The Effect of Local Anesthesia on Postoperative Pain in Vaginal Hysterectomy: A Randomized Controlled Trial
The Effect of Local Anesthesia on Postoperative Pain in Vaginal Hysterectomy: A Randomized Controlled Trial
The investigators aim is to study the effect of pre-operative local anesthetic on post vaginal hysterectomy pain.
This is a double-blinded, randomized, controlled trial. Women who undergone elective vaginal hysterectomy and gave their informed consent were included. Exclusion criteria included additional abdominal, chronic pelvic pain, malignancy, and allergy to Bupivacaine.
Solutions of either Bupivacaine-Hydrochloride 0.5%, or Sodium-Chloride 0.9% as a placebo, were prepared prior to surgery, according to randomization. The chosen solution was injected before incision, as a modified paracervical block, and in each resection line (sacro-uterine and cardinal ligaments). The amount of fluid administered was 10 ml. When colporrhaphy was also performed, an additional 5 ml of solution were injected in the midline of the vaginal wall prior to each incision line.
By utilizing the 10 cm Visual-analogue-scale (VAS) we examined the differences in post-operative pain at rest at 3, 8, and 24 hours, and during ambulation at 8 and 24 hours using multivariate linear regression models. We also assessed the differences in analgesics given at the different time points between the groups using multivariate negative binomial regression models.
Inclusion Criteria:
Exclusion Criteria:
additional abdominal, chronic pelvic pain, malignancy, and allergy to Bupivacaine.