Zobrazeno 1 - 10
of 55
pro vyhledávání: '"John Asta"'
Autor:
Karl Magtibay, Stéphane Massé, John Asta, Marjan Kusha, Patrick F. H. Lai, Mohammed Ali Azam, Andreu Porta‐Sanchez, Shouvik Haldar, Daniel Malebranche, Christopher Labos, D. Curtis Deno, Kumaraswamy Nanthakumar
Publikováno v:
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, Vol 6, Iss 8 (2017)
BackgroundCharacterization of myocardial health by bipolar electrograms are critical for ventricular tachycardia therapy. Dependence of bipolar electrograms on electrode orientation may reduce reliability of voltage assessment along the plane of arrh
Externí odkaz:
https://doaj.org/article/2e25e4c5695b45f7974bf21f7a54ee2c
Autor:
Robert D. Anderson, Stéphane Massé, John Asta, Patrick F.H. Lai, Praloy Chakraborty, Mohammed Ali Azam, Eugene Downar, Kumaraswamy Nanthakumar
Publikováno v:
Pacing and Clinical Electrophysiology. 45:742-751
The role of the Purkinje network in triggering ventricular fibrillation (VF) has been studied; however, its involvement after onset and in early maintenance of VF is controversial.We studied the role of the Purkinje-muscle junctions (PMJ) on epicardi
Autor:
Robert D. Anderson, Jairo Rodriguez Padilla, Christian Joens, Stephane Masse, Abhishek Bhaskaran, Karl Magtibay, Ahmed Niri, John Asta, Patrick Lai, Mohammed Ali Azam, Edward Vigmond, Kumaraswamy Nanthakumar
Publikováno v:
Circulation: Arrhythmia and Electrophysiology. 15
Background: Conventional mapping of focal ventricular arrhythmias relies on unipolar electrogram characteristics and early local activation times. Deep intramural foci are common and associated with high recurrence rates following catheter-based radi
Autor:
Stephane Masse, Ahmed Niri, John Asta, Mohammed Ali Azam, Patrick F.H. Lai, Karl Magtibay, D. Curtis Deno, Kumaraswamy Nanthakumar
Publikováno v:
Heart Rhythm. 19:S9-S10
Autor:
Karl Magtibay, Abhishek Bhaskaran, John Asta, Christopher Labos, Patrick F.H. Lai, Stéphane Massé, Mohammed Ali Azam, Andrew C.T. Ha, Timothy Liang, Kumaraswamy Nanthakumar, Ahmed Niri
Publikováno v:
The Canadian journal of cardiology. 37(11)
Background We developed a multi-axis lead (MaxLead) incorporating four electrodes arranged at the lead-tip organized in an equidistant tetrahedron. Here, we studied MaxLead performance in sensing, pacing and activation wavefront-direction analysis. M
Autor:
Robert A. Rose, Stéphane Massé, John Asta, Patrick F.H. Lai, Mohammed Ali Azam, Marianne Wauchop, Christian Jons, Andreu Porta-Sánchez, Kumaraswamy Nanthakumar
Publikováno v:
Life sciences. 282
Aim An adverse side-effect of Liraglutide (LG), a Glucagon-Like Peptide 1 (GLP1)-analog commonly used in treatments for diabetes, is positive chronotropy. The goal of this study is to investigate on the mechanism of this drug-induced chronotropy and
Autor:
Robert Anderson, Stephane Masse, Hanney Gonna, Melanie Roberta Zammit Burg, Abdullah Al-Shaheen, Patrick F.H. Lai, Mohammed Ali Azam, Karl Magtibay, Ahmed Niri, John Asta, D. Curtis Deno, Kumaraswamy Nanthakumar
Publikováno v:
Heart Rhythm. 19:S193
Autor:
Patrick F.H. Lai, John Asta, Mahmoud M. Bokhari, Mohammed Ali Azam, Andreu Porta-Sánchez, Stéphane Massé, Nima Zamiri, Galina Kichigina, Daoyuan Si, Ping Yang, Kumaraswamy Nanthakumar, Christopher Labos, Huan Sun
Publikováno v:
Journal of Cardiovascular Electrophysiology. 29:1707-1715
Introduction Following long-duration ventricular fibrillation (LDVF), reinitiation of ventricular fibrillation (VF) poses a major challenge during resuscitation. Ryanodine receptor 2 (RyR2) becomes dysfunctional following VF. The relationship between
Autor:
Patrick F.H. Lai, Kumaraswamy Nanthakumar, Ahmed Niri, Menashe B. Waxman, Abhishek Bhaskaran, John Asta, Arulalan Veluppillai, Stéphane Massé, Eugene Downar
Publikováno v:
Heart rhythm. 18(5)
Background Characterizing wavefront generation and impulse conduction in left bundle (LB) has implications for left bundle branch area pacing (LBBAP). Objectives The purpose of this study was to describe the pacing characteristics of LB and to study
Autor:
Kumaraswamy Nanthakumar, Talha Farid, Krishnakumar Nair, Karthikeyan Umapathy, Edward J. Vigmond, John Asta, Robert J. Cusimano, Stéphane Massé, Krishnanand Balasundaram
Publikováno v:
Biomedical Signal Processing and Control. 38:379-387
Ventricular fibrillation (VF) is a lethal cardiac arrhythmia traditionally believed to be chaotic in nature. However, recent research studies have shown that certain events of interest during VF may exhibit local (or regional) organization. These tim