PMID: 8948345Oct 1, 1996Paper

Prognostic factors in the treatment of node-negative nonsmall cell lung carcinoma with radiotherapy alone

International Journal of Radiation Oncology, Biology, Physics
P A KupelianP Allen

Abstract

For patients with early stage nonsmall cell lung carcinoma (NSCLC) but medically inoperable, aggressive radiation therapy might impact on survival. Between 1980 and 1990, 71 patients treated at MDACC by radiation therapy alone for NSCLC because of medical contradindications for surgery were analyzed. All patients had histologic or cytologic confirmation of NSCLC. The median total radiation dose was 63.23 Gy with 79% of patients receiving doses exceeding 60 Gy. The radiographic response was documented at completion of radiation therapy and 6 months after completion of radiation therapy. The median follow-up time was 36 months, ranging from 14-61 months. Overall survival rates at 3 and 5 years were 19 and 12%, respectively. The disease-specific survival (DSS) rates at 3 and 5 years were 44 and 32%, respectively. The DSS rates at 3 years by T-stage were: 49% for T1, 47% for T2, 26% for T3, and 32% for T4. The local control rates at 3 and 5 years were 66 and 56%, respectively. The local control rates at 3 years by T-stage were: 89% for T1, 61% for T2, 42% for T3, and 55% for T4. Univariately, the significant favorable prognostic factors for DSS were a KPS > or = 70, tumor size < or = 5 cm, no chest-wall invasion, and a radiation do...Continue Reading

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