“Pseudo‐endless Loop” Tachycardia in an AV Universal (DDD) Pacemaker

SHLOMO AMIKAM, CAROLYN ANDREWS, SEYMOUR FURMAN

Research output: Contribution to journalArticle

4 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)129-131
Number of pages3
JournalPacing and Clinical Electrophysiology
Volume7
Issue number1
DOIs
StatePublished - Jan 1984

Keywords

  • dual‐chamber pacing
  • endless loop tachycardia
  • pacemaker‐mediated arrhythmias

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of '“Pseudo‐endless Loop” Tachycardia in an AV Universal (DDD) Pacemaker'. Together they form a unique fingerprint.

  • Cite this