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PubMed · 6199757

"Pseudo-endless loop" tachycardia in an AV universal (DDD) pacemaker.

S Amikam·C Andrews·S Furman
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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 QRS complexes produced by P wave and the pacemaker commitment to maintain an upper rate limit by prolongation of the programmed pacemaker AV delay.

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ElectrocardiographyHumansMaleMiddle AgedPacemaker, ArtificialTachycardiaCase ReportsJournal Article

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BibTeXRIS

S Amikam, C Andrews, S Furman. 1984. "Pseudo-endless loop" tachycardia in an AV universal (DDD) pacemaker.. https://doi.org/10.1111/j.1540-8159.1984.tb04869.x

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