THOMAS B. BEACH; JACK G. GRACEY; ROBERT H. PETER, M.D.; PAUL W. GRUNENWALD
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Ten patients with left bundle branch block (LBBB) without signs or symptoms of underlying heart disease were carefully studied clinically and by cardiac catheterization including selective coronary arteriography. Catheterization studies were normal, and coronary arteriography showed no evidence of significant coronary obstructive disease in any patient. The possible causes of LBBB in asymptomatic individuals are discussed. Left bundle branch block discovered in an incidental manner may not connote serious underlying heart disease.
BEACH TB, GRACEY JG, PETER RH, et al. Benign Left Bundle Branch Block. Ann Intern Med. 1969;70:269–276. doi: 10.7326/0003-4819-70-2-269
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Published: Ann Intern Med. 1969;70(2):269-276.
Cardiology, Rhythm Disorders and Devices.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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