Title |
Clinical results of proton beam therapy for advanced neuroblastoma
|
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Published in |
Radiation Oncology, June 2013
|
DOI | 10.1186/1748-717x-8-142 |
Pubmed ID | |
Authors |
Yoshiko Oshiro, Masashi Mizumoto, Toshiyuki Okumura, Shinji Sugahara, Takashi Fukushima, Hitoshi Ishikawa, Tomohei Nakao, Takayuki Hashimoto, Koji Tsuboi, Haruo Ohkawa, Michio Kaneko, Hideyuki Sakurai |
Abstract |
Purpose: To evaluate the efficacy of proton beam therapy (PBT) for pediatric patients with advanced neuroblastoma. METHODS: PBT was conducted at 21 sites in 14 patients with neuroblastoma from 1984 to 2010. Most patients were difficult to treat with photon radiotherapy. Two and 6 patients were classified into stages 3 and 4, respectively, and 6 patients had recurrent disease. Seven of the 8 patients who received PBT as the initial treatment were classified as the high risk group. Eleven patients had gross residual disease before PBT and 3 had undergone intraoperative radiotherapy before PBT. Five patients received PBT for multiple sites, including remote metastases. Photon radiotherapy was used in combination with PBT for 3 patients. The PBT doses ranged from 19.8 to 45.5 GyE (median: 30.6 GyE). RESULTS: Seven patients are alive with no evidence of disease, 1 is alive with disease progression, and 6 died due to the tumor. Recurrence in the treatment field was not observed and the 3-year locoregional control rate was 82%. Severe acute radiotoxicity was not observed, but 1 patient had narrowing of the aorta and asymptomatic vertebral compression fracture at 29 years after PBT, and hair loss was prolonged in one patient. CONCLUSION: PBT may be a better alternative to photon radiotherapy for children with advanced neuroblastoma, and may be conducted safely for patients with neuroblastoma that is difficult to manage using photon beams. |
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Country | Count | As % |
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Unknown | 34 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Other | 4 | 12% |
Student > Ph. D. Student | 4 | 12% |
Student > Master | 3 | 9% |
Student > Bachelor | 2 | 6% |
Other | 4 | 12% |
Unknown | 10 | 29% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 1 | 3% |
Mathematics | 1 | 3% |
Business, Management and Accounting | 1 | 3% |
Unspecified | 1 | 3% |
Other | 4 | 12% |
Unknown | 9 | 26% |