[Indications and results of artificial pacemaker implantation in children].

Since 1989 till 1999 operations were performed on 74 children aged from 13 months to 15 years. There were 130 operations, 56 reoperations included. Iatrogenic atrioventricular blockades were diagnosed in 47 children (63.

[Infectious complications in electric cardiac stimulation].

There were 4424 patients operated for alterations of the cardiac rhythm. Primary electrocardiostimulation was performed in 3183 of them, reoperations in 1241 patients (39%). Infectious complications took place in 146 patients (3.

[Results of closed mitral commissurotomy after 20-25 years].

The 20-25 year results of 486 closed mitral commissurotomies were analysed. The actuarial analysis demonstrated that 25-year survival was 59%, stable good results were 38%, repeated mitral interventions were performed in 31% of the patients. The patients' survival and functional results of commissurotomies depend on early surgery which should be done in patients with severe and acute mitral stenosis prior to the development of drastic valvular changes, calcinosis, regurgitation, atrial fibrillation, cardiomegaly, atrial thrombosis and other complications.

[Complications and survival of patients after electric cardiac stimulation].

In patients with bradyarrhythmia 1105 operations were performed. Among them 528 primary stimulations were fulfilled with 2.4% lethality, 289 changes of the generator, 122 temporary electric cardiac stimulation.

[Patient survival over 20 to 25 years after mitral commissurotomy].

The authors report that 282 of 457 patients (62%) are alive for 20-25 years after mitral commissurotomy. The twenty-five-year survival is higher in women (70%) than in men (30%).