[Functional and morphologic changes in the tendons and multimicrovacuolar collagen absorbing system of the three-phalanx fingers in disorder of arterial inflow].

Taking into account the fact, that unsatisfactory results of treatment of the thumbs traumatic damage are significantly caused by presence of anatomic disruption of the thumbs palm's own arteries with chronic tissue ischemia occurrence. One of consequences of damage of the three-phalanx thumbs interphalanx joints and the thumbs palm's own arteries is a formation of quickly progressing secondary flexing contracture of proximal interphalanx joints (PIPHJ). In the investigations accomplished there was established, that the changed tissues of the flexors tendons and their sheaths, forming cicatricial blockade distally to the primary trauma site, are taking part in a PIPHJ contracture development while arterial perfusion presence.

[New technologies in diagnosis and surgical treatment of the abdominal aorta aneurysm].

Modern views about occurrence, pathogenesis, and methods of diagnosis and surgical treatment of abdominal aorta aneurysm are adduced. Application of new highly informative diagnostic methods, an adequate anesthesiological support, differentiated methods of surgical intervention have permitted to reach marked progress in the treatment of patients with abdominal aorta aneurysm.

[Effect of surface roughness of polymers on thrombus formation].

Thromboresistant properties of fluoroplast-4, lavsan, polymethylmetacrylate, carbon glass, employed in various devices contacting the blood and presenting different degrees of the surface roughness, were studied. The thromboresistant properties of polymers were judged on the ground of modified methods for determining the blood coagulating time, thromboelastograms, with reference to the prothrombin complex factors concentration, the amount of fibrinogen, heparin blood tolerance, the thrombocytes adhesion index, their splitting and flattening. A higher class of the polymer surface roughness was found to raise the thromboresistant properties of the surface.