Microsurgical anastomosis of vas deferens: an experimental study in the rat

A patency rate of more than 90 per cent was achieved after 52 vasovasostomies. Satisfactory results were shown in both internally stented and nonstented anastomoses. A higher incidence of foreign body reaction was associated with silk sutures. Sperm granulomas and reduced patency were noted when superficial sutures were used indicating that a leakproof anastomosis is essential.