[Pathological obstruction of the first portion of the tubal isthmus. An analysis of 50 microsurgical operations (author's transl)]

The authors report a series of 50 cases of proximal tubal microsurgery with an interval of 11.8 months for isthmo-uterine anastomosis and 15 months for isthmo-interstitial anastomosis. The overall results are: 61 per cent of complete patency and 16 per cent of intra-uterine pregnancy. The technique of isthmo-uterine anastomosis after wide excision of the fibrous portion seems to be preferable since it gives an 81 per cent result of satisfactory patency as compared with 20 per cent when the anastomosis is between the isthmus and the interstitial portion of the tube. The fact that endometriosis was present in 34 out of 48 cases, which is a very high proportion, and the short follow-up, may explain the relatively poor results.