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Article
November 2, 1963

MEDICAL NEWS

JAMA. 1963;186(5):33-52. doi:10.1001/jama.1963.03710050005002

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Abstract

How frequent are cardiac arrhythmias in patients with acute myocardial infarctions?

Are there certain, special kinds of arrhythmias which precede sudden cardiac death?

Is arrhythmia during the first week following acute myocardial infarction more common than has been believed?

Such questions are of more than academic interest to physicians faced with not only understanding but anticipating and preventing sudden cardiac death. Such understanding and prevention may be possible with a relatively simple cardiac monitoring system developed by Paul M. Zoll, MD, of Beth Israel Hospital in Boston.

After nearly a year of developing and modifying the system, Zoll, who is also associate clinical professor of medicine at Harvard, installed the continuous monitoring system in Beth Israel for use on patients admitted with a diagnosis of acute myocardial infarction.

The system consists of a monitor pacemaker at the patient's bedside attached to cables which transmit the signal from the patient to

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