An Observational Study to Compare Two Doses of Intrathecal Midazolam with Bupivacaine for Post Operative Analgesia in Patients Undergoing Elective Haemorrhoidectomy

Abstract

Introduction: This observational study is designed to find out the lower doses of intrathecal midazolam (preservative free) when used as adjuvant with hyperbaric bupivacaine for post operative analgesia in patients undergoing elective haemorrhoidectomy. Method: 60 patients were randomly classified into two groups according to the dose of adjuvant added to local anesthetic. 30 patients in group BM1 will receive 2ml 0.5% hyperbaric bupivacaine + 1mg preservative free midazolam (0.1ml) with 0.1ml normal saline. And the other 30 patients in group BM2 will receive 2ml 0.5% hyperbaric bupivacaine + 2mg preservative free midazolam (0.2ml).patients were observed for duration of sensory block, motor block, postoperative analgesia and analgesic requirement in first 24 hours. Result : Duration of analgesia was significantly less in the BM1 group than in the BM2 group. Conclusion: The addition of 2 mg of intrathecal midazolam with bupivacaine prolonged the postoperative analgesia as compare to 1mg intrathecal midazolam