RESUMEN
<p><b>OBJECTIVE</b>To study the therapeutic result of operation combined chemotherapy for stage IIIa non-small cell lung cancer.</p><p><b>METHODS</b>From January 2000 to December 2003, the data of 83 cases with stage IIIa non-small cell lung cancer undergoing operation combined chemotherapy and 33 cases with stage IIIa non-small cell lung cancer undergoing non-operative therapy were retrospectively analyzed. The median survival time and the 1-, 2-, 3- year survival rates of the two groups were compared by the Kaplan-Meier method.</p><p><b>RESULTS</b>The median survival time of the operation group was 20.3 months, and the 1-, 2-, 3- year survival rates were 85%, 70%, and 35% respectively. The median survival time of the non-operation group was 14.5 months and the 1-, 2-, 3- year survival rates were 75%, 33%, and 15% respectively.</p><p><b>CONCLUSION</b>The therapeutic result of the operation combined chemotherapy for the stage IIIa non-small cell lung cancer is better than that of the non-operative therapy obviously.</p>