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. 2025 Aug 17;51(11):110379.
doi: 10.1016/j.ejso.2025.110379. Online ahead of print.

Enhanced recovery and survival after elective surgery for colorectal cancer - propensity score weighting analysis of 2,865 prospective patients

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Free article

Enhanced recovery and survival after elective surgery for colorectal cancer - propensity score weighting analysis of 2,865 prospective patients

Marco Catarci et al. Eur J Surg Oncol. .
Free article

Abstract

Background: The impact of enhanced recovery pathway (ERP) on survival after colorectal cancer surgery (CCS) remains controversial.

Materials and methods: A total of 2865 adults enrolled in a multicenter cohort study (iCral3 study) after CCS were followed up. The percentage adherence to the ERP was recorded, and the patients were grouped according to their quartiles. Other patient-, center-, disease-, and treatment-related factors were considered in a machine learning generalized boosted model (GBM) to estimate the 22 covariates propensity score weights for the binary comparisons between the reference treatment (1st quartile, ERP adherence rates <57.7 %) and the other treatment arms (2nd, 3rd, and 4th quartile). The primary endpoint was overall survival (OS). A GBM-weighted Cox model balanced on the same covariates was used to estimate the hazard ratio (HR) and 95 % confidence interval (95 %CI).

Results: Patients in the 4th quartile (ERP adherence rates ≥80.8 %) showed a significant lower risk of death from any cause (HR, 0.69; 95 %CI 0.49-0.96; p = 0.026).

Conclusions: High adherence to ERP was associated to a significant impact on long-term overall survival, supporting the efforts towards proper ERP implementation after CCS.

Keywords: Colorectal neoplasms; Enhanced recovery after surgery; Survival.

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Conflict of interest statement

Declaration of competing interest None.

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