title: Enhanced recovery program in colorectal surgery: a meta-analysis of randomized controlled trials.
abstract: BACKGROUND
  Meta-analyses in the literature show that enhanced recovery after surgery (ERAS) is associated with lower morbidity rate and shorter hospital stay after elective colorectal surgery. However, a recent Cochrane review did not indicate the ERAS pathway as being the new standard of care due to the limited number of published trials, together with their poor quality. We conducted a meta-analysis of randomized controlled trials (RCTs) to assess the impact of the ERAS pathway on overall morbidity, single postoperative complications, length of hospital stay, and readmission rate following colorectal surgery.
  
  
  METHODS
  We searched BioMedCentral, PubMed, Scopus, and the Cochrane Central Register of Controlled Trials (CENTRAL) for RCTs comparing the ERAS pathway to conventional perioperative care. No language restrictions were considered. A quality score was calculated for each trial included.
  
  
  RESULTS
  A total of 2,376 patients in 16 RCTs were included in the analysis. The ERAS pathway was associated with a reduction of overall morbidity [relative ratio (RR) = 0.60, (95 % CI 0.46-0.76)], particularly with respect to nonsurgical complications [RR = 0.40, (95 % CI 0.27-0.61)]. The reduction of surgical complications was not significant [RR = 0.76, (95 % CI 0.54-1.08)]. The ERAS pathway shortened hospital stay (WMD = -2.28 days [95 % CI -3.09 to -1.47]), without increasing readmission rate.
  
  
  CONCLUSIONS
  The ERAS pathway reduced overall morbidity rates and shortened the length of hospital stay, without increasing readmission rates. A significant reduction in nonsurgical complications was evident, while no significant reduction was found for surgical complications.
authors.affiliation: Department of Anesthesiology, San Raffaele Hospital, Vita-Salute University, Via Olgettina 60, 20132, Milan, Italy, greco.massimiliano@hsr.it.
authors.forename: Massimiliano
authors.initials: M
authors.lastname: Greco
authors.forename: Giovanni
authors.initials: G
authors.lastname: Capretti
authors.forename: Luigi
authors.initials: L
authors.lastname: Beretta
authors.forename: Marco
authors.initials: M
authors.lastname: Gemma
authors.forename: Nicolò
authors.initials: N
authors.lastname: Pecorelli
authors.forename: Marco
authors.initials: M
authors.lastname: Braga
mesh_terms: D003082:Colectomy / Q000009:adverse effects / Q000379:methods*; D015179:Colorectal Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007558:Italy; D007902:Length of Stay; D008297:Male; D010348:Patient Care Team / Q000458:organization & administration*; D010359:Patient Readmission / Q000706:statistics & numerical data; D019990:Perioperative Care / Q000379:methods*; D011379:Prognosis; D016730:Program Development; D015397:Program Evaluation; D058996:Quality Improvement; D016032:Randomized Controlled Trials as Topic; D016019:Survival Analysis