M. Nayak, Roderick Tung> ;Heart Rhythm. 2021 Oct 30
• 7 citations
  Impact of physiological pacing on functional mitral regurgitation in systolic dysfunction: Initial echocardiographic remodeling findings after His bundle pacing
  Gaurav A. Upadhyay, Michael P. Henry, Davide Genovese, Parth V. Desai, Jonathan Lattell, Hannah E. Wey, Stephanie A. Besser, Zaid Aziz, Andrew D. Beaser, Cevher Ozcan,...> ;Heart Rhythm O2. 2021 Oct 1
• 3 citations
  Atypical pathogens associated with cardiac implantable electronic device infections.
  Utkarsh Kohli, Aniruddha Hazra, Ahmed Shahab, Andrew D. Beaser, Zaid Aziz, Gaurav A. Upadhyay, Cevher Ozcan, Roderick Tung, Hemal M. Nayak> ;Pacing and Clinical Electrophysiology. 2021 Jul 9
• 5 citations
  Double loop ventricular tachycardia activation patterns with single loop mechanisms: Asymmetric entrainment responses during "pseudo-figure-of-eight" reentry.
  Takuro Nishimura, Gaurav A. Upadhyay, Zaid Aziz, Andrew D. Beaser, Dalise Y. Shatz, Hemal M. Nayak, Roderick Tung> ;Heart Rhythm. 2021 Sep 1
• 2 citations
  PR interval prolongation is significantly associated with aortic root abscess: An age- and gender-matched study.
  Utkarsh Kohli, Shirlene Obuobi, Karima Addetia, Takeyoshi Ota, Hemal M. Nayak> ;Annals of Noninvasive Electrocardiology. 2021 May 3
• 4 citations
  A novel familial SCN5A exon 20 deletion is associated with a heterogeneous phenotype.
  Utkarsh Kohli, Chenni S. Sriram, Hemal M. Nayak> ;Journal of Electrocardiology. 2021 Apr 23
• Isolated left bundle branch block in the young: case reports and review of literature
  Utkarsh Kohli, Chenni S. Sriram, Hemal M. Nayak> ;Pacing and Clinical Electrophysiology. 2021 Apr 16
• Resting electrocardiographic differences in ventricular repolarization between children and young adults with congenital heart disease and those with a structurally no...
  Utkarsh Kohli, Hemal M. Nayak, Angela Romme, Hoang H. Nguyen> ;Pacing and Clinical Electrophysiology. 2021 Apr 9
• 6 citations
  Spatial and transmural properties of the reentrant ventricular tachycardia circuit in arrhythmogenic right ventricular cardiomyopathy: Simultaneous epicardial and endo...
  Ruhong Jiang, Takuro Nishimura, Andrew D. Beaser, Zaid Aziz, Gaurav A. Upadhyay, Dalise Y. Shatz, Hemal M. Nayak, Hongtao Liao, Xianzhang Zhan, Fa Po Chung, Yumei Xue,...> ;Heart Rhythm. 2021 Jun 1
• 24 citations
  Circuit Determinants of Ventricular Tachycardia Cycle Length
  Takuro Nishimura, Gaurav A. Upadhyay, Zaid Aziz, Andrew D. Beaser, Dalise Y. Shatz, Hemal M. Nayak, Roderick Tung> ;Circulation. 2021 Jan 19
• 5 citations
  Patient Profiles in the Utilization of the CanGaroo® Envelope
  Hemal M. Nayak, Andrew D. Beaser, Zaid Aziz> ;Cureus. 2021 Jan 14
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Journal Articles

