Effectiveness of rehabilitation interventions in patients with colorectal cancer: an overview of systematic reviews.

Objective: To evaluate existing evidence from published systematic reviews for the effectiveness and safety of rehabilitation interventions in adult patients with colorectal cancer.

Methods: A comprehensive literature search was conducted using medical/health science databases up to October 2024. Bibliographies of pertinent articles, journals, and grey literature were searched. Three reviewers independently selected potential reviews, assessed methodological quality, and graded the quality of evidence for outcomes using validated tools.

Results: Sixty systematic reviews (761 randomized controlled trials) evaluated 5 categories of rehabilitation interventions. Over half of the included reviews (n = 31) were of moderate-high quality. The findings suggest: moderate-quality evidence for exercise interventions for improving physical fitness and quality of life; high-quality evidence for nutritional interventions in reducing postoperative infections; high-quality evidence for multimodal prehabilitation for improved preoperative functional capacity; moderate-quality evidence for nutritional interventions for improving humoral immunity, reducing inflammation, and length of stay; moderate-quality evidence for acupuncture in improving gastrointestinal functional recovery; psychosocial interventions in improving short-term quality of life and mental health, and lifestyle interventions for improved quality of life.

Conclusion: Rehabilitation interventions yielded positive effects across multiple outcomes. However, high-quality evidence is still needed to determine the most effective rehabilitation approaches for patients with colorectal cancer.