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- W2056990628 abstract "To study the efficacy of late course accelerated fractionated (LCAF) radiotherapy in the treatment of nasopharyngeal carcinoma (NPC). The end-points were local control, radiation-induced complications, and factors influencing survival.Between December 1995 and April 1998, 178 consecutive NPC patients were admitted for radiation treatment. The radiation beam used was (60)Co gamma or 6 MV X rays. For the first two-thirds of the treatment, two daily fractions of 1.2 Gy were given to the primary lesion, with an interval of > or =6h, 5 days per week to a total dose of 48 Gy/40 fractions, over a period of 4 weeks. For the last third of the treatment, i.e., beginning the 5th week of treatment, an accelerated hyperfractionated schedule was carried out. The dose per fraction was increased to 1.5 Gy, 2 fractions per day with an interval of > or =6h, the total dose for this part of the protocol was 30 Gy/20 fractions over 2 weeks. Thus the total dose was 78 Gy in 60 fractions in 6 weeks.All patients completed the treatment. Acute mucositis: none in 2 cases, Grade 1 in 43 cases, Grade 2 in 78 cases, Grade 3 in 52 cases, and Grade 4 in 3 cases. Local control rate: the 5 year nasopharyngeal local control rate was 87.7%, and the cervical lymph nodes local control rate was 85.7%. The 5-year distant metastasis rate was 26.1%, and 5 year survivals were 67.9%, 16 (9%) patients had radiation-induced cranial nerve palsy, 7(4%) patients had temporal lobe or brainstem damage.With this treatment schedule, patients' tolerance was good, local control and 5 year survivals were better than conventional fractionation schedules, and radiation-related late complications did not increase, as 5-year survival rates of conventional fractionation radiotherapy were only 58%. Randomized clinical trials are being carried out to further confirm the efficacy of LCAF for nasopharyngeal carcinoma." @default.
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- W2056990628 date "2007-10-01" @default.
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- W2056990628 title "Late course accelerated hyperfractionated radiotherapy of nasopharyngeal carcinoma (LCAF)" @default.
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- W2056990628 doi "https://doi.org/10.1016/j.radonc.2007.08.005" @default.
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