Second degree His-Purkinje block during his bundle pacing

Agustin Castellanos, Federico Moleiro, Ruey J. Sung, Robert J. Myerburg

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


This report presents, for the first time, clear evidence supporting the occurrence of Wenckebach and 2:1 H-V block during His bundle pacing. The simultaneous recording of various intracardiac electrograms, as well as the comparison of the effects produced by selective His bundle pacing and high right atrial pacing at the same rates, permitted the identification of conduction disturbances located distal to the paced His bundle site. This could be done although one criterion usually required to diagnose selective His bundle pacing (namely, stimulus-V intervals of constant duration) was not present.

Original languageEnglish (US)
Pages (from-to)1110-1114
Number of pages5
JournalThe American Journal of Cardiology
Issue number6
StatePublished - May 22 1978

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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