Left Bundle Branch Block and Intermittent Type A Preexcitation

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Presentation transcript:

Left Bundle Branch Block and Intermittent Type A Preexcitation Pablo Denes, M.D., Paul Goldfinger, M.D., Kenneth M. Rosen, M.D., F.C.C.P. CHEST Volume 68, Issue 3, Pages 356-358 (September 1975) DOI: 10.1378/chest.68.3.356 Copyright © 1975 The American College of Chest Physicians Terms and Conditions

Figure 1 Intermittent type A preexcitation with complete left bundle branch block. Electrocardiographic leads, V1-V6 are shown. QRS complexes showing type A preexcitation are labeled A, and those showing complete left bundle branch block, LB. Note that the QRS complexes with preexcitation are narrower and the left bundle branch pattern is masked. CHEST 1975 68, 356-358DOI: (10.1378/chest.68.3.356) Copyright © 1975 The American College of Chest Physicians Terms and Conditions