scholarly journals Predictive factors of acute skin reactions to carbon ion radiotherapy for the treatment of malignant bone and soft tissue tumors

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Yosuke Takakusagi ◽  
Jun-ichi Saitoh ◽  
Hiroki Kiyohara ◽  
Takahiro Oike ◽  
Shin-ei Noda ◽  
...  
2002 ◽  
Vol 20 (22) ◽  
pp. 4466-4471 ◽  
Author(s):  
Tadashi Kamada ◽  
Hirohiko Tsujii ◽  
Hiroshi Tsuji ◽  
Tsuyoshi Yanagi ◽  
Jun-etsu Mizoe ◽  
...  

PURPOSE: To evaluate the tolerance for and effectiveness of carbon ion radiotherapy in patients with unresectable bone and soft tissue sarcomas. PATIENTS AND METHODS: We conducted a phase I/II dose escalation study of carbon ion radiotherapy. Fifty-seven patients with 64 sites of bone and soft tissue sarcomas not suited for resection received carbon ion radiotherapy. Tumors involved the spine or paraspinous soft tissues in 19 patients, pelvis in 32 patients, and extremities in six patients. The total dose ranged from 52.8 to 73.6 gray equivalent (GyE) and was administered in 16 fixed fractions over 4 weeks (3.3 to 4.6 GyE/fraction). The median tumor size was 559 cm3 (range, 20 to 2,290 cm3). The minimum follow-up was 18 months. RESULTS: Seven of 17 patients treated with the highest total dose of 73.6 GyE experienced Radiation Therapy Oncology Group grade 3 acute skin reactions. Dose escalation was then halted at this level. No other severe acute reactions (grade > 3) were observed in this series. The overall local control rates were 88% and 73% at 1 year and 3 years of follow-up, respectively. The median survival time was 31 months (range, 2 to 60 months), and the 1- and 3-year overall survival rates were 82% and 46%, respectively. CONCLUSION: Carbon ion radiotherapy seems to be a safe and effective modality in the management of bone and soft tissue sarcomas not eligible for surgical resection, providing good local control and offering a survival advantage without unacceptable morbidity.


RADIOISOTOPES ◽  
2015 ◽  
Vol 64 (6) ◽  
pp. 427-431
Author(s):  
Hiroki KIYOHARA ◽  
Masahiko OKAMOTO ◽  
Naoko OKANO

2021 ◽  
Vol 49 (4) ◽  
pp. 030006052110097
Author(s):  
Xiaojun Li ◽  
Yanshan Zhang ◽  
Yancheng Ye ◽  
Ying Qi ◽  
Chunlan Feng ◽  
...  

Liposarcoma (LPS) is the most common soft tissue sarcoma. Myxoid LPS (MLPS) is the second most common subtype of LPS and accounts for 25% to 50% of all LPSs. Like most other soft tissue sarcomas, the mainstay of treatment for LPS is inevitably surgery. Multidisciplinary approaches, including surgery, chemotherapy, and radiotherapy, have been successful in the treatment of LPS during the last three decades. Even so, recurrence of LPS remains challenging. Carbon ion beams produce increased energy deposition at the end of their range to form a Bragg peak while minimizing irradiation damage to surrounding tissues, which facilitates more precise dosage and localization than that achieved with photon beams. Furthermore, carbon ion beams have high relative biologic effectiveness. We herein describe a patient who developed recurrent MLPS in the right calf after two surgeries and underwent carbon ion radiotherapy (CIRT), achieving complete disappearance of the tumor. The patient developed Grade 1 radiation dermatitis 30 days after CIRT, but no other acute toxicities were observed. The tumor had completely disappeared by 120 days after CIRT, and the patient remained disease-free for 27 months after CIRT. The CARE guidelines were followed in the reporting of this case.


2020 ◽  
Vol 40 (5) ◽  
pp. 2853-2859 ◽  
Author(s):  
FRANCESCO CUCCIA ◽  
MARIA ROSARIA FIORE ◽  
AMELIA BARCELLINI ◽  
ALBERTO IANNALFI ◽  
BARBARA VISCHIONI ◽  
...  

Cancers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 2591
Author(s):  
Shuichiro Komatsu ◽  
Masahiko Okamoto ◽  
Shintaro Shiba ◽  
Takuya Kaminuma ◽  
Shohei Okazaki ◽  
...  

Carbon-ion radiotherapy (CIRT) represents a definitive treatment for inoperable bone and soft tissue sarcoma (BSTS). This prospective study analyzed 61 patients with inoperable BSTS who were treated with CIRT to evaluate QOL, functional outcomes, and predictive factors in patients with inoperable BSTS treated with definitive CIRT. The Musculoskeletal Tumor Society (MSTS) scoring system and the Short Form (SF)-8 questionnaire were completed before and at 1, 3, 6, 12, and 24 months after CIRT. The median follow-up period was 38 months. The main site of primary disease was the pelvis (70.5%), and the most common pathologic diagnosis was chordoma (45.9%). The 3-year overall survival and local control rates were 87.8% and 83.8%, respectively. The MSTS score and physical component score (PCS) of SF-8 did not change significantly between the baseline and subsequent values. The mental component score of SF-8 significantly improved after CIRT. Multivariate analysis showed that the normalized MSTS and normalized PCS of SF-8 at the final follow-up were significantly affected by performance status at diagnosis and sex. CIRT showed clinical efficacy, preserving the physical component of QOL and functional outcomes and improving the mental component of QOL, suggesting its potential value for the treatment of patients with inoperable BSTS.


2011 ◽  
Vol 104 (12) ◽  
pp. 899-903
Author(s):  
Noriko Ogasawara ◽  
Naoki Hyakushima ◽  
Keisuke Kikuchi ◽  
Tomonori Nagaya ◽  
Masao Murakami ◽  
...  

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