Journal
OBESITY SURGERY
Volume 31, Issue 12, Pages 5446-5457Publisher
SPRINGER
DOI: 10.1007/s11695-021-05753-8
Keywords
Bariatric surgery; Ketamine; Pain; Obesity; Weight loss
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This meta-analysis found that intravenous ketamine can reduce pain scores and morphine consumption immediately after bariatric surgery in patients. However, there were no significant differences in pain scores, morphine consumption, and risk of postoperative nausea/vomiting within 24 hours post-surgery between patients with intravenous ketamine and those without.
This meta-analysis aimed at exploring the impact of intravenous ketamine on pain relief and analgesic consumption in patients undergoing bariatric surgery (BS). Literature searches identified nine eligible trials with 458 participants. Forest plot revealed a significantly lower pain score [mean difference (MD) = - 1.06, p = 0.005; 390 patients) and morphine consumption (MD = - 3.85 mg, p = 0.01; 212 patients) immediately after BS in patients with intravenous ketamine than in those without. In contrast, pooled analysis showed comparable pain score (p = 0.28), morphine consumption (p = 0.45) within 24 h, and risk of postoperative nausea/vomiting (p = 0.67) between the two groups. In conclusion, the meta-analysis demonstrated improvements in pain outcomes immediately after surgery through perioperative intravenous ketamine administration despite the absence of analgesic benefit in the late postoperative period and a positive impact on postoperative nausea/vomiting.
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