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Research Article

Radiation Therapy and Concurrent Cisplatin in Management of Locoregionally Advanced Nasopharyngeal Carcinomas

Pages 1031-1035 | Published online: 08 Jul 2009
 

Abstract

Radiation therapy in combination with chemotherapy in the management of locoregionally advanced nasopharyngeal carcinomas is evaluated in an attempt to improve locoregional response, reduce locoregional failure and reduce systemic failure. The current study was designed to investigate radiation therapy and concurrent cisplatin in this context. From 1992 through 1997, 70 patients with locoregionally advanced nasopharyngeal carcinomas were treated with radiation therapy and concurrent cisplatin. External beam radiation dose was 60 Gy for T1, T2 and T3 tumors, 70 Gy for T4 tumors and 70 Gy for metastatic cervical lymph nodes. An intracavitary brachytherapy boost (10 Gy) was applied for T1, T2 and T3 tumors. Cisplatin (30 mg/m2) was administered weekly during external beam radiation therapy. Locoregional complete response was achieved in 63 patients, locoregional failure was observed in 4 patients and systemic failure was observed in 15. N-stage predicted systemic failure. Overall survival, locoregional failure-free survival and systemic failure-free survival were 63%, 79% and 75%, respectively, at three years. Grade 3 acute skin toxicity was observed in 2 patients, Grade 3 acute mucous membrane toxicity was observed in 6 and Grade 3 acute hematological toxicity was observed in 2 patients. Despite improved locoregional response, reduced locoregional failure and improved survival with radiation therapy and concurrent cisplatin, systemic failure remains prevalent for locoregionally advanced nasopharyngeal carcinomas.

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