Four fatalities are reviewed: 1. Cerebral hemorrhage, 2. Coronary occlusion, 3. Aspiration pneumonia and 4. Pulmonary embolism. Two other complications are also reviewed, one a result of ECT and the other an incidental complication; namely, rupture of an abdominal viscus and acute suppurative appendicitis.Kalinowsky(2) states that coronary complications may arise following ECT. He states that cerebral hemorrhage has not occurred in his experience. Kalinowsky(3) also states intestinal ruptures have occurred as has pulmonary embolism from pelvic thrombosis.Clinically, the occurrence of the described unusual complications following the use of ECT over a 3-year period in one institution has resulted in a broadening of the staff's education and experience in this field and have tested their mettle in coping with these complications.However, in spite of the fact that complications do arise, the value of this form of treatment is in no way disputed.