Abstract
Abstract The route of gastric tube reconstruction after esophageal cancer resection is generally adopted as either posterior sternal or posterior mediastinal. There have been no large-scale comparative studies, and each institution has chosen a route based on its own experience. Therefore, we conducted an observational study at our institution to compare the postoperative outcomes of posterior sternal and posterior mediastinal reconstruction in gastric tube reconstruction for esophageal cancer. The study included 159 patients with thoracic esophageal cancer who underwent subtotal esophagectomy and gastric tube reconstruction (73 patients in the posterior sternal reconstruction (RS) group and 86 patients in the posterior mediastinal reconstruction (PM) group) from 2016 to 2018 and compared perioperative and postoperative complications and postoperative nutritional status. There were no differences in age, location, or pStage between the reconstructive routes, but BMI was significantly higher in RS (22.0 ± 2.9) and PM (20.8 ± 3.1). Anastomotic leakage (RS:PM = 8%:3%) and respiratory complications (RS:PM = 6%:15%) were not significantly different. PM was also significantly more common with ileus (13%). Anastomotic stenosis requiring dilation was significantly less common in PM than RS (31%:17%, p = 0.04). Weight loss was significantly higher in the RS group at 1 year postoperatively (RS/PM:13.9%/10.2%, p = 0.02). We have changed to PM with gastrostomy and the modified Collard anastomosis. These procedures have decreased the occurrence of ileus due to jejunostomy. Anastomotic stenosis was reduced to 5%. In gastric tube reconstruction after subtotal esophageal resection for esophageal cancer, the reconstructive route (posterior sternal or posterior mediastinal route) showed no significant difference in the incidence of postoperative pneumonia or anastomotic leakage. By changing the anastomotic procedure, a decrease in anastomotic stenosis was observed even with posterior sternal reconstruction. We plan to accumulate more cases and investigate the effects on quality of life and nutritional status in the future.
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