Forty patients with non-small cell lung cancer stage IIIA, aged 33-72 years were allocated to two groups in order to get therapy of two different combined modalities. All the patients were staged and considered inoperable. Staging was done by bronchoscopy, CT scan, bone scan and in patients with mediastinal lymph nodes less than 2 cm in size by thoracotomy. Group A patients were programmed to have induction chemotherapy and then radiotherapy while patients of group B to have induction chemotherapy, of the same kind as Group A and then surgery. Chemotherapy included cis-platinum 90 mg/m(2) given once every 3 weeks for 4-6 courses. Radiotherapy of Group A patients was 5000 cGy in the primary tumor site and mediastinum. Toxicity was tolerable. The following results were obtained: a) high response rate (over 70%) after chemotherapy, b) 66% of Group B patients were redered operable and c) the survival rate was significantly higher in patients with chemo-surgery versus those with chemo-radiotherapy.

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