Results 21 to 30 of about 1,581,906 (408)

An inappropriately–appropriate ICD therapy: What is the mechanism and what interventions can be done?

Clinical Case Reports, 2023
Key Clinical Message R‐wave double counting is a rare cause of ventricular oversensing that can lead to inappropriate shocks. Optimizing device programming is essential for the avoidance of subsequent inappropriate therapies.
Athanasios Saplaouras, Panagiotis Mililis, Ourania Kariki, George Bazoukis, Athena Batsouli, Vasileios Antonakos, Stylianos Dragasis, Ilias G. Patsiotis, Konstantinos P. Letsas, Michael Efremidis   +9 more
doaj   +1 more source

Long-Term prognosis of radiofrequency catheter ablation for atrial fibrillation with different subtypes of heart failure in the era of ablation index guidance

Frontiers in Cardiovascular Medicine, 2022
BackgroundThe long-term outcomes of ablation index (AI)-guided radiofrequency catheter ablation (RFCA) on atrial fibrillation (AF) and different subtypes of heart failure (HF) remain unknown.
Yu Qiao, Zhen Zhao, Xiang Cai, Yulong Guo, Mingpeng Fu, Ke Liu, Jinrui Guo, Tao Guo, Guodong Niu   +8 more
doaj   +1 more source

Andersen-Tawil syndrome: report of 3 novel mutations and high risk of symptomatic cardiac involvement. [PDF]

, 2014
IntroductionAndersen-Tawil syndrome (ATS) is a potassium channelopathy affecting cardiac and skeletal muscle. Periodic paralysis is a presenting symptom in some patients, whereas, in others, symptomatic arrhythmias or prolongation of QT in ...
Bieganowska, Katarzyna, Bienias, Piotr, Kaminska, Anna, Kostera-Pruszczyk, Anna, Lee, Hsien-Yang, Miszczak-Knecht, Maria, Ploski, Rafal, Potulska-Chromik, Anna, Pruszczyk, Piotr, Ptáček, Louis J, Quinn, Emily, Szczałuba, Krzysztof   +11 more
core   +2 more sources

Calcium Handling Defects and Cardiac Arrhythmia Syndromes

Frontiers in Pharmacology, 2020
Calcium ions (Ca2+) play a major role in the cardiac excitation-contraction coupling. Intracellular Ca2+ concentration increases during systole and falls in diastole thereby determining cardiac contraction and relaxation.
K. Kistamás, R. Veress, B. Horváth, T. Bányász, P. Nanasi, D. Eisner   +5 more
semanticscholar   +1 more source

Modeling the Heart as a Communication System [PDF]

, 2014
Electrical communication between cardiomyocytes can be perturbed during arrhythmia, but these perturbations are not captured by conventional electrocardiographic metrics.
Aguilar-Rodríguez, José, Ashikaga, Hiroshi, Garland, Joshua, Gorsky, Shai, Lusczek, Elizabeth, Marquitti, Flávia Maria Darcie, Thompson, Brian, Wu, Degang   +7 more
core   +2 more sources

Cardiac safety of tiotropium in patients with cardiac events: a retrospective analysis of the UPLIFT® trial. [PDF]

, 2015
BackgroundTiotropium is an anticholinergic bronchodilator for symptom relief and reducing exacerbations with an established safety profile in patients with chronic obstructive pulmonary disease (COPD).
Decramer, Marc, Leimer, Inge, Metzdorf, Norbert, Tashkin, Donald P   +3 more
core   +1 more source

A common cardiac sodium channel variant associated with sudden infant death in African Americans, SCN5A S1103Y. [PDF]

, 2006
Thousands die each year from sudden infant death syndrome (SIDS). Neither the cause nor basis for varied prevalence in different populations is understood.
Bowers, Peter N, Chen, Weidong, Goldstein, Steve AN, Kittles, Rick A, Liu, Qianyong, Morgan, Thomas, Plant, Leigh D, State, Matthew W, Zhang, Tingting   +8 more
core   +2 more sources

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

ICD Outcome in Pediatric Cardiomyopathies

Journal of Cardiovascular Development and Disease, 2022
Background: Pediatric patients with cardiomyopathies are at risk of malignant arrhythmias and sudden cardiac death (SCD). An ICD may prevent SCD. The aim of this study was to evaluate ICD implantation outcomes, and to compare transvenous and subcutaneous
Massimo Stefano Silvetti, Ilaria Tamburri, Marta Campisi, Fabio Anselmo Saputo, Ilaria Cazzoli, Nicoletta Cantarutti, Marianna Cicenia, Rachele Adorisio, Anwar Baban, Lucilla Ravà, Fabrizio Drago   +10 more
doaj   +1 more source

Mechanisms of cardiac arrhythmias [PDF]

Journal of Arrhythmia, 2015
AbstractBlood circulation is the result of the beating of the heart, which provides the mechanical force to pump oxygenated blood to, and deoxygenated blood away from, the peripheral tissues. This depends critically on the preceding electrical activation.
openaire   +6 more sources