Background Many surgeons routinely place intraperitoneal drains after elective colorectal surgery. However, enhanced recovery after surgery guidelines recommend against their routine use owing to a lack of clear clinical benefit. This study aimed to describe international variation in intraperitoneal drain placement and the safety of this practice. Methods COMPASS (COMPlicAted intra-abdominal collectionS after colorectal Surgery) was a prospective, international, cohort study which enrolled consecutive adults undergoing elective colorectal surgery (February to March 2020). The primary outcome was the rate of intraperitoneal drain placement. Secondary outcomes included: rate and time to diagnosis of postoperative intraperitoneal collections; rate of surgical site infections (SSIs); time to discharge; and 30-day major postoperative complications (Clavien–Dindo grade at least III). After propensity score matching, multivariable logistic regression and Cox proportional hazards regression were used to estimate the independent association of the secondary outcomes with drain placement. Results Overall, 1805 patients from 22 countries were included (798 women, 44.2 per cent; median age 67.0 years). The drain insertion rate was 51.9 per cent (937 patients). After matching, drains were not associated with reduced rates (odds ratio (OR) 1.33, 95 per cent c.i. 0.79 to 2.23; P = 0.287) or earlier detection (hazard ratio (HR) 0.87, 0.33 to 2.31; P = 0.780) of collections. Although not associated with worse major postoperative complications (OR 1.09, 0.68 to 1.75; P = 0.709), drains were associated with delayed hospital discharge (HR 0.58, 0.52 to 0.66; P < 0.001) and an increased risk of SSIs (OR 2.47, 1.50 to 4.05; P < 0.001). Conclusion Intraperitoneal drain placement after elective colorectal surgery is not associated with earlier detection of postoperative collections, but prolongs hospital stay and increases SSI risk.

Goals: The goals are to assess the use of Double Jendo-prostheses in urinary obstructions in the Hospital General de Grand Yoff of Dakar (HOGGY). Patients and methods: This is a 4-year retrospective study (1 st January 2009-31 st December 2012). The study included all patients with obstruction of the upper urinary tract, and with a reversing type Double Jendo-prostheses. Findings: A total of 82 patients were chosen for this study, including 41 males. Patient's average age was 45 years. Kidney failure accounted for 11.5% of the causes of consultations. Lithiasic obstacles (34.2%) and tumours (21.5%) were the most recurrent. Catheter was successfully placed in 78% of cases, and highly contributed to improve renal function in 69% of cases. The frequently complications found in patients with Double J Catheters were back pain and urinary tract infections. Four cases of catheters calcifications were reported. Catheter was replaced in 62.2% of patients within an average period of 6.9 months. Conclusion: Double J Catheters remain important in the preservation of renal function in case of obstruction. Its use requires a mastery of these indications and a rigorous follow-up.