Nadim Nasir, Jr., MD

Assistant Professor of Clinical Cardiology, Institute for Academic Medicine
Assistant Clinical Member, Research Institute
Houston Methodist


B.S., Biology, University of Houston, Houston, TX
M.D., University of Texas Southwestern, Dallas, TX

Residency, Internal Medicine, Parkland Memorial Hospital, Dallas V.A. Medical Center, Dallas, TX
Fellowship, Cardiovascular Diseases and Electrophysiology, Baylor College of Medicine, Houston, TX

Description of Research

Cardiac rhythm, atrial fibrillation, ablation.

Description of Research
Dr. Nasir has been involved in numerous clinical trials at the Methodist Hospital expanding the base of scientific knowledge in the arena of cardiac rhythm disorders and has been Principal or Co-investigator in several recent trials examining ablation techniques for therapy of atrial fibrillation including the use of cryotherapy for therapy of Afib and along with Dr. Valderrabano, laser balloon therapy for treatment of atrial fibrillation.


Cellular Evidence of Reverse Cardiac Remodeling Induced by Cardiac Resynchronization Therapy
Orrego, CM, Nasir, N, Oliveira, GH, Flores-Arredondo, JH, Cordero-Reyes, AM, Loebe, M, Youker, KA & Torre-Amione, G 2011, Congestive Heart Failure, vol 17, no. 3, pp. 140-146. DOI:

Tissue characterization by cardiovascular magnetic resonance aids in the evaluation of a patient with ventricular tachycardia.
Cheema, O, Nasir, N, Attar, M, Nagueh, S, Zoghbi, WA & Shah, DJ 2011, Houston Methodist DeBakey Cardiovascular Journal, vol 7, no. 2, pp. 46-47.

Incubation alone is adequate as a culturing technique for cardiac rhythm management devices
Viola, GM, Mansouri, MD, Nasir, N & Darouiche, RO 2009, Journal of Clinical Microbiology, vol 47, no. 12, pp. 4168-4170. DOI:

QT prolongation with migraine medications
Evans, RW, Atriham, AR & Nasir, N 2003, Headache, vol 43, no. 7, pp. 809-810. DOI:

Case report: Dr. Lecter's convulsive syncope.
Evans, RW & Nasir, N 2001, MedGenMed [electronic resource] : medscape general medicine, vol 3, no. 5.

Shocks as predictors of survival in patients with implantable cardioverter-defibrillators
Pacifico, A, Ferlic, LL, Cedillo-Salazar, FER, Nasir, N, Doyle, TK & Henry, PD 1999, Journal of the American College of Cardiology, vol 34, no. 1, pp. 204-210. DOI:

Conscious sedation with combined hypnotic agents for implantation of implantable cardioverter-defibrillators
Pacifico, A, Cedillo-Salazar, FR, Nasir, N, Doyle, TK & Henry, PD 1997, Journal of the American College of Cardiology, vol 30, no. 3, pp. 769-773. DOI:

Effect of preexisting epicardial patch electrodes on defibrillation thresholds of unipolar defibrillators
Nasir, N, Cedillo-Salazar, FR, Doyle, TK, Henry, PD & Pacifico, A 1997, American Journal of Cardiology, vol 79, no. 10, pp. 1408-1409. DOI:

Spontaneous ventricular tachycardia treated by antitachycardia pacing
Nasir, N, Pacifico, A, Doyle, TK, Earle, NR, Hardage, ML & Henry, PD 1997, American Journal of Cardiology, vol 79, no. 6, pp. 820-822. DOI:

Long-term follow-up of cardioverter-defibrillator implanted under conscious sedation in prepectoral subfascial position
Pacifico, A, Wheelan, KR, Nasir, N, Wells, PJ, Doyle, TK, Johnson, SA & Henry, PD 1997, Circulation, vol 95, no. 4, pp. 946-950.

Therapy of sustained ventricular arrhythmias with amiodarone: Prediction of efficacy with serial electrophysiologic studies
Nasir, N, Swarna, US, Boahene, KA, Doyle, TK & Pacifico, A 1996, Journal of Cardiovascular Pharmacology and Therapeutics, vol 1, no. 2, pp. 123-132. DOI:

Characterization of spontaneous recurrent ventricular arrhythmias detected by electrogram-storing defibrillators in sudden cardiac death survivors with no inducible ventricle arrhythmias at baseline electrophysiologic testing
Zaim, S, Zaim, B, Rottman, J, Mendoza, I, Nasir, N & Pacifico, A 1996, American Heart Journal, vol 132, no. 2 I, pp. 274-279. DOI:

Evaluation of intravenous lidocaine for the termination of sustained monomorphic ventricular tachycardia in patients with coronary artery disease with or without healed myocardial infarction
Nasir, N, Taylor, A, Doyle, TK & Pacifico, A 1994, The American Journal of Cardiology, vol 74, no. 12, pp. 1183-1186.

Usefulness of Holter monitoring in predicting efficacy of amiodarone therapy for sustained ventricular tachycardia associated with coronary artery disease
Nasir, N, Doyle, TK, Wheeler, SH & Pacifico, A 1994, The American Journal of Cardiology, vol 73, no. 8, pp. 554-558.