Key result
Preoperative 6MWT/BMI ratio strongly predicts early nonresponse to weight loss after bariatric surgery.
Why the study?
Does preoperative 6-minute walk test performance predict early nonresponse to weight loss in individuals with class III obesity undergoing bariatric and metabolic surgery?
Does preoperative 6-minute walk test performance predict early nonresponse to weight loss in individuals with class III obesity undergoing bariatric and metabolic surgery?
Preoperative 6-minute walk test performance, particularly the 6MWT/BMI ratio, can serve as a valuable risk stratification tool to predict early nonresponse to weight loss after bariatric surgery.
May support preoperative risk stratification in bariatric surgery; hypothesis-generating pending prospective validation.
Preoperative 6MWT performance provides promising prognostic information for early nonresponse to weight loss following MBS. The 6MWT/BMI ratio showed the strongest and most consistent predictive performance within our cohort, supporting its potential role as a valuable supplementary risk stratification tool. Absolute 6MWT distance may serve as a high-sensitivity screening tool. When used in conjunction with other clinical assessments, this two-step approach may help identify patients at risk for nonresponse and guide targeted perioperative interventions.
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Choi et al. (2026) studied this question. The preoperative 6MWT/BMI ratio strongly predicts early nonresponse to weight loss after bariatric surgery, aiding risk stratification and targeted interventions.
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