biostudies-literatureUnknown12Lai H<h4>Objective</h4>To identify, evaluate, and synthesize the best available evidence on preoperative rehabilitation for older patients undergoing gastrointestinal tumor surgery.<h4>Methods</h4>Following the "6S" evidence model, a systematic search was conducted for clinical decisions, guidelines, systematic reviews, expert consensus statements, evidence summaries, and randomized controlled trials on preoperative prehabilitation for older patients with gastrointestinal tumors. Searches covered major domestic and international databases as well as professional websites, with literature collected up to 30 November 2024. Two researchers independently screened the studies, assessed methodological quality, and extracted data, with input from expert judgment.<h4>Results</h4>A total of 22 publicatiAsia-Pacific journal of oncology nursing100781https://www.ebi.ac.uk/biostudies/studies/S-EPMC12538034biostudies-literatureBest evidence synthesis of preoperative prehabilitation for older patients undergoing gastrointestinal cancer surgery.PMC12538034Lai HZhang WLin QFeng MLiu MDeng MHan JfalseBest evidence synthesis of preoperative prehabilitation for older patients undergoing gastrointestinal cancer surgery.<h4>Objective</h4>To identify, evaluate, and synthesize the best available evidence on preoperative rehabilitation for older patients undergoing gastrointestinal tumor surgery.<h4>Methods</h4>Following the "6S" evidence model, a systematic search was conducted for clinical decisions, guidelines, systematic reviews, expert consensus statements, evidence summaries, and randomized controlled trials on preoperative prehabilitation for older patients with gastrointestinal tumors. Searches covered major domestic and international databases as well as professional websites, with literature collected up to 30 November 2024. Two researchers independently screened the studies, assessed methodological quality, and extracted data, with input from expert judgment.<h4>Results</h4>A total of 22 publicati2025-01-01T00:00:00Z2025 Dec2026-06-04T16:19:45.306Z2026-05-13T14:24:20.509ZS-EPMC125380344112783010.1016/j.apjon.2025.100781