Intermittent claudication caused by a hip joint ganglion.

A case report of a patient with unusual compressive syndrome is reported herein. A 27-year-old woman was referred to our hospital due to intermittent claudication in the left thigh and calf which gradually developed over the last five months. Angiography showed an atypical short occlusion of the external iliac artery.

Surface-modified acrylic polymers in artificial heart pumps.

Blood chambers of counterpulsation heart pumps were subjected to a special hydrophilization process in order to reduce the coagulation activity of the surface of poly(methyl methacrylate) (PMMA). The chemical treatment of the surface was carried out in three variants, namely A (ethylenglycol), B (diethylenglycol), C (glycerine) by using concentrated sulphuric acid with subsequent neutralization [12]. Controls were performed with the same pumps made of PMMA but without surface treatment.

Biological testing of surface-modified acrylic polymers.

The author describes three variants of the surface treatment of PMMA using a special method suggested by Wichterle. Modified surfaces of PMMA discs in three variations A, B, C were followed in subcutaneous implantation in rats during three months and were well tolerated. The final stage was characterized by a stabilized fibrous capsule.