The Use of Psychological Test Data to Predict Open-Heart Surgery Outcome: A Prospective Study

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Abstract
In an attempt to predict survival of open-heart surgery, particularly among high risk subjects who undergo extra-corporeal circulation (ECG) using pump oxygenation perfusion, a preoperative battery including intellectual, personality and neuropsychological instruments and also ratings of cardiac impairment, was administered to 15 control (cardiac surgery without ECG) and 72 experimental (ECG) subjects. Subjects were divided into survivor (S) and fatality (F) groups, and preoperative test data were analyzed using multivariate stepwise discrimination techniques. In a variety of analyses, at least 86% and as high as 100% of subjects were correctly classified as survivors or fatalities on the basis of variables sampled, indicating the outcome of cardiac surgery may be predicted preoperatively with a high degree of accuracy.

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