Results 31 to 40 of about 1,611,491 (358)

Are Variants Causing Cardiac Arrhythmia Risk Factors in Sudden Unexpected Death in Epilepsy?

Frontiers in Neurology, 2020
Sudden unexpected death in epilepsy (SUDEP) is the most common cause of premature mortality in individuals with epilepsy. Acute and adaptive changes in heart rhythm in epilepsy implicate cardiac dysfunction as a potential pathogenic mechanism in SUDEP ...
Lauren E. Bleakley, M. S. Soh, R. Bagnall, L. Sadleir, Samuel Gooley, C. Semsarian, I. Scheffer, S. Berkovic, C. Reid   +8 more
semanticscholar   +1 more source

Distinct circadian mechanisms govern cardiac rhythms and susceptibility to arrhythmia

Nature Communications, 2021
Electrical activity in the heart exhibits 24-hour rhythmicity, and potentially fatal arrhythmias are more likely to occur at specific times of day. Here, we demonstrate that circadian clocks within the brain and heart set daily rhythms in sinoatrial (SA)
Edward A. Hayter, S. Wehrens, H. V. Van Dongen, Alessandra Stangherlin, S. Gaddameedhi, Elena Crooks, Nicholas J. Barron, L. Venetucci, J. O’Neill, T. Brown, D. Skene, A. Trafford, D. Bechtold   +12 more
semanticscholar   +1 more source

Association of Air Pollution with Increased Incidence of Ventricular Tachyarrhythmias Recorded by Implanted Cardioverter Defibrillators [PDF]

, 2005
Epidemiologic studies have demonstrated a consistent link between sudden cardiac deaths and particulate air pollution. We used implanted cardioverter defibrillator (ICD) records of ventricular tachyarrhythmias to assess the role of air pollution as a ...
David Q. Rich, Diane R. Gold, Douglas W. Dockery, Heike Luttmann-Gibson, Joel D. Schwartz, Mark S. Link, Murray A. Mittleman, Myerburg RJ, Petros Koutrakis, Richard L. Verrier   +9 more
core   +2 more sources

Fasciculoventricular bypass tracts: Electrocardiographic and electrophysiologic features

Journal of Arrhythmia, 2020
Fasciculoventricular accessory pathways are rare variants of preexcitation. The differential diagnosis of fasciculoventricular accessory pathways from other preexcitation variants can be challenging.
Dimitrios Asvestas, George Bazoukis, Panagiotis Mililis, Stelios Dragasis, Athanasia Megarisiotou, Konstantinos Vlachos, Antonios Sideris, Michael Efremidis, Konstantinos P. Letsas   +8 more
doaj   +1 more source

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

CaMKII-dependent regulation of cardiac Na(+) homeostasis. [PDF]

, 2014
Na(+) homeostasis is a key regulator of cardiac excitation and contraction. The cardiac voltage-gated Na(+) channel, NaV1.5, critically controls cell excitability, and altered channel gating has been implicated in both inherited and acquired arrhythmias.
Grandi, Eleonora, Herren, Anthony W
core   +2 more sources

The Emerging Role of Left Bundle Branch Area Pacing for Cardiac Resynchronisation Therapy

Arrhythmia & Electrophysiology Review, 2023
Cardiac resynchronisation therapy (CRT) reduces the risk of heart failure-related hospitalisations and all-cause mortality, as well as improving quality of life and functional status in patients with persistent heart failure symptoms despite optimal ...
Juan Carlos Diaz, Mauricio Duque, Julian Aristizabal, Jorge Marin, Cesar Niño, Oriana Bastidas, Luis Miguel Ruiz, Carlos D Matos, Carolina Hoyos, Daniela Hincapie, Alejandro Velasco, Jorge E Romero   +11 more
doaj   +1 more source

Which diagnostic tests are most useful in a chest pain unit protocol? [PDF]

, 2005
Background The chest pain unit (CPU) provides rapid diagnostic assessment for patients with acute, undifferentiated chest pain, using a combination of electrocardiographic (ECG) recording, biochemical markers and provocative cardiac testing.
Angelini, K., Arnold, J., Goodacre, S., Locker, T., Morris, F.   +4 more
core   +3 more sources

Cardiac Events During Competitive, Recreational, and Daily Activities in Children and Adolescents With Long QT Syndrome

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017
BackgroundThe 2005 Bethesda Conference Guidelines advise patients with long QT syndrome against competitive sports. We assessed cardiac event rates during competitive and recreational sports, and daily activities among treated long QT syndrome patients ...
Kristina D. Chambers, Virginie Beausejour Ladouceur, Mark E. Alexander, Robyn J. Hylind, Laura Bevilacqua, Douglas Y. Mah, Vassilios Bezzerides, John K. Triedman, Edward P. Walsh, Dominic J. Abrams   +9 more
doaj   +1 more source

Automatic Cardiac Arrhythmia Classification Using Combination of Deep Residual Network and Bidirectional LSTM

IEEE Access, 2019
Cardiac arrhythmia is associated with abnormal electrical activities of the heart, which can be reflected by altered characteristics of electrocardiogram (ECG).
Runnan He, Yang Liu, Kuanquan Wang, Na Zhao, Yongfeng Yuan, Qince Li, Henggui Zhang   +6 more
semanticscholar   +1 more source