Dual AV Nodal Pathways—Vagal Influences on AV Nodal Conduction

M. D. Ezri, S. K. Huang, R. Chhablani, P. Denes*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This 52‐year‐old male presented with syncope and demonstrated two distinct PR intervals on the electrocar‐diogram. Electrophysiologic studies showed dual A V nodal path ways. Right‐sided carotid sinus massage induced prolonged periods of sinus arrest with no change in AH interval. Left‐sided carotid sinus massage produced long AH intervals (slow pathway conduction) with some slowing of sinus rate. Whenever sinus rhythm with slow pathway conduction was observed (long AH) a 20‐30 mmHg drop systolic pressure was seen. Following implantation of an AV sequential pacemaker, the patient has been asymptomatic.

Original languageEnglish (US)
Pages (from-to)697-701
Number of pages5
JournalPacing and Clinical Electrophysiology
Volume6
Issue number3
DOIs
StatePublished - Jan 1 1983

Keywords

  • carotid sinus hypersensitivity, carotid sinus massage

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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