http://www.acc.org/Feed?clinicalTopicID=229f7074-fb00-4bea-a844-8ef25973206d Clinical Topic Feed: EP Basic Science en /Latest-in-Cardiology/Journal-Scans/2026/03/24/18/20/New-CCG-Isolated-Left-to-Right-Shunt-Lesions-in-Pediatric-Patients Outpatient management of isolated left-to-right shunt lesions in pediatric patients with congenital heart disease is the focus of a new 2026 ACC Concise Clinical Guidance report. 1774533600000 Articles and Stories /Latest-in-Cardiology/Journal-Scans/2026/03/18/17/30/HeartSync-LBBP-and-PhysioSync-HF-Comparing-Conduction-System-Pacing-vs-BiVP-in-Patients-With-HFrEF-and-LBBB Two studies recently published in JAMA Cardiology present conflicting findings in comparing conduction system pacing (CSP), such as left bundle-branch pacing (LBBP), and biventricular pacing (BiVP) in patients with heart failure with reduced ejection fraction (HFrEF) and left bundle-branch block (LBBB). 1773855960000 Articles and Stories /Latest-in-Cardiology/Articles/2026/03/04/14/11/eagles-eye-view-04mar2025 In this week’s View, Dr. Eagle looks at increased one-year mortality in younger patients undergoing transcatheter aortic valve replacement (TAVR). 1772636400000 Articles and Stories /Latest-in-Cardiology/Journal-Scans/2026/02/26/18/18/20-Year-Outcomes Twenty years after pulmonary vein isolation (PVI) during catheter ablation, stable sinus rhythm was maintained in a quarter of patients with symptomatic drug-refractory paroxysmal atrial fibrillation (PAF), including those taking antiarrhythmic drugs and those who had multiple ablation procedures, according to findings from a study published Feb. 17 in JACC: Clinical Electrophysiology. 1772131380000 Articles and Stories /Latest-in-Cardiology/Articles/2026/02/02/11/35/Asymptomatic-Wolff-Parkinson-White-Pattern-in-Athletes The preparticipation examination (PPE) is an invaluable tool in the care of athletes. Screening electrocardiograms (ECGs), although controversial, are often included in the PPE to improve the sensitivity of identifying cardiac pathology relevant to sudden cardiac arrest SCA) in athletes. 1770046260000 Articles and Stories /Latest-in-Cardiology/Articles/2026/01/01/01/JACC-in-a-Flash Featured topics and Editors' Picks from all of ACC's JACC Journals. 1769001060000 Articles and Stories /Latest-in-Cardiology/Journal-Scans/2025/12/17/15/00/Mechanisms-Causing-AV-Block Among patients undergoing TAVR, the characteristics and mechanisms causing atrioventricular (AV) conduction block during the procedure differed from those after the procedure, according to a study published Dec. 10 in JAMA Cardiology. 1765996440000 Articles and Stories /Latest-in-Cardiology/Journal-Scans/2025/12/10/14/27/Is-LBBAP-Feasible In patients with cardiac sarcoidosis (CS), left bundle branch area pacing (LBBAP) is feasible and provides stable long-term lead performance, according to a single-center retrospective study published Nov. 21 in JACC: Clinical Electrophysiology. 1765377600000 Articles and Stories /Latest-in-Cardiology/Articles/2025/09/01/01/JACC-in-a-Flash Featured topics and Editors' Picks from all of ACC's JACC Journals. 1756772160000 Articles and Stories /Latest-in-Cardiology/Journal-Scans/2025/08/20/16/12/CSPACE-Is-CSP-Superior-to Conduction system pacing (CSP) is superior compared with right ventricular septal pacing (RVsP) in achieving improved clinical outcomes in patients with atrioventricular (AV) block, according to the CSPACE study published Aug. 18 in JACC. These findings support the broadening of the indication of CSP as an upfront pacing technique for patients with AV block. 1755706320000 Articles and Stories