The incidence of typical and atypical A-V Wenckebach periodicity

Pablo Denes, Lawrence Levy, Alfred Pick, Kenneth M. Rosen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

The classic pattern of the typical WP's consists of (1) progressive lengthening of the P-R intervals with the largest increment occurring in the second conducted beat, (2) progressive decrease in P-R increment which accounts for the progressive shortening of successive R-R intervals, and (3) the pause produced by the nonconducted P-wave is less than two P-P intervals. In 45 patients with atrial pacing-induced Wenckebach periods of A-V conduction, the structure of these was studied with His bundle recordings. Of the 128 periods analyzed exceeding 3:2 A-V conduction ratios, 66 per cent were atypical. In 24 patients with spontaneous WP's of A-V coduction, the electrocardiographic records were studied. Of the 98 periods analyzed exceeding 3:2 A-V conduction ratios, 86 per cent were atypical. WP's with A-V conduction ratios greater than 6:5 were all atypical. Five categories of atypical WP's are described.

Original languageEnglish (US)
Pages (from-to)26-31
Number of pages6
JournalAmerican heart journal
Volume89
Issue number1
DOIs
StatePublished - Jan 1 1975

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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