Vasovasostomy: a comparison of macroscopic and microscopic techniques at one institution.

During a 5-year period between 1973 and 1977, 87 patients underwent vasovasostomy to correct postvasectomy sterility. Sixty-one patients had single-layer macroscopic reanastomoses and 26 patients had two-layer microscopic reanastomoses. Patency rates of 90% and 96% and pregnancy rates of 46% and 54% for the macroscopic and microscopic techniques were achieved.