Complications from the pacemaker pocket. Prophylaxis, treatment and results

281 patients who had permanent pacemaker implanted between 1961--73 have been checked at 4 month intervals over a period of 1 to 13 years. Complications from the pacemaker pocket comprises haematoma, skin necrosis, infection of the pocket, allergic reaction to the pulse generator, pacemaker twiddlers syndrome, and muscle contractions. The causes for and treatment of 11 cases with haematoma, skin necrosis or infection are dealt with in detail.