child at the University of Minnesota Hospital in 1953. This issued in a life-saving advance, the use of which has expanded enormously to in­ clude treatment of many areas of cardiac disease. Not unexpectedly, surgical techniques allowed through the use of the heart-lung machine (open-heart surgery) came to be applied in 1967 to the major killer of Americans, namely, coronary artery disease. This operation, known as coronary artery bypass, has become one of the most common surgical operations. Coronary artery disease, with the possibility of total incapacitation or sudden death from a heart attack, can alter severely the personality of the patient. Corrective surgery can sometimes intensify rather than ame­ liorate a patient's fears. To the surgeon, occupied by increasing numbers of patients, there is not time enough to give the preoperative attention that might be helpful. Also, the surgeon and cardiologist are limited in their ability to recognize those patients near the breaking point. The research outlined in these chapters by Drs. Pimm, Feist, and their associates is welcomed by cardiologists and cardiac surgeons. It provides insight into what appears to be reliable recognition of those patients likely to have an adversely affected mental status by coronary bypass surgery and "crisis intervention" to avert this effect and allow the complete benefit of returning the patient to a normal life.

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