OBJECTIVE: To determine the postoperative effectiveness of trimodal prehabilitation in older surgical patients. METHODS: We searched Medline, PubMed, Embase, the Cochrane Library, Web of Science, and ClinicalTrials.gov for observational cohort studies and randomised controlled trials (RCTs) of older surgical patients who underwent trimodal prehabilitation. We performed a meta-analysis to estimate the pooled risk ratio (RR) for dichotomous data and weighted mean difference (MD) for continuous data. Primary outcomes were postoperative mortality and complications, and the secondary outcomes were the 6-min walk test (6MWT) at 4 and 8 weeks after surgery, readmission, and length of hospital stay (LOS). This systematic review and meta-analysis was registered with PROSPERO (registration number CRD42020201347). RESULTS: We included 10 studies (four RCTs and six cohort studies) comprising 1,553 older surgical patients (trimodal prehabilitation group, n = 581; control group, n = 972). There were no significant differences in postoperative mortality (RR 1.32; 95% confidence interval (CI) 0.52 to 3.35) and postoperative complications (RR 0.91; 95% CI 0.76 to 1.09). Prehabilitation did not reduce readmission (RR 0.92; 95% CI 0.61 to 1.38) and LOS (MD 0.10; 95% CI -0.34 to 0.53). In a sub-analysis, trimodal prehabilitation did not significantly improve postoperative mortality, postoperative complications, readmission rates, or LOS when compared with standard care. However, trimodal prehabilitation significantly improved the 6MWT at 4 weeks after surgery (MD 37.49; 95% CI 5.81 to 69.18). CONCLUSIONS: Our systematic review and meta-analysis demonstrated that trimodal prehabilitation did not reduce postoperative mortality and complications significantly but improved postoperative functional status in older surgical patients. Therefore, more high-quality trials are required.

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