[Experimental evaluation of the use of elastomer threads in vascular surgery].

Experiments were conducted for comparative analysis of the use of elastic (Spandex) and nonelastic (Eticon) threads for the formation of anastomoses in vascular surgery. The results were studied in follow-up periods of up to 18 months. Thrombosis occurred at the site of anastomosis only in 6.8% of cases in which elastic threads were applied in contrast to 30% of cases in which nonelastic threads were used. Microscopy in the first case revealed neither marked inflammatory reaction nor necroses, which promoted regeneration and the formation of the neointima. In the second case, on the one hand, the nonelastic anastomosis between two elastic tubes creates conditions for thrombus formation, and on the other, the tension occurring periodically in this zone causes damage to the tissues and prevents rapid formation of the neointima.