[The quality of life and survival of patients with an implanted pacemaker (the results of long-term observation)].

110 patients with implanted pacemaker were followed up for 1 to 10 years until a complete atrioventricular block. Permanent pacemaking is effective as it eliminates or reduces many symptoms, prolongs active life, improves quality of life in 81.4% of patients.

[Indicators of bicycle ergometry after heart transplantation].

Exercise tolerance in postcardiac transplantation patients versus healthy controls was studied at different intervals after the surgery using bicycle ergometry. Being low after the transplantation, exercise tolerance in the patients increased throughout the rehabilitation period but still did not reach the values characteristic for healthy subjects. Initial heart rate in the above patients was higher, while chronotropic and inotropic reserves of the transplanted heart appeared lower than in the controls.

[The dynamics of the heart contraction rate and arterial pressure during physical loading after a heart transplant].

Compared to healthy controls, patients with transplanted heart have higher baseline heart rate (HR), delayed initial HR reaction, slower changes of HR both during exercise and after it, diminished chronotropic and inotropic reserves. The data obtained contribute to better understanding of physiology of transplanted denervated heart and objective assessment of patients after heart transplantation.

[Arrhythmia in patients after heart transplantation].

Holter monitoring was performed in 15 patients surviving over 3 months after homotopic cardiac transplantation. The frequency and types of arrhythmias occurring in the grafted innervated heart were studied according to its postoperative period duration. The follow-up lasted 3 to 29 months.