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Temporary diverting stoma might be a protective factor for the prevention of anastomotic leakage (AL) after anterior resection. Its role in leakage recovery is unknown. This study aimed to evaluate the effect of temporary diverting stoma on anastomotic leakage severity and recovery. We analyzed 323 patients who underwent anterior resection for rectal cancer and developed anastomotic leakage, in which 44 had temporary diverting stoma. Association between diverting stoma and occurrence of anastomotic leakage, recovery time, length of hospital stay, overall costs, local and distant relapse-free survival were further studied. In non-severe AL group, temporary diverting stoma improved leakage recovery by 4 days (mean: 20.7 days vs. 16.1 days,  p  = 0.031), especially in patients who did not receive neoadjuvant treatment (mean time: 20.9 days vs. 14.4 days,  p  = 0.016). However, it did not delay the occurrence of anastomotic leakage. Moreover, no significant difference was found in the overall length of hospital stay and costs among patients with versus without a diverting stoma. In severe AL group, however, no difference was detected. The advantage of shortened leakage recovery did not reduce the local and distant relapse-free survival. In conclusion, our findings indicated the recovery benefit from diverting stoma in patients with anterior resection.

Temporary Diverting Stoma Improves Recovery of Anastomotic Leakage after Anterior Resection for Rectal Cancer