Results 1 to 10 of about 999,198 (388)

Catheter ablation of idiopathic ventricular fibrillation using the CARTO 3 mapping system

The Egyptian Heart Journal, 2015
Ventricular fibrillation in the absence of structural heart disease represents an important mechanism of sudden cardiac death. It is initiated by triggers originating in the distal Purkinje fibers, arising from either the right or the left ventricle ...
Radu Rosu, Lucian Muresan, Gabriel Cismaru, Mihai Puiu, Marius Andronache, Gabriel Gusetu, Csongor Grosz, Lucia Bica, Olivia Sacaturean, Adina Rosu, Dana Pop, Dumitru Zdrenghea   +11 more
doaj   +1 more source

Ventricular divergence correlates with epicardial wavebreaks and predicts ventricular arrhythmia in isolated rabbit hearts during therapeutic hypothermia [PDF]

, 2020
INTRODUCTION: High beat-to-beat morphological variation (divergence) on the ventricular electrogram during programmed ventricular stimulation (PVS) is associated with increased risk of ventricular fibrillation (VF), with unclear mechanisms.
Chen, Shih-Ann, Haugan, Ketil, Hsieh, Wan-Hsin, Hsieh, Yu-Cheng, Huang, Jin-Long, Larsen, Bjarne D., Li, Cheng-Hung, Liao, Ying-Chieh, Lin, Jiunn-Cherng, Lin, Shien-Fong, Lin, Wei-Wen, Lin, Yenn-Jiang, Lo, Men-Tzung, Tuan, Ta-Chuan, Weng, Chi-Jen, Wu, Tsu-Juey, Yeh, Hung-I   +16 more
core   +1 more source

Atrial fibrillation and electrophysiology in transgenic mice with cardiac-restricted overexpression of FKBP12 [PDF]

, 2019
Cardiomyocyte-restricted overexpression of FK506-binding protein 12 transgenic (αMyHC-FKBP12) mice develop spontaneous atrial fibrillation (AF). The aim of the present study is to explore the mechanisms underlying the occurrence of AF in αMyHC-FKBP12 ...
Ai, Tomohiko, Chang, Po-Cheng, Chen, Hanying, Chen, Peng-Sheng, Fishbein, Michael C., Homsi, Mohamed, Li, Bai-Yan, Lin, Shien-Fong, Liu, Jijia, Liu, Ying, Maruyama, Mitsunori, Pan, Zhenwei, Rubart, Michael, Shou, Weinian, Xiao, Deyong   +14 more
core   +1 more source

Left ventricular diastolic dysfunction and N-terminal probrain sodium-uretic peptid level in patients with atrial fibrillation [PDF]

Medičnì Perspektivi, 2013
In our study 100 consecutive non-valvular permanent atrial fibrillation patients with NYHA I – III heart failure, 43 - 86 years old (65 men and 35 women) were examined. Control group consisted of 30 patients with arterial hypertension and coronary artery
Dzyak G.V., Vasylieva L.I., Sapozhnychenko L.V., Kalashnykova O.S., Anosova N.P., Meleschyk L.V.   +5 more
doaj  

Unexpected Lethal Complication of Ventricular Fibrillation in Symptom Free Variant Angina Pectoris

Journal of Arrhythmia, 2005
We report an unexpected sudden cardiac death due to variant angina complicated by ventricular fibrillation occurring during routine ambulatory electrocardiographic monitoring.
Yashiro Nogami, MD, Bonpei Takase, MD, Ryuichi Kato, MD, Susumu Isoda, MD, Masafumi Shimizu, MD, Isamu Kawase, MD, Fumitaka Ohsuzu, MD, Masayuki Ishihara, PhD, Tadaaki Maehara, MD   +8 more
doaj   +1 more source

Ventricular fibrillation

The American Journal of Cardiology, 1971
Ventricular fibrillation is the most common mechanism of sudden unexpected cardiac death in persons with asymptomatic or symptomatic coronary artery disease. The electrophysiologic mechanisms reviewed in this article include: automaticity of pacemaker fibers, transformation of nonpacemaker into pacemaker fibers, "injury" currents and reentry.
openaire   +3 more sources

Mechanisms of Ventricular Fibrillation

Japanese Heart Journal, 1966
Transition from a regular supraventricular or ventricular mechanism to fibrillation was recorded utilizing 2 ultramicroelectrodes.Fibrillation in the hypothermic dog heart was preceded by asynchronous repolarization of individual fibers. An early premature beat caused incomplete depolarization of some fibers (local block) and irregular spread of ...
Yoshio Watanabe, Leonard S. Dreifus
openaire   +4 more sources

Increased baseline ECG R-R dispersion predicts improvement in systolic function after atrial fibrillation ablation. [PDF]

, 2019
BackgroundAtrial fibrillation (AF) is associated with left ventricular (LV) systolic dysfunction which may improve after AF ablation. We hypothesised that increased ventricular irregularity, as measured by R-R dispersion on the baseline ECG, would ...
Buch, Eric, Chandrashekhar, Y, Koene, Ryan J, Li, Jian-Ming, Mbai, Mackenzi, Seo, Young-Ji, Shivkumar, Kalyanam, Tholakanahalli, Venkatakrishna N   +7 more
core   +1 more source

Explainable artificial intelligence for heart rate variability in ECG signal

Healthcare Technology Letters, 2020
Electrocardiogram (ECG) signal is one of the most reliable methods to analyse the cardiovascular system. In the literature, there are different deep learning architectures proposed to detect various types of tachycardia diseases, such as atrial ...
Sanjana K., Sowmya V., Gopalakrishnan E.A., Gopalakrishnan E.A., Soman K.P.   +4 more
doaj   +1 more source

Potential Application of Pulsed Field Ablation in Ventricular Arrhythmias

Medicina, 2023
Pulsed field ablation (PFA) is a new ablative method for the therapy of arrhythmia. Recent preclinical and clinical studies have already demonstrated the feasibility and safety of PFA for the treatment of atrial fibrillation (AF).
Jie Qiu, Meiyan Dai, Yang Bai, Guangzhi Chen   +3 more
doaj   +1 more source