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ORIGINAL ARTICLE
Year : 2021  |  Volume : 15  |  Issue : 1  |  Page : 67-72

Effect of gelfoam soaked epidural dexmedetomidine or bupivacaine for postoperative analgesia in lumbar laminectomy: A prospective randomized clinical study


1 Department of Anaesthesiology and Critical Care, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
2 Department of Anaesthesiology, Medanta Hospital, Lucknow, Uttar Pradesh, India

Correspondence Address:
Dr. Manoj Kumar Giri
Department of Anaesthesiology and Critical Care, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow - 226 010, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aer.aer_66_21

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Background and Aims: Postoperative pain is spine surgery can last for an average of two to three days. Epidural catheter management are difficult in spine surgery for postoperative pain. Still, there have been not much studies on epidural administered gelfoam soaked dexmedetomidine or bupivacaine, to enhance postoperative analgesia. Methods: Ninety six adult patients were randomized into three groups. Gelfoam soaked in 0.1 mg dexmedetomidine (0.02 mg. mL-1) in group D, 0.25% isobaric bupivacaine (5 mL) in group B and gelfoam soaked in 0.9% normal saline (5 mL) in group C. The Primary outcome was to compare the total amount of rescue analgesic consumption till 48 hours. The Secondary outcome was to compare time to first dose of rescue analgesia (duration of analgesia), the visual analogue scale and side effects up to 48 hours. Chi-square test, independent t test and analysis of variance test were used, and P < 0.05 was considered significant. Results: Ninety patients completed the study. Total dose of rescue analgesic consumed in 48 hours was significantly higher in control group (paracetamol 4.17 ± 0.75 gm with tramadol 205 ± 37.94 mg). Bupivacaine soaked gelfoam group (paracetamol 3.04±0.71 gm with tramadol 151.85 ± 35.31 mg) had more rescue analgesic consumption than dexmedetomidine soaked gelfoam group (paracetamol 1.72 ± 0.57 gm with tramadol 86.11 ± 28.73 mg). Time for first rescue analgesic requirement with dexmedetomidine soaked gelfoam group was significantly longer (14.67 ± 7.76 hours) than in bupivacaine soaked gelfoam group (11.33 ± 6.08 hours) and control group (6.40 ± 2.77 hours). Postoperative mean VAS scores were lower in group D and group B compared with group C along with no significant adverse effects. Conclusion: Patients undergoing lumbar laminectomy with gelfoam soaked epidural dexmedetomidine or bupivacaine decreases rescue analgesic consumption, prolongs the duration of analgesia and decreases mean VAS score postoperatively.


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