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(Circulation. 1971;43:I-105.)
© 1971 American Heart Association, Inc.

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Emergency Aortocoronary Bypass for Impending or Extending Myocardial Infarction

J. DONALD HILL M.D.¹; WELLIAM J. KERTH M.D.¹; JOHN J. KELLY M.D.¹; ARTHUR SELZER M.D.¹; WILLIAM ARMSTRONG M.D.¹; ROBERT W. POPPER M.D.¹; MANLY F. LANGSTON M.D.¹; KEITH E. COHN M.D.¹

¹ From the Departments of Cardiovascular Surgery and Cardiology, Presbyterian Hospital, and the Institute of Medical Sciences of the Pacific Medical Center, San Francisco, California 94115.

Emergency coronary arteriography and aortocoronary bypass were successfully performed in three patients with preinfarction angina. Four patients with impending extension of a recent infarction died during or after aortocoronary bypass surgery. Aortocoronary bypass may improve angina and prevent infarction in selected instances of preinfarction angina. In patients with recent infarction and impending extension the risk of surgery appears to be prohibitively high.

Key Words: Arrhythmia • Ventricular tachycardia • Circulatory assist • Angina pectoris