Hysterosalpingography after hysteroscopic surgery.

We reviewed pre- and postoperative appearances of the uterine cavity on hysterosalpingography (HSG) in 28 patients who had hysteroscopic surgery. Twelve patients presented with primary infertility and 16 patients with secondary infertility. The uterine abnormalities included synechiae (12), septa (8), submucosal fibroids (7), and polyp (1). The size and number of lesions in the uterus, the extent of improvement after surgery, and the postoperative pregnancy rate were recorded. The uterine cavity was restored to a normal appearance in 23 (82%) of 28 patients. In patients after fibroid resection, all uterine cavities reverted to normal after surgery. Two patients developed adhesions after septal resection. Three patients with lysis of synechiae remained unchanged or had worsened intrauterine scarring. The postoperative pregnancy rate was 35% (six of 17) in those patients followed for more than 6 months. One patient had a spontaneous abortion. In the six patients who became pregnant, four had secondary infertility, and all had normal or substantial improvement in the appearance of the uterine cavity after surgery. Perforation of the uterus occurred in one patient after resection of a fibroid.