学術雑誌論文 Carbon-ion radiotherapy for isolated para-aortic lymph node recurrence from colorectal cancer.

Isozaki, Yuka  ,  Yamada, Shigeru  ,  Kawashiro, Shohei  ,  Yasuda, Shigeo  ,  Okada, Naomi  ,  Ebner, Daniel  ,  Tsuji, Hiroshi  ,  Kamada, Tadashi

116 ( 7 )  , pp.932 - 938 , 2017-07 , Wiley
ISSN:0022-4790
内容記述
BACKGROUND: The safety and effectiveness of carbon-ion radiotherapy (CIRT) for isolated para-aortic lymph node (PALN) metastasis was evaluated retrospectively.METHODS: CIRT for isolated PALN metastasis from CRC was performed in 34 cases from June 2006 to August 2015 in our institute. A median dose of 52.8 Gy(RBE) (range, 48-52.8 Gy(RBE)) was delivered with a median daily dose of 4.4 Gy(RBE) (range, 4.0-4.4 Gy(RBE)).RESULTS: The median follow-up duration for all patients was 24.4 months (range, 7-82.8 months). There were 13 cases (38.2%) who achieved complete response after treatment. The local control rates at 2 and 3 years were 70.1% and 70.1%, respectively. The overall survival rates at 2 and 3 years were 83.3% and 63.0%, respectively. The 3-year survival rates for Stage I-III were 68.7%, while those for Stage IV was 0%. The overall survival of cases with rectal cancer or with high CA19-9 values pre-CIRT tended to be worse. The median survival period was 41.7 months. Twelve of the 34 patients survived for more than 3 years. There were no adverse effects of Grade 3 or higher.CONCLUSIONS: CIRT for isolated PALN recurrence after curative resection for CRC appears effective and safe, and it is considered a promising therapy.

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