Hypogastric artery ligation for severe hemorrhage in obstetric patients.

Ligation of the hypogastric arteries (HAL) was first introduced into surgery by the end of the 19(th) century to control intractable hemorrhage from the uterus of women with advanced cervical cancer. At present, HAL is one in a spectrum of operative methods to control life-threatening postpartum hemorrhage before hysterectomy. Bilateral ligation of the internal iliac artery does not result in complete blockage of but to a significant decrease in blood supply to the female pelvic organs. Soon after ligation three previously existent collateral circulations will develop. Due to the smaller caliber of these arteries, the arterial pulse and pulse pressure are virtually eliminated. The effectiveness of HAL in avoiding hysterectomy for postpartum hemorrhage has been reported in up to 50% of cases. HAL has no adverse effect on subsequent fertility or pregnancy outcome, however, assessment for intrauterine fetal growth restriction is recommended. This safe and effective procedure should be taught during obstetric and gynecologic training.