1 From Baragwanath Hospital and University of the Witwatersrand, Johannesburg, South Africa.
A case is presented of end-diastolic ventricular extrasystoles occurring in bigeminal rhythm during left bundle-branch block; this results in fusion complexes that normalize the bundle-branch block pattern and simulate 2 :1 left bundle-branch block.
© 1962 American Heart Association, Inc.
Simulated 2:1 Left Bundle-Branch Block
Normalization of the Left Bundle-Branch Block Pattern by Ventricular Extrasystoles
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