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Objective To conduct a meta-analysis to compare different dosing scalars of sugammadex in a morbidly obese population for reversal of neuromuscular blockade (NMB). Methods PubMed®, ClinicalTrials.gov, Cochrane Central Register of Controlled Trials (CENTRAL) and Google Scholar were searched for relevant randomized controlled trials (RCTs) comparing lower-dose sugammadex using ideal body weight (IBW) or corrected body weight (CBW) as dosing scalars with standard-dose sugammadex based on total body weight (TBW) among morbidly obese people after NMB. Mean difference with SD was used to estimate the results. Results The analysis included five RCT with a total of 444 morbidly obese patients. The reversal time was significantly longer in patients receiving sugammadex with dosing scalar based on IBW than in patients receiving sugammadex with dosing scalar based on TBW (mean difference 55.77 s, 95% confidence interval [CI] 32.01, 79.53 s), but it was not significantly different between patients receiving sugammadex with dosing scalars based on CBW versus TBW (mean difference 2.28 s, 95% CI –10.34, 14.89 s). Conclusion Compared with standard-dose sugammadex based on TBW, lower-dose sugammadex based on IBW had 56 s longer reversal time whereas lower-dose sugammadex based on CBW had a comparable reversal time.