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Circulation. 1959;20:201-207

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(Circulation. 1959;20:201.)
© 1959 American Heart Association, Inc.

Right Bundle-Branch Block

A Vectorcardiographic and Electrocardiographic Study of Ventricular Septal Defect Following Open-Heart Surgery

JANET DICKENS M.D.1; VLADIR MARANHAO M.D.1; HARRY GOLDBERG M.D.1

1 From the Department of Medicine, Hahnemann Medical College and Hospital, The Brith Sholom Cardiopulmonary Laboratory, and Bailey Thoracic Clinic, Philadelphia, Pa.

Confusion still exists regarding the differentiation between right bundle-branch block and right ventricular hypertrophy. Study of patients after open-heart surgery was helpful in this problem because postoperative changes in electrocardiograms and vectorcardiograms were clearly due to traumatic disturbance of the right bundle branch and not to right ventricular hypertrophy.






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