Abstract
In 1991, we started a clinical prospective trial for operable esophageal carcinoma, foreseeing organ preservation, to assess the treatment results after definitive chemoradiotherapy (CRT) for clinical Stage I (T1N0M0) esophageal cancer. Between 1992 and 2003, 63 patients were enrolled in this study. Tumor depth was mucosal cancer (T1a) in 23 and submucosal cancer (T1b) in 40. CRT consisted of 55-66 Gy/50-60 fractions (median, 59.4 Gy); from 1 to 3 cycles (median, 2) of concurrent chemotherapy (Cisplatin and 5-fluorouracil), followed by high-dose-rate intraluminal brachytherapy 10-12 Gy/2-3 fractions. The 5-year overall and cause-specific and disease-free survival rates were 66.4%, 76.3%, and 63.7%, respectively. The 5-year cause-specific survival rates for T1a and T1b cancer patients were 85.2% and 70.0%, respectively (p = 0.06). The 5-year disease-free survival rates for T1a and T1b were 84.4% and 50.5%, respectively (p < 0.01). Esophageal fistula as a late toxicity occurred in 2 patients (G4: 1; G5: 1), and esophageal stricture requiring a liquid diet occurred in 2 patients. Pericardial effusion was observed in 3 patients. We confirmed that patients with T1N0M0 esophageal carcinoma had their esophagus preserved in 89.2% of ca...Continue Reading
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