“Pseudo‐endless Loop” Tachycardia in an AV Universal (DDD) Pacemaker
- 1 January 1984
- journal article
- case report
- Published by Wiley in Pacing and Clinical Electrophysiology
- Vol. 7 (1) , 129-131
- https://doi.org/10.1111/j.1540-8159.1984.tb04869.x
Abstract
A 3‐beat episode of ventricular arrhythmia was recorded in a patient with an AV universal (DDD) pacemaker. This arrhythmia mimicked “endless loop” tachycardia (ELT) because it appeared following a ventricular premature contraction (VPC), its rate approached the preset upper‐rate limit and the regular P waves disappeared during the episode. However, as retrograde conduction was absent ELT could not exist. The mechanism of this arrhythmia was based on a combination of interference by VPC of the regular sequence of this complexes produced by P wave and the pacemaker commitment to maintain an upper rate limit by prolongation of the programmed pacemaker AV delay.Keywords
This publication has 8 references indexed in Scilit:
- Atrio-Ventricular and Ventriculo-Atrial Conduction Times in Patients Undergoing Pacemaker ImplantPacing and Clinical Electrophysiology, 1983
- Endless Loop Tachycardia in an AV Universal (DDD) PacemakerPacing and Clinical Electrophysiology, 1982
- Tachycardias Related to Atrial Synchronous Ventricular PacingPacing and Clinical Electrophysiology, 1982
- Pacemaker Related TachycardiasPacing and Clinical Electrophysiology, 1982
- Arrhythmias of Dual Chamber PacemakersPacing and Clinical Electrophysiology, 1982
- Pacer‐Induced Tachycardia Associated with an Atrial Synchronous Ventricular Inhibited (ASVIP) Pulse GeneratorPacing and Clinical Electrophysiology, 1982