Efficacy of dexmedetomidine in postoperative nausea and vomiting in laparoscopic bariatric surgery: A systematic review and meta-analysis of randomised clinical trials.

Postoperative nausea and vomiting (PONV) is a common side effect of all types of surgeries, especially so in bariatric surgery. Dexmedetomidine (DX) is an α2-agonist that may be useful as an adjunct prophylactic medication for PONV. This meta-analysis aims to evaluate the efficacy of DX in reducing the incidence and severity of PONV in laparoscopic bariatric surgeries.