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Left ventriculo-atrial fistula following catheter ablation for Wolff-Parkinson-White syndrome.
Eur Heart J
December 2024
Department of Cardiology, West China Hospital, Sichuan University, 37 Guoxue Road, Chengdu 610041, China.
Endless loop tachycardia among patients with devices having advanced preventive algorithms: A case series and brief review.
Pacing Clin Electrophysiol
September 2024
Department of Cardiology, RTIICS, Kolkata, India.
Article Synopsis
- Endless loop tachycardia (ELT) is a frequent issue in patients with implanted cardiac devices and can cause serious symptoms despite preventive measures.
- * A study analyzed 20 cases of sustained ELT from 4,520 device checkups over four years, finding it usually benign but occasionally harmful, particularly in patients with left ventricular dysfunction.
- * Various factors contributed to ELT, including improper AV synchrony and sensing issues, and adjustments like changing sensitivity settings or PVARP duration were necessary for management.
"On-Off" phenomenon in a case of concealed left lateral atrio-ventricular accessory pathway - What is the mechanism?
Indian Pacing Electrophysiol J
February 2024
DNB, Dept of Cardiology, RTIICS, Kolkata, India.
We report a case of symptomatic supraventricular tachycardia who had absent VA conduction during electrophysiology study. The interesting finding was appearance of VA conduction only at a specific cycle length of ventricular pacing which reproducibly induced a sustained orthodromic re-entrant tachycardia (ORT). We review the literature and conclude that supernormal AP conduction can explain such phenomenon.
View Article and Find Full Text PDFA short RP tachycardia in congenitally corrected transposition. What is the mechanism?
Pacing Clin Electrophysiol
February 2024
Department of Cardiology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
A 51-year-old female with congenitally corrected transposition of great arteries (CCTGA), situs solitus, dextrocardia, atrial septal defect and persistent left superior vena cava underwent electrophysiology study for recurrent palpitations with documented narrow complex, short RP tachycardia. With a catheter in the region of the anterior mitral annulus, a His signal was recorded and HV interval was 35 msec. Tachycardia was induced with a ventricular extrastimulus.
View Article and Find Full Text PDFDouble outlet left atrium: successful management of a rare entity.
Indian J Thorac Cardiovasc Surg
November 2023
Department of Cardiac Anaesthesiology, UN Mehta Institute of Cardiology and Research Center, Ahmedabad, Gujarat India.
Double-outlet left atrium is an extremely rare congenital ventriculo-atrial mal-alignment anomaly, wherein, the left atrium drains into both ventricles, through either a common atrioventricular valve or two separate atrioventricular valves. The only egress from the right atrium is through an inter-atrial communication. We present a 16-month-old male, diagnosed to have double outlet left atrium and describe its surgical management.
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