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Hrayr Karagueuzian Ph.D.
Professor of Medicine
Office:  1630 MRL
Phone:  (310) 82
5-9360
Fax:  (310) 206-5777
Email:  hkaragueuzian@mednet.ucla.edu
 

Curriculum Vitae

Research Interest

My research interest is to study of the mechanisms and control of atrial and ventricular fibrillation in animal models using single cell microelectrode recordings and optical mapping techniques of cardiac activation.

Representative Publications

Ohara T, Qu, Z. Lee M-H, Ohara K, Ohara K, Omichi C, Mandel WJ, Chen P-S, < Karagueuzian HS. Increased vulnerability to inducible atrial fibrillation caused by partial cellular uncoupling with heptanol. Am J Physiol , 283:H1116-1122, 2002

Yashima M, Miyauchi Y, Cao J-M, Kim Y-H, Mandel WJ, Chen P-S, Karagueuzian HS: The mechanism of the probabilistic nature of ventricular defibrillation threshold. Am J Physiol, 284: H249-255, 2003

Swissa M, Ohara T, Lee M-H, Kaul S, M.D. Shah PK, Chen P-S, Karagueuzian HS: Sildenafil-nitric oxide donor combination promotes ventricular tachyarrhythmias in the swine right ventricle. Am J Physiol, Heart & Circulatory Physiology, 282: H1787-1792, 2002

Miyauchi Y, Ohara K, Ohara T, Fishbein MC, Zhou S, Lee MH, Mandel WJ, Chen P-S, Karagueuzian HS: Altered atrial electrical restitution and sympathetic hyperinnervation in hearts with chronic left ventricular myocardial infarction. Implications to atrial fibrillation. Circulation, 108:360-366, 2003

Miyauchi Y, Fishbein MC, Karagueuzian HS: Electrical current-induced atrial and pulmonary vein action potential duration shortening and repetitive activity. Am J Physiol, Heart & Circulatory Physiology, 287:H178-186, 2004

Miyauchi, M, Qu Z, Miyauchi Y, Zhou S-M, Pak H, Mandel WJ, Fishbein MC, Chen P-S, Karagueuzian HS: Chronic nicotine in hearts with healed ventricular myocardial infarction promotes atrial flutter that resembles typical human atrial flutter. Am J Physiol, Heart & Circulatory Physiology, 288:H2878-H2886, 2005

Miyauchi Y, Hayashi H, Miyauchi M, Okuyama Y, Mandel WJ, Chen P-S, Karagueuzian HS: Heterogeneous pulmonary vein myocardial cell repolarization: implications for reentry and triggered activity. Heart Rhythm, 2:1339-1345, 2005 (Figure 1 of this paper made the cover of the Journal and an editorial accompanied the article)

Ono N, Hayashi H, Kawase A, Lin S-F, Li H, Weiss JN, Chen P-S, Karagueuzian HS: Spontaneous atrial fibrillation initiated by triggered activity near the pulmonary veins in aged rats subjected to glycolytic inhibition. Am J Physiol (Heart & Circulatory Physiology), 292:H639-H648, 2007. (Figure 9 of this paper made the cover of the Journal)

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