[Surgical problems of the transvenous implantation of cardiac pancemakers]

489 operation were performed at 323 patients with transvenous implantation of cardiac pacemarkers in 1968-1973. The average of the complications is coming to 25 p.c. of all operations. 41 (34 p.c.) operations of correction are caused by a dislocation of the electrode, 39 (33 p.c.) by a break of the electrode, 18 (14 p.c.) by infectious complications. The operative and technical possibilities to prevent the complications are described. The method of transvenous implantation of cardiac pacemakers is preferred.