[With long-term conservative treatment of infectious endocarditis after aortic valve replacement].

This clinical study revealed peculiarities of early and late infectious endocarditis (IE) of artificial aortic valves. Possible sources of bacteremia, pathogenic agents and clinical picture of this pathology, methods of its early and differential diagnostics are described. High efficacy of combined antibiotic therapy is demonstrated in case of impracticability of surgical treatment.

[The effect of high-molecular compounds on the rheological properties of the blood and on the reactivity of the skeletal muscle vessels]. / Vliianie vysokomolekuliarnykh soedinenii na reologicheskie svoistva krovi i reaktivnost' sosudov skeletnoi myshtsy.

The administration of polymers into the vascular bed of the m. gastrocnemius and in vitro did not affect the postocclusion hyperemia but in changed the venous outflow from the muscle, the change having a phasic character. The effects of concentrations and molecular mass of the polymers on the blood rheological properties were more obvious in vitro. Dextran-20 thousand most favourably affects the blood viscosity whereas the least favourable one belongs to polyoxyethylene-20 thousand. The polymers with molecular mass about 500 thousand in small concentrations reduce the viscosity of the blood, in larger concentrations they enhance it increasing the erythrocytes aggregation.