Repeat sterilization reversal.

Thirteen women had repeat sterilization reversal using microsurgery either because of failed IVF or personal preference for microsurgery. Six pregnancies occurred in 5 women resulting in 5 livebirths and 1 miscarriage. Pregnancy occurred in all 3 patients having isthmic anastomosis in the second sterilization reversal. Preliminary hysteroscopic tubal cannulation would have excluded operation on 2 patients who had tubal blockage extending several centimetres proximal to the site of the first anastomosis.