Rapid atrial pacing-induced infra-His conduction block in children

Ming Lon Young, Henry Gelband, Agustin Castellanos, Grace S. Wolff

Research output: Contribution to journalArticle

Abstract

High right atrial pacing (abrupt initiation and random coupling to the spontaneous rhythm) was performed in 285 pediatric cardiac patients for diagnostic purposes. Nine patients (3%) were found to have pacing-induced infra-His conduction block. In two patients this occurred following a preceding long cycle as well as a preceding short-to-long sequence cycle length change. In five patients block occurred with an abrupt shortening of the coupling H-H interval (in three patients the infra-His block initiated a series of 2:1 infra-His block). In two patients with type II second-degree atrioventricular block the initiating events were not recorded. In one of them, when the rapid atrial pacing was incremented to the same cycle length with infra-His block, the atrioventricular response became 1:1 with normal conduction. These findings of pacing-induced infra-His conduction block can be explained by the normal response of the His-Purkinje system to changes in the preceding cycle lengths, and to the abrupt shortening of the coupling interval.

Original languageEnglish
Pages (from-to)652-658
Number of pages7
JournalAmerican Heart Journal
Volume110
Issue number3
DOIs
StatePublished - Jan 1 1985

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Atrioventricular Block
Pediatrics

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Young, M. L., Gelband, H., Castellanos, A., & Wolff, G. S. (1985). Rapid atrial pacing-induced infra-His conduction block in children. American Heart Journal, 110(3), 652-658. https://doi.org/10.1016/0002-8703(85)90089-4

Rapid atrial pacing-induced infra-His conduction block in children. / Young, Ming Lon; Gelband, Henry; Castellanos, Agustin; Wolff, Grace S.

In: American Heart Journal, Vol. 110, No. 3, 01.01.1985, p. 652-658.

Research output: Contribution to journalArticle

Young, ML, Gelband, H, Castellanos, A & Wolff, GS 1985, 'Rapid atrial pacing-induced infra-His conduction block in children', American Heart Journal, vol. 110, no. 3, pp. 652-658. https://doi.org/10.1016/0002-8703(85)90089-4
Young, Ming Lon ; Gelband, Henry ; Castellanos, Agustin ; Wolff, Grace S. / Rapid atrial pacing-induced infra-His conduction block in children. In: American Heart Journal. 1985 ; Vol. 110, No. 3. pp. 652-658.
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