Implementing Enhanced Perioperative Care in Emergency General Surgery: A Prospective Multicenter Observational Study.

"Declarations Conflict of interestAll the authors have no conflict of interest to declare. Ethical approvalThe study protocol was approved by the Ethical Committee of the promoting center (n. 0012747 08/10/2020) and was registered on clinicaltrial.gov (identifier NCT04648644). Informed consent was obtained from all patients. Conflict of interest All the authors have no conflict of interest to declare."

"Funding Open access funding provided by Università degli Studi di Milano - Bicocca within the CRUI-CARE Agreement."

"This is a prospective, observational, multicenter cohort study promoted by the Italian Society of Emergency Surgery and Trauma and the Perioperative Italian Society. Eight Italian high-volume hospitals with previous experience in enhanced recovery protocols in major elective surgery were involved. The study protocol was shared during a multidisciplinary meeting involving surgeons and anesthesiologists from each center. Supplementary Table reports the study protocol which was approved by the Ethical Committee of the promoting center (n. 0,012,747 08/10/2020) and was registered on clinicaltrial.gov (identifier NCT04648644). Declarations: Conflict of interestAll the authors have no conflict of interest to declare.: Ethical approvalThe study protocol was approved by the Ethical Committee of the promoting center (n. 0012747 08/10/2020) and was registered on clinicaltrial.gov (identifier NCT04648644). Informed consent was obtained from all patients. Ethical approval: The study protocol was approved by the Ethical Committee of the promoting center (n. 0012747 08/10/2020) and was registered on clinicaltrial.gov (identifier NCT04648644). Informed consent was obtained from all patients."