JUAN M. ARANDA, M.D.; BENJAMIN BEFELER, M.D., F.A.C.P.; AGUSTIN CASTELLANOS JR., M.D., F.A.C.P.
The mortality rate associated with incomplete bilateral bundle branch block complicating acute myocardial infarction is high (1, 2). The primary cause of death has been thought to be cardiogenic shock or arrhythmias including complete heart block, asystole, and ventricular fibrillation (2, 3). Although the insertion of a temporary prophylactic pacemaker is still controversial, many authors recommend insertion but are aware that the benefit may be small (1,4-7).
Recent reports have suggested that His' bundle recordings may be of clinical importance in patients with acute myocardial infarction complicated by incomplete bilateral bundle branch block (8). In the series reported by Lie
ARANDA JM, BEFELER B, CASTELLANOS A. His' Bundle Recordings, Bundle Branch Block, and Myocardial Infarction. Ann Intern Med. ;86:106–108. doi: 10.7326/0003-4819-86-1-106
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Published: Ann Intern Med. 1977;86(1):106-108.
Acute Coronary Syndromes, Cardiology, Emergency Medicine, Rhythm Disorders and Devices.
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