Three variants of concealed bigeminy

M N LevyJ R Levy


Long electrocardiographic strips were analyzed from five patients who exhibited periods of typical "concealed bigeminy," i. e., recurrent unifocal extrasystoles which were separated from one another by odd numbers of normally conducted sinus beats. However, in each of these patients, there were periods in which one of three different variants of concealed bigeminy was observed. Three patients displayed an "even number" variant; i. e., there were large numbers of consecutive extrasystoles which were separated exclusively or preponderantly by even rather than by odd numbers of sinus beats. One other patient exhibited an "interpolated extrasystole" variant: those interectopic intervals which were initiated by an interpolated extrasystole contained an even number of sinus beats, whereas all other interectopic intervals contained an odd number. In the fifth patient, the distribution of the numbers of sinus beats separating extrasystoles was such as to suggest a periodic fluctuation between the classical forms of concealed bigeminy and concealed trigeminy; i. e., a "combined bigeminy and trigeminy" variant.


Jan 1, 1976·Journal of Electrocardiology·D M MirvisD A Brody
Oct 1, 1979·Journal of Electrocardiology·M N LevyL Goldberg
Aug 3, 1999·Computer Methods and Programs in Biomedicine·D SapoznikovM S Gotsman
Jul 1, 1978·Pacing and Clinical Electrophysiology : PACE·Y Watanabe
Dec 1, 1977·British Heart Journal·J Armenta
Apr 1, 1983·Journal of Electrocardiology·G J Anderson, M Greenspan
Oct 1, 1985·Journal of Electrocardiology·C M MedeirosR Rodrigues
Oct 31, 2006·Journal of Electrocardiology·Claudia LermaAry L Goldberger
Feb 15, 1986·The American Journal of Cardiology·N Z KerinM N Levy
Nov 1, 1977·The American Journal of Cardiology·R R HopeR Lazzara
Jul 1, 1977·Journal of Electrocardiology·M N LevyI Eisenstein
Feb 1, 1977·American Heart Journal·M N LevyN Kerin
Apr 1, 1977·Journal of Electrocardiology·J K BissettN Schmitt
Nov 1, 1986·The American Journal of Cardiology·G OretoL Schamroth
Mar 1, 1978·American Heart Journal·S Kinoshita
Jun 13, 2020·Frontiers in Physiology·Mark G HoogendijkTamas Szili-Torok


Feb 1, 1973·The New England Journal of Medicine·G K Moe, C Mendez
Sep 1, 1971·The American Journal of Cardiology·J Han
Nov 1, 1974·The American Journal of Cardiology·M H LeeH Zieske
Oct 1, 1971·The American Journal of Cardiology·D H Singer, R E Ten Eick
Jan 1, 1954·Pflügers Archiv : European journal of physiology·W TRAUTWEIN, J DUDEL
Jun 1, 1961·The American Journal of Cardiology·L Schamroth, H J MARRIOTT

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