Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Elyar, Ghafoori"'
Autor:
Nan Hu, Rob S. MacLeod, T. Jared Bunch, Jordan Kump, Derek J. Dosdall, Roya Kamali, Elyar Ghafoori, Ravi Ranjan, Matthias Lange
Publikováno v:
JACC Clin Electrophysiol
OBJECTIVES: This study sought to evaluate atrial fibrillation (AF) ablation outcomes based on scar patterns and contiguous area available for AF wavefronts to propagate. BACKGROUND: The relevance of ablation scar pattern acting as a barrier for elect
Autor:
F. Daniel Ramirez, Jeffrey R. Winterfield, Xinwei Shi, Derrick Chou, Dave Robinson, Nathan Angel, Pratik Shah, Tim Sorrell, Elyar Ghafoori, Annelies Vanderper, Leo Mariappan, Bruno Soré, Jean-Marc Peyrat, Virginie Loyer, Yosuke Nakatani, Hubert Cochet, Pierre Jaïs
Publikováno v:
Heart rhythm. 19(5)
Conventional contact-based electroanatomic mapping is poorly suited for rapid or dynamic ventricular arrhythmias. Whole-chamber charge density (CD) mapping could efficiently characterize complex ventricular tachyarrhythmias and yield insights into th
Autor:
Ravi Ranjan, Elyar Ghafoori, Roya Kamali, Eugene Kwan, Kennosuke Yamashita, Rob MacLeod, Derek Dosdall
Publikováno v:
Computing in cardiology. 46
Regions within the atria with sustained rapid reentrant or focal activity have been defined as a mechanism of persistent atrial fibrillation (AF). However, the mechanism behind the anchoring of these sites and their stability over time is unknown. We
Autor:
Derek J. Dosdall, Elyar Ghafoori, Rob S. MacLeod, Ravi Ranjan, Josh Silvernagel, John Ashton, Kennosuke Yamashita
Publikováno v:
International heart journal. 60(6)
Radiofrequency (RF) ablation results in creation of acute edema which can lead to temporary disruption of electrical propagation.The goal of this study was to find the effective contact force (CF) to minimize edema formation in comparison to the lesi
Autor:
Ravi Ranjan, Darrell J. Swenson, Rob S. MacLeod, Elyar Ghafoori, Josh Blauer, Paul J. Degroot, Gernot Plank, Eugene Kwan, Robert T. Taepke, Edward J. Vigmond
Publikováno v:
Heart rhythm. 17(9)
Background Antitachycardia pacing (ATP) success rates as low as 50% for fast ventricular tachycardias (VTs) have been reported providing an opportunity for improved ATP to decrease shocks. Objective The purpose of this study was to determine how a ne
Autor:
Eugene Kwan, J Coles, Darrell J. Swenson, Jess D. Tate, Ravi Ranjan, Joshua Blauer, Rob S. MacLeod, M Barton, R Taepke, P Degroot, Elyar Ghafoori
Publikováno v:
European Heart Journal. 40
Background Antitachycardia pacing (ATP) for monomorphic VT (MVT) reduces painful defibrillation shocks. Most ICD-treated ventricular arrhythmias are MVT, suggesting an opportunity for improved ATP to decrease shocks. We report on a new algorithm (Yee
Autor:
Derek J. Dosdall, Benjamin A. Steinberg, Kennosuke Yamashita, Ravi Ranjan, Roya Kamali, Rob S. MacLeod, Eugene Kwan, Elyar Ghafoori
Publikováno v:
Journal of cardiovascular electrophysiologyREFERENCES. 31(2)
Background Recent guidelines recommend a 3-month blanking period after atrial fibrillation (AF) ablations, which are based on clinical observation. Our goal was to quantify the timeline of the radiofrequency ablation lesion maturation using serial la
Autor:
Joshua Blauer, David J. Callans, Frederick T. Han, Ravi Ranjan, Carolyn J. Park, Robert C. Blake, Jonathan Chrispin, Adityo Prakosa, Elyar Ghafoori, Patrick M. Boyle, Natalia A. Trayanova, Plamen Nikolov, Hiroshi Ashikaga, Dongdong Deng, Henry R. Halperin, Saman Nazarian, Hermenegild Arevalo, Rob S. MacLeod
Publikováno v:
Nature biomedical engineering
Ventricular tachycardia (VT), which can lead to sudden cardiac death, occurs frequently in patients with myocardial infarction. Catheter-based radiofrequency ablation of cardiac tissue has achieved only modest efficacy, owing to the inaccurate identi
Autor:
Larisa G. Tereshchenko, David S. Siscovick, Nona Sotoodehnia, Scott D. Solomon, Elsayed Z. Soliman, Elyar Ghafoori, Sunil K. Agarwal, Muammar M. Kabir, Alfred E. Buxton, Tor Biering-Sørensen, Colleen M. Sitlani, Jonathan W. Waks, Wendy S. Post, Mary L. Biggs, Mark E. Josephson, Charles A. Henrikson
Publikováno v:
Circulation. 133:2222-2234
Background— Asymptomatic individuals account for the majority of sudden cardiac deaths (SCDs). Development of effective, low-cost, and noninvasive SCD risk stratification tools is necessary. Methods and Results— Participants from the Atherosclero
Autor:
Andrew Oehler, Stephen M. Sozio, Michelle M. Estrella, Lauren Hawkins, Maggie Maly, Elyar Ghafoori, Joao A.C. Lima, Rulan S. Parekh, Muammar M. Kabir, Gordon F. Tomaselli, W. H. Linda Kao, Esther Kim, Bernard G. Jaar, Tejal Rami, Larisa G. Tereshchenko, Lucy A. Meoni
Publikováno v:
Journal of the American Society of Nephrology. 27:3413-3420
The single leading cause of mortality on hemodialysis is sudden cardiac death. Whether measures of electrophysiologic substrate independently associate with mortality is unknown. We examined measures of electrophysiologic substrate in a prospective c