Restoration of fertility after non-obstructive vasectomy in the rabbit.
This study was undertaken for the purpose of comparing reversibility following long-term sperm obstruction with that following long-term sperm diversion. The rabbit served as the animal model. Sperm obstruction was produced by transection and ligation of the vasa deferentia near the vasal ampulla; sperm diversion by transection of vasa and anastomosis of afferent limb with urinary bladder. After one year. vasal continuity was reestablished by end-to-end vasovasostomy. Restoration of fertility was more successful after sperm diversion than after sperm obstruction. It is concluded that vasocystostomy in the rabbit is a safe and effective method of male fertility control with greater probability for successful reversal than conventional vasectomy.
D000818:Animals; D005260:Female; D005298:Fertility; D006099:Granuloma; D008297:Male; D008954:Models, Biological; D011247:Pregnancy; D011817:Rabbits; D013094:Spermatozoa; D013243:Sterilization Reversal; D001743:Urinary Bladder / Q000601:surgery; D014659:Vasectomy / Q000379:methods