BACKGROUND: To determine the clinical results of radiotherapy (RT) for esophageal cancer in Japan. MATERIALS AND METHODS: A questionnaire-based survey was conducted for esophageal cancer treated by definitive RT between 1999 and 2003. Clinical results of definitive RT for patients were collected from 9 major institutions. Only patients with good performance status (PS 0-2) who received a total dose of 50 Gy or more were included. Patients were classified into three groups: (A) stage I, (B) resectable stages II-III, (C) unresectable stages III-IVA. For group A, all patients treated by RT alone or chemo-radiotherapy (CRT) were included. For groups B and C, only those treated by CRT were included. RESULTS: In total, 167 patients were included in group A, 239 in group B, and 244 in group C. Approximately half of the patients in group A were treated by CRT. The median total RT dose ranged from 60 to 66 Gy. The median and range of the 5-year overall survival rates were 56% (48-83%) for group A, 29% (12-52%) for group B, and 19% (0-31%) for group C, respectively. A wide disparity in overall survival rates was noted among the institutions. A significant correlation between the number of patients treated per year and the 5-year overall survival rate was noted for groups B and C (both p < 0.05). CONCLUSION: Although the overall survival rates for stage I esophageal cancer were excellent, a significant disparity in survival rates was noted among the institutions for stage II-IVA tumors treated by CRT.
BACKGROUND: To determine the clinical results of radiotherapy (RT) for esophageal cancer in Japan. MATERIALS AND METHODS: A questionnaire-based survey was conducted for esophageal cancer treated by definitive RT between 1999 and 2003. Clinical results of definitive RT for patients were collected from 9 major institutions. Only patients with good performance status (PS 0-2) who received a total dose of 50 Gy or more were included. Patients were classified into three groups: (A) stage I, (B) resectable stages II-III, (C) unresectable stages III-IVA. For group A, all patients treated by RT alone or chemo-radiotherapy (CRT) were included. For groups B and C, only those treated by CRT were included. RESULTS: In total, 167 patients were included in group A, 239 in group B, and 244 in group C. Approximately half of the patients in group A were treated by CRT. The median total RT dose ranged from 60 to 66 Gy. The median and range of the 5-year overall survival rates were 56% (48-83%) for group A, 29% (12-52%) for group B, and 19% (0-31%) for group C, respectively. A wide disparity in overall survival rates was noted among the institutions. A significant correlation between the number of patients treated per year and the 5-year overall survival rate was noted for groups B and C (both p < 0.05). CONCLUSION: Although the overall survival rates for stage I esophageal cancer were excellent, a significant disparity in survival rates was noted among the institutions for stage II-IVA tumors treated by CRT.
Authors: M Murakami; Y Kuroda; T Nakajima; Y Okamoto; T Mizowaki; F Kusumi; K Hajiro; S Nishimura; S Matsusue; H Takeda Journal: Int J Radiat Oncol Biol Phys Date: 1999-09-01 Impact factor: 7.038
Authors: J S Cooper; M D Guo; A Herskovic; J S Macdonald; J A Martenson; M Al-Sarraf; R Byhardt; A H Russell; J J Beitler; S Spencer; S O Asbell; M V Graham; L L Leichman Journal: JAMA Date: 1999-05-05 Impact factor: 56.272
Authors: A Ohtsu; N Boku; K Muro; K Chin; M Muto; S Yoshida; M Satake; S Ishikura; T Ogino; Y Miyata; S Seki; K Kaneko; A Nakamura Journal: J Clin Oncol Date: 1999-09 Impact factor: 44.544
Authors: M al-Sarraf; K Martz; A Herskovic; L Leichman; J S Brindle; V K Vaitkevicius; J Cooper; R Byhardt; L Davis; B Emami Journal: J Clin Oncol Date: 1997-01 Impact factor: 44.544
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Authors: K Sakai; H Inakoshi; H Sueyama; J Oda; T Ito; E Tsuchida; T Sugita; Y Matsumoto; M Saito; A Saito Journal: Int J Radiat Oncol Biol Phys Date: 1995-02-15 Impact factor: 7.038
Authors: Peter S N van Rossum; Nadia Haj Mohammad; Frank P Vleggaar; Richard van Hillegersberg Journal: Nat Rev Gastroenterol Hepatol Date: 2017-12-13 Impact factor: 46.802