Radiotherapy for elderly non-small cell lung cancer patients.

Elderly patients with lung cancer tend to have significant coexisting diseases and less aggressive treatment is often required. To investigate the clinicopathological features of non-small cell lung cancer (NSCLC) in elderly patients who were treated with radiotherapy, we reviewed the medical records at our division. Among the 189 patients 70 years or older between 1992 and 2001, 28 (14.8%) patients were treated with radiotherapy (elderly group). In the elderly group, there was a medical history of chronic obstructive pulmonary disease (COPD) (57.1%), cardiovascular disease (32.1%), diabetes mellitus (18.5%), malignant disease (18.5%), or cerebrovascular disease (10.7%). Moreover, in the elderly group, 17 (60.7%) patients had two or three coexisting diseases. There was statistical difference between the elderly group and the younger group (less than 70 years patients) with regard to COPD (p<0.001). Also there was statistical difference between the elderly group and the younger group with regard to number of coexisting diseases (p=0.002). In the elderly group, forced expiratory volume in one second (FEV1), forced expiratory volume (FVC), FEV1/FVC and diffusing capacity of the lung for carbon monoxide (DLCO) were statistically significant impaired to compare with those in the younger group (p<0.001, p=0.030, p<0.001 and p=0.024, respectively). In the elderly group, 10.7% of patients had concurrent chemoradiotherapy, however, 38.5% of patients of the younger group received concurrent chemoradiotherapy. There was a statistical difference between the two groups (p=0.026). Adequate palliative care to provide prolonged quality survival is an appropriate primary goal of therapy for lung cancer in the elderly and radiotherapy is thought be one of the less invasive treatments.