Abstract. The study included 135 breast cancer patients (70 patients with locally recurrent breast cancer and 65 patients with locally advanced breast cancer with unfavorable prognostic factors) who received the neutron therapy alone or in combination with the photon therapy. The neutron therapy was shown to be effective in multimodality treatment of patients with locally advanced and locally recurrent breast cancer. The 8-year survival rate in patients without repeated breast cancer recurrence was 87.6 ± 8.7% after the neutron and neutron-photon therapy and 54.3 ± 9.2% after the electron beam therapy.

The purpose of the study is to present the 10-year results of the combined modality treatment with the use of neutron-photon therapy for patients with T2-4N0-2M0 locally advanced breast cancer (LABC). The study involved 246 LABC patients (T2-4N0-2M0). Analysis of long-term results of multimodality treatment of patients with primary LABC has shown that preoperative neutron therapy is the most effective in the presence of multicentric tumors, radioresistance to neoadjuvant chemotherapy and other adverse prognostic factors.

Представлены результаты комплексного и комбинированного лечения с применением быстрых нейтронов у больных с резистентными формами злокачественных новообразований различных локализаций. Оценка эффективности нейтронной терапии на циклотроне У-120 проведена по критериям резорбции опухоли, продолжительности безрецидивного периода и пятилетней выживаемости. При применении нейтронной и нейтронно-фотонной терапии как при комбинированном лечении, так в виде самостоятельного метода лучевого лечения показана ее большая эффективность по сравнению с фотонной терапией. Разработана комплексная программа по предупреждению и лечению острых лучевых повреждений, возникающих при нейтронной и нейтронно-фотонной терапии.Ключевые слова: нейтронная терапия, рецидив рака молочной железы, злокачественные новообразования головы и шеи, лучевые реакции.

Abstract. The purpose of this study was to analyze the results of the combined modality treatment and radiation therapy using 6.3 MeV fast neutrons for salivary gland cancer and prognostically unfavorable thyroid gland cancer. The study group comprised 127 patients with salivary gland cancer and 46 patients with thyroid gland cancer, who received neutron therapy alone and in combination with surgery. The results obtained demonstrated that the combined modality treatment including fast neutron therapy led to encouraging local control in patients with salivary and thyroid gland cancers.

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