[Experimental morphologic findings serving as a basis for use of xenogenic dura mater for plastic surgery of blood vessels].

Heterotransplants of the human dura mater were used to replace circular and lateral defects of the thoracic and abdominal aortas, carotid and iliac arteries in experiment. Operations were performed in 106 dogs. Observations of permeability of the vessels, morphological and histochemical studies were carried out at different periods after operation (from 1 day to 2 years). The xenogenous dura mater has well pronounced plastic properties--it is solid, elastic, characterized by low antigenicity. During transplantation there appear no hard inflammatory--destructive changes in reconstructed vessels and the surrounding tissues. The transplant is gradually substituted by recipients tissues characterized by high specialization. They are rich in elastic and smooth muscle fibres, have good blood supply and innervation. The dura mater is a good material for plastics of vascular wall defects.