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http://dx.doi.org/10.1136/heartjnl-2025-326530 | DOI Listing |
J Cardiovasc Electrophysiol
September 2025
Department of Cardiology, Second Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China.
Background And Aims: Ablation for premature ventricular complexes (PVCs) originating from the right ventricular inflow tract (RVIT) is challenging. Few studies have identified the correlation between right ventricular false tendons (RVFTs) and RVIT PVCs. This study aimed to verify RVFTs as arrhythmogenic and electro-anatomical substrates for PVCs, and propose an enlightening mapping and ablation protocol to improve operative efficacy.
View Article and Find Full Text PDFIEEE J Biomed Health Inform
September 2025
Identifying the onset of the QRS complex is an important step for localizing the site of origin (SOO) of premature ventricular complexes (PVCs) and the exit site of Ventricular Tachycardia (VT). However, identifying the QRS onset is challenging due to signal noise, baseline wander, motion artifact, and muscle artifact. Furthermore, in VT, QRS onset detection is especially difficult due to the overlap with repolarization from the prior beat.
View Article and Find Full Text PDFJACC Case Rep
September 2025
Seattle Children's Hospital, University of Washington, Seattle, Washington, USA.
Objective: To demonstrate a detailed procedural guide for right ventricular outflow tract (RVOT) stent placement for palliation of tetralogy of Fallot and pulmonary stenosis in a patient weighing <2 kg.
Key Steps: Obtain wire position with an 0.018-inch Hi-Torque floppy wire in a distal branch pulmonary artery.
JACC Clin Electrophysiol
August 2025
Department of Cardiovascular Medicine, Division of Heart Rhythm Services and the Windland Smith Rice Genetic Heart Rhythm Clinic, Mayo Clinic, Rochester, Minnesota, USA; Department of Molecular Pharmacology and Experimental Therapeutics, Windland Smith Rice Sudden Cardiac Death Genomics Laboratory,
Background: Arrhythmogenic cardiomyopathy (ACM) is characterized by fibrofatty myocardial replacement and increased arrhythmic risk. Although exercise exacerbates desmosomal ACM, the prognostic significance of arrhythmias during exercise stress tests (ESTs) remains unclear.
Objectives: The goal of this study was to determine the impact of ventricular arrhythmia observed during peak exercise and/or recovery EST phases on the risk of major ventricular arrhythmia (MVA) events in patients with desmosomal ACM.
Am J Physiol Heart Circ Physiol
September 2025
Department of Physiology, University of Louisville School of Medicine, Louisville, KY.
Electronic cigarettes (E-cigs) are commonly presumed as a safer alternative to traditional cigarettes despite limited understanding of their health risks. This assumption may lead people, especially those in at-risk groups, to switch from traditional cigarettes to e-cigs, or to use e-cigs as their first form of nicotine consumption. Despite that pregnancy increases susceptibility to adverse cardiac events, a considerable fraction of pregnant women use e-cigs during gestation and postpartum.
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