Abstract
The long-term outcomes of gastric tube cancer (GTC) are unclear. This study therefore aimed to clarify clinicopathologic features and the long-term outcomes of patients with GTC. The 25 patients who were diagnosed with GTC between April 2003 and December 2022 at our hospital were eligible for inclusion in this retrospective study, and this included 27 lesions. We retrospectively evaluated clinicopathologic factors based on hospital records. In our cohort, 88% of incidences of GTC were located in the middle or lower gastric tube. As the treatment of GTC, we used endoscopic submucosal dissection, gastrectomy, chemoradiotherapy, chemotherapy, and best supportive care for 16 (59%), 6 (22%), 1 (4%), 1 (4%), and 3 (11%) lesions, respectively. Perforation after endoscopic submucosal dissection was observed in 6 of the 16 lesions. Partial gastric tube resection was performed for 3 patients and total gastric tube resection was performed for 3 patients. One patient who underwent total gastric tube resection died due to acute respiratory distress syndrome. In survival analysis, the 3-year overall survival rate was 52% and the 3-year disease-specific survival rate was 74%. Five patients (20%) died of aspiration pneumonia, 2 patients (8%) of another disease, and 1 patient (4%) of another type of cancer. According to multivariate analysis, independent prognostic factors for overall survival were cN status (HR, 18.021; P=0.004) and complication of aspiration pneumonia (HR, 8.373; P=0.004). The occurrence of aspiration pneumonia and cN status were prognostic factors after the treatment for GTC. Assessment of dysphagia and surveillance after treatment for GTC are important to improve the prognosis.
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