AnonymousClerc, D.Blanco-Colino, R.Otto, A.Nepogodiev, D.Pagano, G.Schaeff, V.2024-06-122024-06-1220200007-13231365-2168https://doi.org/10.1002/bjs.11326https://hdl.handle.net/20.500.14551/24731Background Ileus is common after elective colorectal surgery, and is associated with increased adverse events and prolonged hospital stay. The aim was to assess the role of non-steroidal anti-inflammatory drugs (NSAIDs) for reducing ileus after surgery. Methods A prospective multicentre cohort study was delivered by an international, student- and trainee-led collaborative group. Adult patients undergoing elective colorectal resection between January and April 2018 were included. The primary outcome was time to gastrointestinal recovery, measured using a composite measure of bowel function and tolerance to oral intake. The impact of NSAIDs was explored using Cox regression analyses, including the results of a centre-specific survey of compliance to enhanced recovery principles. Secondary safety outcomes included anastomotic leak rate and acute kidney injury. Results A total of 4164 patients were included, with a median age of 68 (i.q.r. 57-75) years (54 center dot 9 per cent men). Some 1153 (27 center dot 7 per cent) received NSAIDs on postoperative days 1-3, of whom 1061 (92 center dot 0 per cent) received non-selective cyclo-oxygenase inhibitors. After adjustment for baseline differences, the mean time to gastrointestinal recovery did not differ significantly between patients who received NSAIDs and those who did not (4 center dot 6 versus 4 center dot 8 days; hazard ratio 1 center dot 04, 95 per cent c.i. 0 center dot 96 to 1 center dot 12; P = 0 center dot 360). There were no significant differences in anastomotic leak rate (5 center dot 4 versus 4 center dot 6 per cent; P = 0 center dot 349) or acute kidney injury (14 center dot 3 versus 13 center dot 8 per cent; P = 0 center dot 666) between the groups. Significantly fewer patients receiving NSAIDs required strong opioid analgesia (35 center dot 3 versus 56 center dot 7 per cent; P < 0 center dot 001). Conclusion NSAIDs did not reduce the time for gastrointestinal recovery after colorectal surgery, but they were safe and associated with reduced postoperative opioid requirement.en10.1002/bjs.11326info:eu-repo/semantics/openAccessAcute Kidney InjuryRiskArticle1072E161E169Q1WOS:00048916850000131595986