Results of Construction of Protective Loop Ileostomies and Reversal Surgery for Colorectal Surgery

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BACKGROUND: Protective loop ileostomies in colorectal surgery are constructed to reduce morbidity and reinterventions related to the primary operation. However, ileostomies are associated with stoma-related morbidity and postoperative complications following reversal surgery. Dutch national data show increased use of loop ileostomies in colorectal surgery for cancer justifying an adequate assessment of its morbidity. This study was undertaken to investigate morbidity associated with protective loop ileostomies in colorectal surgery. METHODS: Retrospectively, 118 consecutive patients undergoing left-sided colonic or rectal resection with protective loop ileostomy were included. Primary outcome was 30-day mortality. Secondary endpoints included total complication rate (including stoma-related morbidity), total reintervention risk, anastomotic leakage risk and total length of stay. RESULTS: No mortality was observed. Overall major complication, reintervention and anastomotic leakage risk for colorectal surgery were 20, 20 and 3.9%, respectively. Combined length of stay for stoma-related morbidity and reversal surgery was 12.7 days. The risk for stoma-related morbidity was 35%, and the risk for nonelective reversal was 12%. Closure rate (mean follow-up of 15 months) was 87% with a mean interval of 125 days. Reversal surgery was not correlated with mortality but with major complications (11%) and reintervention risk, anastomotic leakage risk (3.8%) and a mean length of stay of 9 days. CONCLUSION: Construction of loop ileostomies in left-sided colonic or rectal resection is associated with a low risk for anastomotic leakage at the expense of substantial stoma-related morbidity and morbidity related to reversal surgery. More accurate identification of colorectal cancer patients benefitting from protective loop ileostomy seems to be warranted.

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