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. 2021 Jan-Mar;15(1):107-110.
doi: 10.4103/aer.aer_47_21. Epub 2021 Aug 30.

Effect of Single Preoperative Dose of Duloxetine on Postoperative Analgesia in Patients Undergoing Total Abdominal Hysterectomy under Spinal Anesthesia

Sharmila Rajamohan  1 , Manjunath Abloodu Chikkapillappa  2 , Prapti Rath  2 , Vinayak Seenappa Pujari  2 , Tejesh C Anandaswamy  2 , Geetha C Rajappa  2
Affiliations

Effect of Single Preoperative Dose of Duloxetine on Postoperative Analgesia in Patients Undergoing Total Abdominal Hysterectomy under Spinal Anesthesia

Sharmila Rajamohan et al. Anesth Essays Res. 2021 Jan-Mar.

Abstract

Background: Women undergoing hysterectomy present a unique set of challenges to the anesthesiologist in terms of postoperative pain management. This study was conducted to see the effect of single-dose perioperative duloxetine 60 mg on postoperative analgesia following abdominal hysterectomy under spinal anesthesia.

Materials and methods: This prospective randomized placebo-controlled study was conducted on 64 patients scheduled to undergo elective abdominal hysterectomy under spinal anesthesia. The patients were divided into two groups of 32 in each, Group D received duloxetine 60 mg 2 h preoperatively and Group P received placebo 2 h preoperatively. Postoperatively, the patients were evaluated by an independent observer for pain on rest and during cough at 0 (arrival at postanesthesia care unit), 2, 4, 6, 12, and 24 h. In addition, the postoperative analgesic requirements and adverse effects were noted.

Statistical analysis used: Independent t-test/Mann-Whitney U-test was used to compare the pain score between two groups.

Results: The demographic data were comparable between both the groups. The mean Visual Analogue Scale scores assessed postoperatively at rest and during cough which were not statistically significant between the two groups. The rescue analgesic consumption in Group D (0.97 ± 0.86) and Group P (1.25 ± 0.76) was comparable and statistically not significant. The total analgesic requirement between duloxetine (4.94 ± 0.84) and placebo (1.25 ± 0.76) group was comparable and statistically not significant. The incidence of nausea vomiting and somnolence was higher in Group D.

Conclusion: We conclude that patients receiving a single dose of 60 mg duloxetine as premedication before hysterectomy under spinal anesthesia are no better than placebo on postoperative pain during the first 24 h.

Keywords: Duloxetine; hysterectomy pain; postoperative analgesia.

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Conflict of interest statement

There are no conflicts of interest.

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