ABSTRACT
An analysis of 490 operations in 442 patients with different variants of supraventricular and ventricular tachycardia was made. Complications developed in 23 cases (4.7%). The least (0.8%) risk of complications was noted in patients after destruction of the atrioventricular junction, the greatest (9.6%) in patients with abnormal junctions. Measures of treatment depended on the degree and severity of the complication and the character of concomitant disease. The division of complications into biogenic and technogenic allows the possible factors influencing their development to be differentiated. The frequency of complications is determined by complexity of the methods used and the necessary experience on the one hand, and by the severity of the patient's state and coexistent diseases on the other hand.
