Abstract
Abstract Background Anastomotic leakage is a major complication after esophagectomy. Recent studies reported that anastomotic leakage is associated with poor prognosis. We aimed to identify the risk factors of anastomotic leakage after esophagectomy for thoracic esophageal cancer. Methods We analyzed retrospectively consecutive patients who underwent esophagectomy with reconstruction using gastric tube by cervical anastomosis for thoracic esophageal cancer between January 2009 and December 2017. In the reconstruction, end-to side mechanical anastomosis with circular stapler through the posterior mediastinal route was preferred until 2014, and end-to end hand-sewn anastomosis through the retrosternal route was preferred from 2015. As inflammation-based and/or nutritional markers, prognostic nutritional index (PNI), modified Glasgow Prognostic Score (mGPS), Controlling Nutritional Status (CONUT) score, and neutrophil lymphocyte ratio (NLR) were investigated. Receiver operator characteristic curve analyses were performed to set the cut-off value of continuous variables. Risk factors predicting anastomotic leakage were analyzed using logistic regression model. Results A total of 170 patients (144 males and 26 females) were evaluated. Median age was 65 years (59 − 70). Anastomotic leakage was observed in 21 patients (12.3%). A mechanical anastomosis with circular stapler (P = 0.047) and longer operative time (≧560 minutes) (P = 0.015) were identified as risk factors of anastomotic leakage in univariate analysis. Multivariate analysis including variables with P < 0.1 on univariate analyses identified lower PNI (< 45) (P = 0.044, OR 2.78, 95% CI: 1.02 − 7.56) and mechanical anastomosis with a circular stapler (P = 0.036, OR 3.30, 95% CI: 1.07 − 10.09) as independent risk factors. Conclusion Our findings suggested that preoperative lower PNI and mechanical anastomosis were independent risk factors of anastomotic leakage after esophagectomy. Further studies aimed at preoperative nutritional intervention and anastomotic technique are warranted. Disclosure All authors have declared no conflicts of interest.
Published Version
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