Melissa N N Arron1, Elisabeth J Lier2, Johannes H W de Wilt2, Martijn W J Stommel2, Harry van Goor2, Richard P G Ten Broek3. 1. Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands; Radboud Institute for Health Sciences, Nijmegen, the Netherlands. Electronic address: Melissa.Arron@radboudumc.nl. 2. Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands. 3. Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands. Electronic address: richard.tenbroek@radboudumc.nl.
Abstract
BACKGROUND: Evidence on the effect of non-steroidal anti-inflammatory drugs (NSAIDs) on anastomotic leak (AL) rate after colorectal surgery is conflicting. Effects of NSAIDs might depend on the underlying disease. This meta-analysis aimed to review the effect of NSAIDs on AL rate in a homogeneous colorectal cancer patient population. METHODS: A systematic literature search using MEDLINE and EMBASE database was performed for studies with AL as primary outcome comparing NSAID use in the early postoperative phase with no NSAID administration in colorectal cancer patients undergoing surgical resection. RESULTS: Nine studies including 10,868 patients met the inclusion criteria. The majority, 7689 patients (70.7%) underwent low anterior resection and 3050 patients (28.1%) underwent colonic resection. The pooled incidence of AL was 8.6% (95%CI 7.0-10.0). Overall AL rate after colorectal cancer surgery was not increased in patients using NSAIDs for postoperative analgesia compared to non-users (p = 0.34, RR 1.23; 95%CI 0.81-1.86). This effect remained non-significant after stratification for low anterior resections (p = 0.07). Stratification for colonic resections could not be performed because AL results for this subgroup were not reported separately. Neither non-selective NSAID use nor COX-2 selective NSAID use caused an increased AL rate (p = 0.19, p = 0.26). The results were robust throughout sensitivity analyses. CONCLUSION: Use of NSAIDs in cohorts with patients undergoing surgical resection for colorectal cancer does not increase overall AL rate. Since results were robust throughout several subgroup and sensitivity analyses, prescription of NSAIDs after colorectal cancer surgery seems safe.
BACKGROUND: Evidence on the effect of non-steroidal anti-inflammatory drugs (NSAIDs) on anastomotic leak (AL) rate after colorectal surgery is conflicting. Effects of NSAIDs might depend on the underlying disease. This meta-analysis aimed to review the effect of NSAIDs on AL rate in a homogeneous colorectal cancer patient population. METHODS: A systematic literature search using MEDLINE and EMBASE database was performed for studies with AL as primary outcome comparing NSAID use in the early postoperative phase with no NSAID administration in colorectal cancer patients undergoing surgical resection. RESULTS: Nine studies including 10,868 patients met the inclusion criteria. The majority, 7689 patients (70.7%) underwent low anterior resection and 3050 patients (28.1%) underwent colonic resection. The pooled incidence of AL was 8.6% (95%CI 7.0-10.0). Overall AL rate after colorectal cancer surgery was not increased in patients using NSAIDs for postoperative analgesia compared to non-users (p = 0.34, RR 1.23; 95%CI 0.81-1.86). This effect remained non-significant after stratification for low anterior resections (p = 0.07). Stratification for colonic resections could not be performed because AL results for this subgroup were not reported separately. Neither non-selective NSAID use nor COX-2 selective NSAID use caused an increased AL rate (p = 0.19, p = 0.26). The results were robust throughout sensitivity analyses. CONCLUSION: Use of NSAIDs in cohorts with patients undergoing surgical resection for colorectal cancer does not increase overall AL rate. Since results were robust throughout several subgroup and sensitivity analyses, prescription of NSAIDs after colorectal cancer surgery seems safe.
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