[Efficacy of subcutaneous infiltration of bupivacaine for postoperative pain mangment after inguinal herniorrhaphy]

ABSTRACT

Poor controlled postoperative pain not only causes acute and chronic consequences but also increases mortality and morbidity. Local anesthesic drug infiltrations in the incision site is another method of managing the postoperative pain. This study aims to evaluate the effect of bupivacaine wound infiltration in improving postoperative pain managing in abdominal surgeries. In a randomized double-blind clinical trial, 50 patients scheduled for abdominal surgery enrolled into two equal groups. 20 ml of bupivacaine 0.5% for the study group and an equal volume of normal saline for the control group was infiltrated sub-cutanesly on both sides after closure of incision wound Intensity of pain was assessed by Visual Analogue Scale in recovery room and at 2, 4 hours postoperatively. Whenever VAS was more than 4, meperidine 0.7 mg/kg IV was injected. VAS scores and opioid consumption between two groups in recovery room and at 2, 4 hours postoperatively were statistically significant. In study group, VAS scores and meperedine consumption were less. Local anesthetic wound infiltration in abdominal surgeries decreases postoperative pain and lowers opioid consumption. As a method of postoperative pain management, infiltration analgesia may be considered in abdominal surgeries along with other modalities of acute pain management