Minnesota Multiphasic Personality Inventory prediction of intellectual changes following cardiac surgery.

One hundred two cardiac surgery patients were tested with the Minnesota Multiphasic Personality Inventory (MMPI) preoperatively and 98 of these patientts (two diet, two were untestable) were tested both pre- and postoperatively with the Wechsler Adult Intelligence Scale, Bender-Gestalt, and the Wechsler Memory Scale. A large number of the patients obtained preoperative "neurotic"-type MMPI profiles. Postoperative deficits in intellectual ability were slight for the group as a whole, however, there was marked within-group variance. The MMPI was not found to be useful as a predictor of postoperative intellectual changes.