Outcomes of enhanced recovery after surgery (ERAS) in gynecologic oncology - A systematic review and meta-analysis

Gynecol Oncol. 2021 Apr;161(1):46-55. doi: 10.1016/j.ygyno.2020.12.035. Epub 2020 Dec 30.


Objective: To assess the benefit of Enhanced Recovery After Surgery (ERAS) on length of stay (LOS), postoperative complications, 30-day readmission, and cost in gynecologic oncology.

Methods: A systematic literature search was performed in MEDLINE, EMBASE, Cochrane Register of Controlled Trials, and Web of Science for all peer-reviewed cohort studies and controlled trials on ERAS involving gynecologic oncology patients. Abstracts, commentaries, non-controlled studies, and studies without specific data on gynecologic oncology patients were excluded. Meta-analysis was performed on the primary endpoint of LOS. Subgroup analyses were performed based on risk of bias of the studies included, number of ERAS elements, and ERAS compliance. Secondary endpoints were readmission rate, complications, and cost.

Results: A total of 31 studies (6703 patients) were included: 5 randomized controlled trials, and 26 cohort studies. Meta-analysis of 27 studies (6345 patients) demonstrated a decrease in LOS of 1.6 days (95% confidence interval, CI 1.2-2.1) with ERAS implementation. Meta-analysis of 21 studies (4974 patients) demonstrated a 32% reduction in complications (OR 0.68, 95% CI 0.55-0.83) and a 20% reduction in readmission (OR 0.80, 95% CI 0.64-0.99) for ERAS patients. There was no difference in 30-day postoperative mortality (OR 0.61, 95% CI 0.23-1.6) for ERAS patients compared to controls. No difference in the odds of complications or reduction in LOS was observed based on number of included ERAS elements or reported compliance with ERAS interventions. The mean cost savings for ERAS patients was $2129 USD (95% CI $712 - $3544).

Conclusions: ERAS protocols decrease LOS, complications, and cost without increasing rates of readmission or mortality in gynecologic oncology surgery. This evidence supports implementation of ERAS as standard of care in gynecologic oncology.

Keywords: ERAS; Enhanced recovery after surgery; Gynecologic oncology; Meta-analysis; Systematic review.

Publication types

  • Meta-Analysis
  • Systematic Review

MeSH terms

  • Cytoreduction Surgical Procedures / methods
  • Cytoreduction Surgical Procedures / standards
  • Enhanced Recovery After Surgery*
  • Female
  • Genital Neoplasms, Female / surgery*
  • Gynecologic Surgical Procedures / methods
  • Gynecologic Surgical Procedures / standards
  • Humans
  • Randomized Controlled Trials as Topic
  • Treatment Outcome