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PubMed · 15080584

A "multisite" atrioventricular block.

Berardo Sarubbi·Barbara Mercurio·Valentino Ducceschi·Maria Giovanna Russo·Raffaele Calabrò
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Abstract

A 6-year-old child, operated for a perimembranous ventricular septal defect, underwent an electrophysiologic study for the presence of first degree atrioventricular (AV) block and bifascicular block with episodes of type 1 and type 2 second degree AV block. Electrophysiologic study showed a considerable infra-His conduction delay (HV interval 170 ms) and spontaneous phases of infra-His type 1 second degree AV block. During incremental atrial pacing supra-His type 1 second degree AV block and 2:1 infra-His AV block were simultaneously observed and this condition persisted unmodified despite the intravenous injection of atropine. The block distal to the His bundle was considered functional.

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ChildEchocardiographyElectrocardiography, AmbulatoryElectrophysiologic Techniques, CardiacHeart BlockHeart Conduction SystemHeart Septal Defects, VentricularHumansMalePacemaker, ArtificialCase ReportsJournal Article

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Berardo Sarubbi, Barbara Mercurio, Valentino Ducceschi, Maria Giovanna Russo, Raffaele Calabrò. 2004. A "multisite" atrioventricular block.. https://pubmed.ncbi.nlm.nih.gov/15080584/

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