Open AccessConcealed extrasystoles due to wenckebach conduction delay within the reentry loop
Author(s) -
Kerin N. Z.,
Levy M. N.,
Goldberg L. B.,
Rubenfire M.
Publication year - 1979
Publication title -
clinical cardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.263
H-Index - 72
eISSN - 1932-8737
pISSN - 0160-9289
DOI - 10.1002/clc.4960020308
Subject(s) - reentry , medicine , cardiology , beat (acoustics) , prolongation , rhythm , loop (graph theory) , reentrancy , electrocardiography , coupling (piping) , mathematics , combinatorics , mechanical engineering , physics , computer science , acoustics , engineering , programming language
Long electrocardiographic strips were analyzed from an aged patient whose heart rhythm had periods of unifocal ventricular extrasystoles with fixed coupling intervals. Periods of gradual prolongation of the coupling interval finally led to omission of a ventricular premature beat. This sequence was repetitive and is considered to be the result of reentrant extrasystoles with a 3:2 Wenckebach type of conduction delay within the reentry loop. The mechanism of concealed conduction due to overlong propagation within the reentry loop is discussed.