[Atherosclerosis of the coronary arteries and the blood group in the population of Lithuania].

Data are reported on the relation between atherosclerosis of the coronary arteries and blood group. Examined were 291 patients in whom involvement of the coronary arteries was verified by means of coronarography and aortocoronary shunting. It was established that the group B blood was distinctly more frequent and group O blood was distinctly less frequently observed in male patients under 45 years.

[Outcomes of reoperations in dysfunction of mechanical prostheses in relation to the clinical course].

Operations were conducted for the second time on 87 patients (98 operations). Reoperations were performed on 75 (76.5%) and closure of the fistula in 23 (23.

[Long-term results of mitral valve prosthetics depending on the prosthesis model (ball, disk)].

The authors conducted a comparative analysis of patients of 2 groups--with a MK4 model ball prosthesis and an folding disc prosthesis. It was found that the number of late-term (repeated) thromboembolic complications was significantly less in patients with a disc prosthesis (3.95 cases per 100 patient-years) and 4.

[Causes of decreased stability of good survival results and the incidence of complications in patients with multiple heart valve prostheses].

The results of six-year follow-up of 368 patients after multiple prosthetic valve implantation (mitral and aortic prostheses in 173, mitral and tricuspid prostheses in 129, three prostheses in 36, mitral and aortic prostheses with tricuspid annuloplasty in 30) are reviewed. The mean functional class was 4.05 prior to the operation, and eventually declined to 2.