Double-row staple technology versus triple-row staple technology for colorectal surgery: A systematic review and meta-analysis
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BACKGROUND: Some observational data have suggested that anastomotic leak may be reduced with triple-row staple technology compared to double-row staple technology. We aimed to investigate this further by performing a systematic review comparing double- and triple-row staple technology for colorectal anastomoses. METHODS: This systematic review was reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. MEDLINE, Embase, and Cochrane Central Register of Controlled Trials databases were searched up to November 2023. Articles were eligible for inclusion if they were comparing double-row staple and triple-row staple technology for left-sided colo-colic, colorectal, or coloanal anastomosis. The main outcomes included anastomotic leak, anastomotic hemorrhage, 30-day mortality, and reoperation. Meta-analyses with inverse variance random effects were performed. Certainty of evidence was assessed with Grading of Recommendations, Assessment, Development, and Evaluations. RESULTS: After reviewing 340 relevant citations, 6 retrospective cohort studies met inclusion. Overall, 19,372 patients (mean age: 60.2 years, 52.7% female sex) had anastomoses with double-row staple technology, and 2,298 patients (mean age: 61.3 years, 50.3% female sex) with triple-row staple technology. Most operations were anterior resections (double-row: 55.3%; triple-row: 43.6%). Across all included studies, the risk of anastomotic leak was reduced with triple-row staple technology (6.3% vs 7.5%, risk ratio 0.54, 95% confidence interval 0.31-0.94, P = .03, I2=75%). There were no significant differences in anastomotic hemorrhage (risk ratio 0.47, 95% confidence interval 0.15-1.49, P = .20, I2 = 57%), 30-day mortality (risk ratio 0.66, 95% confidence interval 0.17-2.55, P = .55, I2 = 0%), or reoperation (risk ratio 1.05, 95% confidence interval 0.42-2.64, P = .91, I2 = 56%). CONCLUSION: Triple-row staple technology may reduce the risk of anastomotic leak in left-sided colorectal anastomoses.
