[Complications of endocardial electric stimulation].

The results of the operative treatment of 277 patients with atrioventricular block and sick sinus syndrome were analysed. The primary implantation of the electrocardiostimulators (ECS) was performed in 211 (73.5%), the repeated one--in 76 (26.5%) patients. The complications of endocardial electrocardiostimulation developed in 58 (17.3%) patients, of them in 39 (14%), the repeated operative intervention was performed. Most frequently, the complications were conditioned by the quality of electrodes and ECG.