Abstract
e14573 Background: Gastric tube cancer (GTC) defined as carcinoma arising in the gastric conduit after esophagectomy, is often crucial in long-term survivors of esophageal cancer. The aim of this study was to determine the optimal approach to manage GTC. Methods: We reviewed data of 863 patients who underwent esophagectomy and reconstruction with the gastric conduit for esophageal cancer at Asan Medical Center from 1993 to 2011 and identified 28 cases of GTC. We also searched through the PubMed database and included additional 117 cases of GTC from 13 studies to conduct meta-analysis. Results: In our cases, the incidence rate of GTC was 3.2%. The median interval between esophagectomy and GTC detection was 3.1 (0.6-15.2) years. Twelve (42.9%) patients were asymptomatic and diagnosed by periodic endoscopy. The Most common histologic type of GTC was adenocarcinoma (57.1%) and fifteen (53.6%) were located on the lower third of gastric tube. Chemotherapy, total gastrectomy or palliative treatment was performed in 10, 5, 2 patients, respectively. Eleven (39.3%) patients refused the further treatment for GTC. Mean survival duration of 28 patients after the diagnosis of GTC was 29.1 months. In meta-analysis, The cumulative occurrence of 5, 8 years was 59.5%, 87.8%, respectively. Two-year survival rate of the patients who underwent endoscopic resection, surgical resection or palliative treatment was 100%, 61.6%, 5.2%, respectively. The patients who underwent endoscopic resection had a better prognosis than those who underwent surgical resection or those who received palliative treatment (p=0.047, p=0.000, respectively). Conclusions: After esophagectomy for esophageal cancer, patients had a constant risk of GTC occurrence up to 8 years approximately. The patients who diagnosed as advanced-state GTC had a poor prognosis. However, endoscopic resection as a minimally invasive treatment for early-GTC represented a feasible prognosis compared with those of operative resection or palliative treatment. Therefore, a long-term follow-up including detailed endoscopy is essential for the better outcomes in patients who underwent esophagectomy for esophageal cancer.
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