AIM: To investigate the clinical features and prognoses of elderly patients with esophageal carcinoma and to compare the effects of radiotherapy and rates of treatment-related pneumonitis (TRP) between elderly and non-elderly patients. METHODS: A total of 236 patients with esophageal carcinoma who received radiotherapy between 2002 and 2012 were enrolled. The patients were divided into two groups: an elderly group (age ≥ 65 years) and a non-elderly group (age RESULTS: The median overall survival times after radiotherapy in the elderly and non-elderly groups were 18.5 and 20.5 mo, respectively. Cox regression analysis showed that TRP grade and tumor-node-metastasis (TNM) stage were independent prognostic factors in the elderly group. High-dose radiotherapy (> 60 Gy) was associated with a high incidence of TRP. Tumor TNM staging was significantly different between the two groups in which TRP occurred. Multivariate analysis showed that TNM stage was an independent prognostic factor. Esophageal carcinoma in elderly patients was relatively less malignant compared with that in non-elderly patients. CONCLUSION: An appropriate dose should be used to decrease the incidence of TRP in radiotherapy, and intensity modulated radiation therapy should be selected if possible.
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