Hysterosalpingography In Itrogenic Uterine Fistula.

Hysterosalpingography (HSG) was performed in four patients through fistulae which were created during termination of pregnancies. The previous HSG done prior to this study did not demonstrate the uterine cavity and the fallopian tubes in all the patients They showed only a contrast filled vaginal vault. Fistulae were found in the fornices of the patients and these were the openings through which the contrast refluxed into the vagina preventing demonstration of the uterine cavity and fallopian tubes. These fistulae were cannulated after using the volselum forceps to clip the anterior and posterior lips of the cervix. The uterine cavities and fallopian tubes were demonstrated in all patients. The patients did not have a history of insertion of corrosive pastries into the vagina at any time. They admitted terminating pregnancies of between 7 and 14 weeks old in the last three years. Fistulae as a cause of failure of hysterosalpingographic procedures, as seen in the patients in this study, has not been previously documented.