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Ventriculoatrial Block and His-His Changes During Supraventricular Tachycardia: Diagnostic and Mechanistic Implications

Overview
Journal JACC Case Rep
Specialty Cardiology & Vascular Diseases
Date 2023 Jan 27
PMID 36704060
Authors
Christopher X Wong
Satoshi Higuchi
Koichi Nagashima
Yoshiaki Kaneko
Edward P Gerstenfeld
Melvin M Scheinman
Affiliations
Soon will be listed here.
Abstract

Supraventricular tachycardia (SVT) with ventriculoatrial (VA) block can represent a diagnostic challenge. We present a case of SVT where His-His interval shortening was repeatedly observed during episodes of VA block. This novel observation is more diagnostically suggestive of atrioventricular nodal re-entrant tachycardia, as opposed to orthodromic re-entry using a nodofascicular or nodoventricular pathway where a constant His-His is recorded during episodes of VA block. ().

Citing Articles

SVT quest: The adventure diagnosing narrow QRS tachycardia.

Nagashima K, Michaud G, Ho R, Okumura Y J Arrhythm. 2024; 40(4):767-785.

PMID: 39139886 PMC: 11317754. DOI: 10.1002/joa3.13112.

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