Localization of A-V conduction defects in man by recording of the his bundle electrogram

Onkar S. Narula, Lawrence Sanford Cohen, Philip Samet, John W. Lister, Benjamin Scherlag, Frank J. Hildner

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

His bundle electrograms were recorded in 20 patients. Conduction times from atrium to His bundle (A-H time) and His bundle to ventricle (H-V time) were measured and the sites of delay or block were localized to the proximal or distal A-V junction. On progressively increasing the atrial rate by atrial pacing, the A-H time lengthened, while the H-V time remained constant. Premature atrial beats usually resulted in prolongation of the A-H time only. In some instances, premature atrial beats also resulted in prolongation of the H-V time and aberrant ventricular conduction (change in configuration of the QRS complex). In patients with first degree heart block during sinus rhythm the A-H time was prolonged and the H-V time was either normal or prolonged. In higher degrees of heart block, the block was localized either in the proximal or distal A-V junction.

Original languageEnglish
Pages (from-to)228-237
Number of pages10
JournalThe American journal of cardiology
Volume25
Issue number2
DOIs
StatePublished - Jan 1 1970
Externally publishedYes

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Cardiac Electrophysiologic Techniques
Atrial Premature Complexes
Bundle of His
Heart Block

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Narula, O. S., Cohen, L. S., Samet, P., Lister, J. W., Scherlag, B., & Hildner, F. J. (1970). Localization of A-V conduction defects in man by recording of the his bundle electrogram. The American journal of cardiology, 25(2), 228-237. https://doi.org/10.1016/0002-9149(70)90583-7

Localization of A-V conduction defects in man by recording of the his bundle electrogram. / Narula, Onkar S.; Cohen, Lawrence Sanford; Samet, Philip; Lister, John W.; Scherlag, Benjamin; Hildner, Frank J.

In: The American journal of cardiology, Vol. 25, No. 2, 01.01.1970, p. 228-237.

Research output: Contribution to journalArticle

Narula, OS, Cohen, LS, Samet, P, Lister, JW, Scherlag, B & Hildner, FJ 1970, 'Localization of A-V conduction defects in man by recording of the his bundle electrogram', The American journal of cardiology, vol. 25, no. 2, pp. 228-237. https://doi.org/10.1016/0002-9149(70)90583-7
Narula, Onkar S. ; Cohen, Lawrence Sanford ; Samet, Philip ; Lister, John W. ; Scherlag, Benjamin ; Hildner, Frank J. / Localization of A-V conduction defects in man by recording of the his bundle electrogram. In: The American journal of cardiology. 1970 ; Vol. 25, No. 2. pp. 228-237.
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