Perioperative Nutrition and Gut Health Boost Colorectal Cancer Recovery

Colorectal cancer patients frequently face significant challenges with malnutrition and dysbiosis (an imbalance in gut microbiota) both before and after surgery, which can severely impede recovery, increase postoperative complications, and negatively impact long-term prognosis. Standard nutritional support often focuses on caloric and protein intake but may not adequately address the complex interplay between gut health, immune function, and surgical stress. This randomized clinical trial aimed to bridge this critical knowledge gap by investigating whether a comprehensive intervention combining specialized perioperative oral nutritional supplements (ONS) with targeted intestinal microecology modulation could substantially improve clinical outcomes in patients undergoing colorectal cancer surgery.

The combined ONS and intestinal microecology intervention demonstrated a statistically significant and clinically meaningful improvement across multiple key outcomes. The incidence of overall postoperative complications was reduced by a remarkable 43% in the intervention group compared to the control group (28% vs. 49%, p<0.001), with a notable 55% reduction in infectious complications (12% vs. 27%, p<0.005). > Patients in the intervention group experienced an average hospital stay that was 3.1 days shorter (6.8 days vs. 9.9 days, p<0.0001), indicating a substantially faster and smoother recovery trajectory. * Furthermore, systemic inflammatory markers, such as C-reactive protein (CRP), showed a 48% lower peak level at day 3 post-op in the intervention group (p<0.001), alongside a 2.1-fold increase in anti-inflammatory cytokine IL-10 levels (p<0.01). Immune profiling revealed a 25% preservation of CD4+/CD8+ T-cell ratio at day 7 post-op (p<0.05), suggesting enhanced immune resilience. Gut microbiome analysis confirmed a 1.8-fold increase in beneficial Bifidobacterium and Lactobacillus species and a 30% reduction in pathogenic bacteria in the intervention group.