Body surface and intracardiac recordings in a patient with Wolff-Parkinson-White syndrome (type A) with complete infra-His bundle block

B. Portillo, R. J. Sung, A. Castellanos

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Electrocardiograms, vectorcardiograms and His bundle electrograms were recorded in a patient with Wolff-Parkinson-White syndrome (type A) who developed complete infra-Hisian block and advanced A-V block in the Kent bundle. The atrial impulses reaching the ventricles exclusively through the Kent bundle produced QRS complexes and vector loops showing diffuse (leftward initial and rightward pre-terminal) delays and slurrings. These abnormalities were not due to Wolff-Parkinson-White type A coexisting with right bundle branch block, but reflected the activation sequence characteristic of arrival of excitation; spontaneous impulse formation; or electrical stimulation, at the postero-superior wall of the left ventricle. Intracardiac recordings were a complement to body surface recordings in the study of Wolff-Parkinson-White syndrome complicated by A-V conduction disturbances.

Original languageEnglish (US)
Pages (from-to)219-221
Number of pages3
JournalCHEST
Volume73
Issue number2
DOIs
StatePublished - Jan 1 1978

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine
  • Cardiology and Cardiovascular Medicine

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