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Russian Federation
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Russian Federation
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Russian Federation
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Russian Federation
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Russian Federation
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Russian Federation
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GRNTI 76.03 Медико-биологические дисциплины
GRNTI 76.33 Гигиена и эпидемиология
OKSO 14.04.02 Ядерные физика и технологии
OKSO 31.06.2001 Клиническая медицина
OKSO 31.08.08 Радиология
OKSO 32.08.12 Эпидемиология
BBK 51 Социальная гигиена и организация здравоохранения. Гигиена. Эпидемиология
BBK 534 Общая диагностика
TBK 5708 Гигиена и санитария. Эпидемиология. Медицинская экология
TBK 5712 Медицинская биология. Гистология
TBK 5734 Медицинская радиология и рентгенология
TBK 6212 Радиоактивные элементы и изотопы. Радиохимия
Purpose: To define efficiency and safety of use of the active scanning proton beam in reirradiation of recurrent malignant gliomas. Material and methods: Researched group included 26 patients who were treated on a complex of proton therapy Prometeus. 57.7 % of tumors were glioblastoma, 26.9 % – gliomas of GII and 15.4 % GIII gliomas. Proton therapy was carried out with use of the active scanning beam, image-guiding system and use of the individual fixing devices. To all patients PET/CT with 11C-methionine and MRI were carried out, target volume delineation was carried out by results of coregistration of both images. Results: Terms of observation were from 1 to 32 months. The assessment of direct efficiency is carried out at 19 patients in 3 months after completion of treatment. From the group 52.7 % of patients (n = 10) had disease stabilization. At 11.5 % (n = 3) – partial response. Tumor regression volume varied from 50 to 90 %. Progressing of a disease developed in 31.5 % of the considered cases (n = 6). Other 7 patients expect control inspection. 15.4 % (n = 4) patients developed grade 2 radiodermatitis in the field of radiation fields, the remaining 84.6 % (n = 22) had grade 1 radiodermatitis. Of the entire group of patients, only one case of the development of a late radiation complication in the form of radionecrosis is observed at an observation period of 13 months. Conclusion: Preliminary results of a research showed that performing proton therapy by the active scanning beam is the effective method of treatment of patients with the diagnosed recurrent gliomas, allowing to increase life expectancy of patients with maintaining satisfactory general condition.
proton therapy, gliomas, recurrent, reirradiation, radiation complications
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