Multicenter analysis of transanal tube placement for prevention of anastomotic leak after low anterior resection

Background

Anastomotic leak (AL) is a serious complication of low anterior resection (LAR). This study aimed to evaluate the effect of transanal tube placement for prevention of AL.

Methods

This multicenter retrospective cohort study enrolled 328 consecutive patients who underwent LAR for rectal cancer at participating hospitals from 2009 to 2014. Multivariate logistic regression was used to adjust for confounding factors.

Results

A transanal tube was placed in 205 patients (TA group) and not placed in 123 patients (non-TA group). Symptomatic AL occurred in 36 cases (11%), with significantly higher incidence of symptomatic AL in the non-TA group than in the TA group (15% vs 8.3%, odds ratio [OR] 2.02, 95% confidence interval [CI] 1.01-4.06). After adjusting for confounding factors, multivariate analysis revealed that placement of a transanal tube could decrease the incidence of symptomatic AL (adjusted OR 0.37, 95%CI 0.15-0.91). There was no significant difference in postoperative morbidity, mortality, length of hospital stay, or local recurrence rate between the two groups. Local recurrence rate tended to be higher in patients with symptomatic AL (3/36) than in those without it (10/292).

Conclusions

Transanal tube placement is effective for decreasing the incidence of symptomatic AL after LAR.

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