• Consequences of retained defibrillator and pacemaker leads following heart transplantation � an underrecognized problem  
  Holzhauser L, Teruhiko I, Nayak HM, Sarswat N, Kim G, Raikhelkar J, Kalantari S, Onsager D, Song T, Ota T, Jeevanandam V, Sayer G, Uriel N, Journal of Cardiac Failure, 1/1/2018
• Characterization of ventricular tachycardia after left ventricular assist device implantation as destination therapy: a single center experience  
  Moss JD, Flatley E, Beaser A, Shin J, Nayak, HM, Upadhyay G, Burke MC, Jeevanandam V, Uriel, N, Tung R, J Am Coll Cardiol EP, 1/1/2017
• Impact of race and gender on clinical outcomes of catheter ablation in patients with atrial fibrillation  
  Bukari A, Nayak HM, Aziz Z, Deshmukh A, Tung R, Ozcan C, Pacing and Clinical Electrophysiology, 1/1/2017
• High resolution mapping of the triangle of Koch: Spatial heterogeneity of fast pathway atrionodal connections  
  Chua K, Upadhyay G, Lee E, Aziz Z, Beaser A, Ozcan C, Broman M, Nayak HM, Tung R, Heart Rhythm, 1/1/2017
• Cardiac implantable electronic device infections: Rise of resistant pathogens  
  Nayak HM, JACC-EP � Invited editorial, 1/1/2016
• Late presentation of constrictive pericarditis after limited epicardial ablation for inappropriate sinus tachycardia  
  Oesterle A, Singh A, Balkhy H, Husain A, Moyer D, Tung R and Nayak HM, Heart Rhythm Case Reports, 1/1/2016
• "Left ventricular" AV nodal reentrant tachycardia: case report and review of the literature  
  Green J, Aziz Z, Nayak HM, Upadhyay GA, Moss JD, Tung R, Heart Rhythm Case Reports, 1/1/2016
• QRS complex fragmentation and survival following left ventricular assist  
  Thomas IC, Cork DP, Bhatia AK, Nayak HM, Burke MC, Moss JD, IJC Heart & Vasculature, 1/1/2015
• 3D echocardiographic locations of implantable device leads and mechanism of associated tricuspid regurgitation  
  Mediratta A, Addetia K, Yamat M, Moss JD, Nayak HM, Burke MC, Weinert L, Maffessanti F, Jeevanandam V, Mor-Avi V, Lang RM, JACC Cardiovasc Imaging, 1/1/2014
• ICD lead parameters, performance and adverse events following continuous-flow LVAD implantation  
  Thomas IC, Cork DP, Levy A, Nayak HM, Beshai JF, Burke MC, Moss JD, Pacing Clin Electrophysiol, 1/1/2014
• Out of service lead: abnormal presentation at follow-up  
  Hansen JC, Moss JD, Nayak HM, Beshai JF, Heart Rhythm, 1/1/2013
• Atrial support pacing in heart failure: Results from the multicenter PEGASUS CRT trial  
  Martin DO, Gold MR, Lai PL, Murphy AL, Nayak HM, Villareal RP, Weiner S, Christman SA, Kraus SM, Stolen KQ, Day JD, Journal of Cardiovascular Electrophysiology, 1/1/2012
• Ventricular tachycardia storm after initiation of biventricular pacing: incidence, clinical characteristics, management and outcome  
  Nayak HM, Verdino RJ, Russo AM, Gerstenfeld EP, Hsia H, Lin D, Dixit S, Cooper JM, Callans DJ, Marchlinski FE, Journal of Cardiovascular Electrophysiology, 1/1/2008
• Comparison of cool tip versus 8-mm tip catheter in achieving isolation of pulmonary veins for long-term control of atrial fibrillation: a prospective randomized pilot ...  
  Dixit S, Gerstenfeld EP, Callans DJ, Cooper J, Lin D, Russo AM, Verdino RJ, Patel VV, Kimmel SE, Ratcliffe SJ, Hsia HH, Nayak HM, Ren JF, Marchlinski FE, Journal of Cardiovascular Electrophysiology, 1/1/2006
• Proper management of pericardial tamponade as a late complication of implantable cardiac device placement  
  Polin GM., Zado E, Nayak HM, Cooper JM, Russo AM, Dixit S, Lin D, Marchlinski FE, Verdino RJ, American Journal of Cardiology, 1/1/2006
• Increased intensity of anticoagulation may reduce risk of thrombus during atrial fibrillation ablation procedures in patients with spontaneous echo contrast  
  Ren JF, Marchlinski FE, Callans DJ, Gerstenfeld EP, Dixit S, Lin D, Nayak HM, Hsia HH, Journal of Cardiovascular Electrophysiology, 1/1/2005
• Electroanatomic substrate and outcome of catheter ablative therapy for ventricular tachycardia in the setting of right ventricular cardiomyopathy  
  Marchlinski FE, Zado E, Dixit S, Gerstenfeld E, Nayak HM, Russo A, Pulliam W, Circulation, 1/1/2004
• Advantages and pitfalls of combining device-based and pharmacologic therapies for the treatment of ventricular arrhythmias: observations from a tertiary referral center  
  Rajawat YS, Patel VV, Gerstenfeld EP, Nayak HM, Marchlinksi FE, Pacing and Clinical Electrophysiology, 1/1/2004
• Implantable cardioverter defibrillator events in patients with asymptomatic nonsustained ventricular tachycardia: Is device implantation justified  
  Russo AM, Nayak HM, Verdino R, Springman J, Gerstenfeld E, Hsia H, Marchlinski FE, Pacing and Clinical Electrophysiology, 1/1/2003
• Concomitant device and drug therapy: Current trends, potential benefits, and adverse interactions  
  Marchlinski FE, Zado ES, Deely MP, Saligan J, Ashar M, Nayak HM, American Journal of Cardiology, 1/1/1999
• Interpretation and application of stored electrograms  
  Nayak HM, Marchlinski FE, Cardiac Electrophysiol Review, 1/1/1998
• Late complications in patients with pectoral defibrillator implants with transvenous defibrillator lead systems: high incidence of insulation breakdown  
  Mehta D, Nayak HM, Singson M, Chao S, Pe E, Camunas JL, Gomes JA, Pacing and Clinical Electrophysiology, 1/1/1998
• Uncommon atrial flutter: Characteristics, mechanisms and results of ablative therapy  
  Gomes JA, Santoni-Rugiu F, Mehta D, Langan MN, Marx SO, Nayak HM, Pacing and Clinical Electrophysiology, 1/1/1998
• New pre-excitation following cardiac transplant  
  Alexis JD, Nayak HM, Kushwaha S, Lansman SL, Mehta D, Gass A, Int. J. Cardiology, 1/1/1998
• Prevalence of atopy in an inner-city asthmatic population  
  Sperber K, Kendler D, Yu LM, Nayak HM, Pizzimenti A, Mount Sinai Journal of Medicine, 1/1/1993
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Books/Book Chapters

