Postopoperarive Outcomes After Colorectal Surgery in Europe (euroPOWER)

Colorectal Surgery, Perioperative Care, Postoperative Complications

Methods 30 days European Multicentre observational cohort study of postoperative complications following elective colorectal surgery within any compliance of an ERAS protocol (including patients with 0 compliance) in a participating hospital during the 30-day cohort period with a planned overnight stay. Research sites Hospitals across Europe with an elective colorrectal surgical service Objective To provide detailed data describing post-operative complications and associated mortality To provide detailed data describing adherence to ERAS protocol and its association to morbidity and length of stay. To provide detailed information on the influence of the volume of patients undergoing surgery on each center and postoperative complications censured at 30 days after surgery. Inclusion criteria All adult patients (aged ≥18 years) undergoing elective colorectal surgery during the 30-day study period. Statistical analysis Number of patients: All eligible patients undergoing elective colorectal surgery during the study month in European participating hospitals. Univariate analysis will be used to test factors (patient, surgical, and ERAS related) associated with surgical complications, length of stay (LOS) and in-hospital death. Single and multi-level logistic regression models will be constructed to identify factors independently associated with these outcomes and to adjust for differences in confounding factors. A stepwise approach will be used to enter new terms. A single final analysis is planned at the end of the study. Summary statistics with post hoc Bonferroni corrections will be used to assess possible dose- response dependence in percentage of patients with postoperative complications and LOS.

The results of this study will allow to identify, on the one hand, the type of patients presenting postoperative complications and, on the other hand, to identify those items of the ERAS protocols that are independently associated with a reduction in postoperative complications and hospital stay, which will allow to focus the perioperative efforts in those items that actually improve the postoperative outcomes. * Aim 1 will establish the number of patients developing predefined postoperative complications within 30 days of surgery in adult patients undergoing elective colorectal surgery with any compliance of an ERAS protocol (including patients with 0 compliance). This will allow us to determine the actual impact of these protocols. * Aim 2 will allow us to know the type of predefined complication presented by the patients included in the ERAS protocols and in patients undergoing colorectal surgery; This will allow, on the one hand, to have a starting point for future clinical trials, and, on the other hand, to focus efforts to avoid these complications. * Aim 3 will allow us to identify those perioperative items of ERAS protocols that are actually associated with a decrease in postoperative complications. The proposed study will establish a real view of the number of patients presenting postoperative complications that will overcome the limitations of available retrospective studies and provide greater insight into the items of the protocols that are associated with decreased complications; on the other hand, our hypothesis is that the number of patients who develop predefined postoperative complications within 30 days of surgery decreases as there is greater compliance with the predefined ERAS protocol items

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