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Article
October 1978

ECG Diagnosis of Acute Myocardial Infarction in Patients With Pacemakers

Author Affiliations

From the Cardiovascular Institute, Department of Medicine, Michael Reese Hospital and Medical Center, Chicago (Drs Ali and Cohen), and the Division of Cardiology, Northwestern University Medical School, Chicago (Dr Singer).

Arch Intern Med. 1978;138(10):1534-1537. doi:10.1001/archinte.1978.03630350062017
Abstract

Ventricular pacing may mimic or obscure the Q waves of myocardial infarction. Although ST-T changes may occur for other reasons, their presence should alert the physician to the possibility of acute infarction. QRS complexes may be evaluated for infarction if supraventricular beats without left bundle-branch block occur prematurely, as part of a supraventricular tachycardia or as escape beats after inhibition of the artificial pacemaker.

(Arch Intern Med 138:1534-1537, 1978)

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