the Effect of Pre-sacral Nerve Block on Post-operative Pain Following Laparoscopic Hysterectomy: a Triple Blind Placebo Controlled RCT

40 patients who are consenting to be recruited in the study and are fulfilling the eligibility criteria will be subjected to: Group A Before the removal of uterus and the closure of vaginal cuff, insertion of 6inch 22G needle 2 to 3 cm below the umbilicus, 30 ml normal saline (sodium chloride solution 0.9%, FIPCO, Egypt)will be administered , then the uterus will be removed, and the operation will be terminated

While patients randomized to group B will undergo TLH with pre-sacral nerve block as follows:

Uterosacral nerve block will be performed before the removal of uterus and the closure of vaginal cuff, and before the removal of trocars from abdominal cavity, insertion of 6-inch 22G needle 2 to 3 cm below the umbilicus, injection of the SHP area which situated anterior to L5-S1 vertebral bodies, Caudal to the bifurcation of the abdominal aorta with 30 ml 0.25% bupivacaine (Marcaine®0.25% , Astra Zeneca, Egypt) will be administered. Following the injection of local anesthetic, patient will be placed from Trendelenburg position to horizontal position. The we will remove the uterus and trocars , and the operation will be terminated.

Data will be recorded in a case report form (CRF) and statistical analysis will be done.