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Sequential Chemotherapy and Boost Intensity Modulated Radiation Therapy for 31 Cases with Non-small Cell Lung Cancer Stage Ⅲ

LI Ping,XING Lu-qi,(Guangfu Hospital of Jinhua,Jinhua 321000,China)  
[Purpose] To compare the efficacy and toxicity of sequential chemotherapy and boost intensity modulated radiation therapy(IMRT)with sequential chemotherapy and conventional radiotherapy for non-small cell lung cancer(NSCLC)stage Ⅲ.[Methods] Eighty-seven cases of stage Ⅲ non-small cell lung cancer were divided into 2 groups:group A and group B.Thirty-one cases of group A were treated with sequential vinorelbine and cisplatin regimen 1~2 cycles,conventional radiotherapy 40Gy/20f,4W,and boost IMRT with a total dose of(70~74)Gy/(35~37)f,and after radiotherapy chemotherapy to be continued.Fifty-six cases of group B were treated with sequential vinorelbine and cisplatin regimen and conventional radiotherapy with a total dose of(60~64)Gy/(30~32)f,(6~7)W.[Results] Eighty-seven cases followed up for 24 to 36 months.The overall response rate,1-and 2-year survival rates in group A and group B were 80.65% vs.76.56%,51.61% vs.35.71% and 35.48% vs.17.86% respectively with no significant difference.The radiation esophagitis,radiation pneumonitis and myelosuppression in group A and group B were 58.06% vs.79.64%,6.45% vs.16.07% and 54.83% vs.85.71% respectively with no significant difference.[Conclusions] The efficacy of sequential chemotherapy and boost IMRT is close to conventional sequential radiotherapy and chemotherapy for NSCLC without increasing toxicity.
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