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.

Growth of Pseudomonas fluorescens with sodium maleate as a carbon source.

The growth of Pseudomonas fluorescens (ATCC 11150) on sodium maleate was observed, and the composition of the media was monitored in batch culture. Utilization of the maleate as the sole organic carbon source proceeded by stepwise conversion to fumarate and then to malate. Respiration rates of P. fluorescens on maleate, mixtures of maleate and fumarate salts, and mixtures of maleate and malate salts were measured. Complex effects, possibly due to a change in metabolic mechanism, were observed.