Abstract
THE ELECTROENCEPHALOGRAM IN CARDIAC ARREST J. Weldon Bellville, M.D. Joseph F. Artusio, Jr., M.D. and Frank Glenn, M.D., New York Primary cardiac arrest has received increasing attention and comment. Because of the nature of the condition and its sudden and often unexpected onset, it is difficult to study and collect objective data. We present here two well-documented instances of cardiac arrest, one of which terminated fatally. During studies being conducted on patients undergoing mitral valvuloplasty, the electrocardiogram and the electroencephalogram have been monitored by means of continuously recording instruments. During the last three years, the observation of the electrocardiographic tracing during these procedures has been found to be a very valuable aid; recently, the electroencephalogram has become a useful tool to aid the anesthesiologist in judging cortical activity during anesthesia. During the routine use of these instruments, two instances of cardiac arrest occurred; thus we were able to follow the

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