• Cardiac Arrhythmias 
  Chapter: Ablation of unstable ventricular tachycardia. 
  Page 433 - 450Marchlinski FE, Lin D, Nayak HM, Russo AM, Hsia H, Dixit S, Gerstenfeld EP, Callans DJ, Pulliam RW, Siddique SS, Del Castillo S, Zado EEditors: A. Raviele.Springer-Verlag, Italia2003
• CEPR edition on the ICD. 
  Chapter: Interpretation and application of stored electrograms. 
  Patel VV, Nayak HM, Marchlinski FE2001

Abstracts/Posters

• Techniques and approaches for mapping and radiofrequency catheter ablation of supraventricular and ventricular arrhythmias.
  Nayak HM, Mehta D, Proceedings of the VI Asian-Pacific Symposium on Cardiac Pacing and Electrophysiology, Monduzzi Editore S.p.A., Bologna, Italy, 1/1/1997

Other

• An Open Letter (Nayak letter on cybersecurity of pacemakers and defibrillators) 
  Nayak HM
  www.medsec.com/blog
• FDA and DHS communications as a direct result of research performed by Nayak and MedSec on medical device cybersecurity 
  Nayak HM
  http://www.fda.gov/MedicalDeviceSafety/AlertsandNotices/ucm535843.htm
• Patient education video on nonvalvular atrial fibrillation (Preparing for Your Visit) 
  Nayak HM
  eliquis.bmscustomerconnect.com