[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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［Purpose］
We created a novel program of preoperative rehabilitation and nutritional support to improve postoperative outcomes. Our aims were to introduce this novel program and evaluate its efficacy in terms of nutrition, modified Glasgow Prognostic Score（mGPS）and body muscle mass．
［Methods］
Fifty‐two patients who underwent gastrointestinal surgery and met one of the three following criteria enrolled in this study：1）80 years of age and older, 2）serum albumin（Alb）level less than 3.5 g/dL, and 3）CRP level greater than 0.5 mg/dL. These patients performed muscle strengthening exercise and received a jelly beverage containing branched‐chain amino acids immediately after rehabilitation and immune‐modulating liquid diets for 7 consecutive days before surgery. Alb, PreAlb and CRP levels, grip strength（GS）and skeletal muscle mass index（SMI）were compared after preoperative support．
［Results］
Serum Alb, PreAlb and CRP levels, and mGPS after preoperative support significantly improved in comparison with those before preoperative support. However, there were no differences in GS or SMI after preoperative support．
［Conclusions］
This study suggested that our program focusing on preoperative rehabilitation and nutritional support improved Alb, PreAlb and CRP, but it had no notable effects on GS or SMI．

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