Wenckebach's periods or alternating Wenckebach's periods during 4:1 atrioventricular block?

Agustin Castellanos, Jorge Diaz, Alberto Interian, Robert J. Myerburg

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


This article deals with the tracings of a patient having episodes of atrial flutter with 4:1 atrioventricular (AV) block increasing to 8:1 AV block. This phenomenon was attributed to the coexistence of 3-level block due to transverse dissociation with 2:1 AV block in the most proximal level, or first level as well as in the second level coexisting with a Wenckebach's period in the most distal, or third level. It is suggested that perhaps the term Wenckebach's periods during progression of 4:1 AV block best describes this arrhythmia so as to maintain the term alternating Wenckebach's periods only to those occurring when 2:1 block increases to higher degrees of AV block.

Original languageEnglish (US)
Pages (from-to)157-159
Number of pages3
JournalJournal of Electrocardiology
Issue number2
StatePublished - Apr 2005


  • Alternating Wenckebach's periods
  • Atrial flutter
  • Atrioventricular block
  • Transverse dissociation
  • Wenckebach's periods

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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