Introduction
Introduction of the Enhanced Recovery After Surgery (ERAS) program has improved postoperative outcomes. The aim of this study was to investigate the feasibility and safety of a 23-hour accelerated ERAS protocol for patients undergoing colorectal surgery.

Methods
This single-center, non-randomized, prospective study was carried out in one large teaching hospital in the Netherlands. Patients (≥ 18 years ≤ 80) undergoing elective laparoscopic surgical resection, were invited to participate in this study if they met the following criteria: BMI ≤ 35 kg/m2, WHO performance status 0, available ambulant care and available by phone. The 23-hour accelerated ERAS protocol consisted of a multidisciplinary and multifaceted protocol adjusting the preoperative, perioperative and postoperative care as previously reported by Levy et al. If patients met the discharge criteria, they were discharged within 23-hours after surgery.  Primary outcome was the rate of the successful and safe application of the 23-hour accelerated ERAS protocol.

Results
Sixty-seven patients were eligible for inclusion, of whom 44 patients were included. Three patients were excluded; two due to conversion to an open procedure and one because of incorrect anesthesia. The preliminary results have shown that
33 (80%) patients were discharged on postoperative day 1 of initial admission.
Seven (17%) patients were readmitted. Twelve patients (29%) had a complication, of which 2 (5%) patients required reoperation; one patient had an anastomotic leakage and one patient had a trocar hernia. All patients rated the program ≥ 7, 76% even ≥ 9.

Conclusion
This study was the first Dutch study assessing the feasibility and safety of a 23-hour accelerated protocol for colorectal surgery. The preliminary results of our data suggest that: accelerated recovery with the CHASE protocol is feasible for the majority of patients, few patients developed a major complication requiring reoperation and all patients have appraised the program positively.