Results 91 to 100 of about 543,312 (350)

The Electroanatomic Volume of the Left Atrium as a Determinant of Recurrences in Patients with Atrial Fibrillation After Pulmonary Vein Isolation: A Prospective Study

Biomedicines
Background/Objectives: Catheter ablation for atrial fibrillation (AF) is a well-established therapeutic approach for maintaining sinus rhythm, though its efficacy remains suboptimal in certain patients.
Amaia Martínez León, David Testa Alonso, María Salgado, Ruth Álvarez Velasco, Minel Soroa, Daniel Gracia Iglesias, David Calvo   +6 more
doaj   +1 more source

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

Mechanisms of spontaneous Ca ²⁺ release-mediated arrhythmia in a novel 3D human atrial myocyte model: II. Ca ²⁺ -handling protein variation [PDF]

, 2022
X. Zhang, Charlotte Smith, Stefano Morotti, Andrew G. Edwards, Daisuke Sato, William E. Louch, Haibo Ni, Eleonora Grandi   +7 more
openalex   +1 more source

Seipin‐Mediated Lipid Droplet Formation in Cardiomyocytes Ameliorates Cardiac Ischemia/Reperfusion Injury

Advanced Science, EarlyView.
Lipid droplets (LDs) protect the heart against lipotoxicity in cardiac ischemia/reperfusion (I/R) injury; however, they are insufficient to prevent cardiomyocyte death. Seipin plays a central role in the insufficient formation of LDs, subsequent lipotoxicity, and myocardial injury during cardiac I/R injury.
Changyun Liu, Junxia Zhang, Yusi Chen, Geng Shen, Yufei Han, Zihao Zhou, Jinxuan Chen, Xuya Kang, Huilin Qu, Jiaxin Duanmu, Haibao Shang, Yingjia Li, Wei Huang, Yan Zhang   +13 more
wiley   +1 more source

Nearly fatal ventricular arrhythmia following pacemaker implantation in a young female with complete heart block

Journal of Arrhythmia, 2019
This case concerns a 24‐year‐old female who developed malignant ventricular tachyarrhythmia a few weeks after pacemaker implantation for complete heart block.
Hussam Ali, Pierpaolo Lupo, Sara Foresti, Guido De Ambroggi, Riccardo Mantovani, Carmine De Lucia, Ilaria Passarelli, Luigi De Ambroggi, Riccardo Cappato   +8 more
doaj   +1 more source

Incidence and predictors of premature ventricular complexes following catheter ablation for atrial fibrillation [PDF]

, 2017
BACKGROUND: Atrial fibrillation (AF) is the most common cardiac arrhythmia, and previous studies have focused on the epidemiology, mechanisms and risk factors for this global disease (Ryder and Benjamin 1999). Various studies have examined the mechanism,
Harvey, Joshua
core  

A Systemic Selective Modified mRNA Delivery Platform for Preventing Chemotherapy‐Induced Cardiotoxicity

Advanced Science, EarlyView.
In Yoo and Mainkar et al., we present a minimally invasive, CM‐selective modRNA delivery system encapsulated in lipid nanoparticles for intravenous (IV) administration. This platform enables selective cardiac translation of therapeutic modRNA but suppresses expression in off‐target tissues, including tumors.
Jimeen Yoo, Gayatri Mainkar, Matteo Ghiringhelli, Bernardo Gindri Dos Santos, Magdalena M. Żak, Keerat Kaur, Ann Anu Kurian, Matthew Adjmi, Segev Sharon, Eftychia Markopoulou, Lucia Žigová, Daniela Hirsch, Sydney Pessin, Rachel Hanan, Juan Luis Escano Abreu, Niki Brisnovali, Nicole Dubois, Leigh Goedeke, Mengcheng Shen, Lior Zangi   +19 more
wiley   +1 more source

Cardiac Arrhythmia and Geomagnetic Activity [PDF]

, 2006
Background: The purpose of this paper is a review of a number of studies considering links between life threatening cardiac arrhythmias, sudden cardiac death (SCD) and the level of environmental physical activity factors like geomagnetic activity (GMA)
Stoupel, E
core   +2 more sources

Treatment of Electrical Storm with Amiodarone in Brugada Syndrome- an Unexpected Protective Effect [PDF]

, 2013
We are reporting on a 53 year old man with proven Brugada syndrome and ICD implantation for resuscitation in context of polymorphic VT. After recurrent arrhythmia he was treated with Amiodarone.
Lambiase, PD, Novak, J
core   +1 more source

Promoting Autophagy Mitigates Stress‐Induced Remodeling in Patient iPSC‐CMs with the Phospholamban R9C Mutation

Advanced Science, EarlyView.
The Phospholamban (PLN) R9C mutation reduces SERCA2a binding, increasing calcium recycling and baseline contractility. However, the excess of free PLN promotes pentamer formation, limiting phosphorylation and blunting β‐adrenergic signaling. Under cardiac stress, enhanced functional demands overwhelm proteostasis in PLN R9C cells, leading to misfolded ...
Qi Yu, Yawei Shen, Robert J. Barndt, Karim Sallam, Ying Tang, Cameron E. Brown, Xiao Li, Stephen Y. Chan, Joseph C. Wu, Qing Liu, Haodi Wu   +10 more
wiley   +1 more source