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01.11.2014 | Radiotherapy

Stereotactic gamma-ray body radiation therapy for asynchronous bilateral renal cell carcinoma

verfasst von: Yi-Jun Wang, Ting-Ting Han, Jun-Xia Xue, Dong-Shu Chang, Hong-Qi Li, Ping Li, Ji-Dong Wang, Ying-Jie Wang, Ting-Yi Xia

Erschienen in: La radiologia medica | Ausgabe 11/2014

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Abstract

Purpose

To preliminarily evaluate the feasibility, therapeutic effect and toxicity of stereotactic gamma-ray body radiation therapy (γ-SBRT) for asynchronous bilateral renal cell carcinoma (bRCC).

Materials and methods

A retrospective analysis was performed on the clinical data of nine patients with asynchronous bRCC who were unable to undergo surgery and received γ-SBRT between February 2002 and May 2012. A total dose of 36–51 Gy was delivered to the 50 % isodose line covering the planning target volume at 3–5 Gy/fraction, whereas a total dose of 60–85 Gy was delivered at 5–7 Gy/fraction to the gross target volume. The local control rate (LC) and overall survival rate (OS) were calculated using the Kaplan–Meier method.

Results

Patient follow-up ended in March 2013 and the follow-up rate was 100 %. Of the nine patients, none presented with complete remission and five (55.6 %) achieved partial remission. The objective response rate was 55.6 %. The 1-, 3- and 5-year LC rates were 64.8, 43.2 and 43.2 %, respectively. The 1-, 3- and 5-year OS rates were 66.7, 53.3 and 35.6 %, respectively. Four (44.4 %) patients had an acute radiation reaction; there were two cases of grade I leukocytopenia and two cases of grade I gastrointestinal reactions. Late radiation-induced toxicity consisted of grade II gastrointestinal reactions in two patients.

Conclusion

Stereotactic gamma-ray body radiation therapy was found to be safe and effective in the treatment of asynchronous bRCC. Improved prognosis will require individualised treatment and a combination of multiple therapeutic approaches; this will be a primary research trend in the future.

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Titel: Stereotactic gamma-ray body radiation therapy for asynchronous bilateral renal cell carcinoma
verfasst von: Yi-Jun Wang
Ting-Ting Han
Jun-Xia Xue
Dong-Shu Chang
Hong-Qi Li
Ping Li
Ji-Dong Wang
Ying-Jie Wang
Ting-Yi Xia
Publikationsdatum: 01.11.2014
Verlag: Springer Milan
Erschienen in: La radiologia medica / Ausgabe 11/2014
Print ISSN: 0033-8362
Elektronische ISSN: 1826-6983
DOI: https://doi.org/10.1007/s11547-014-0402-3

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Stereotactic gamma-ray body radiation therapy for asynchronous bilateral renal cell carcinoma