[Tissue reaction in microvessel anastomoses. Comparative study of resorbable and nonresorbable suture material].

Absorbable and non-absorbable suture materials were compared in microsurgical end-to-end-suture of the aorta in rats. Individual differences in tissue reaction were excluded by using the different materials in the same animal and the same organ. The use of absorbable suture materials needs longer practice as it is difficult to handle. Leaking anastomoses did not occur. Anastomoses were examined by light- and scanning electron microscopy. Both materials show similar neo-intima. Non-absorbable suture material shows greater tissue reaction which is also more persistent.