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Morphological grounds presented here show, that hydrogel with a 2-hydroxyethyl methacrylate basis is a suitable material f o r vascular occlusion with therapeutic purposes. It has been shown, that hydrogel emboli neither injure, nor irritate the blood vessel wall; they promote thrombogenesis in the loealization sites andare preserved in the vascular lumen for a period necessary for the manifestation of the therapeutic occlusive effect. The hydrogel property to swell directly in the vascular lumen, as well as to promote blood clotting, is a factor providing for reliable occlusion.

Dicinone-saturated emboli switch off pathological bloodflow and arrest bleedings upon endovascular embolization of blood vessels. Dicinone emboli exert a potent hemostatic effect and promote more rapid and expressed (in volume) thrombogenesis.