By prospective randomized controlled study, this study research plans to recruit with diagnosis of lung cancer patients, according to whether there is drug intervention were divided into treatment group and control group, compared two groups of acute radiation esophagitis in the before and after the intervention, extent of occurrence of folic acid and clinical curative effect, so as to verify whether folic acid can be used as an intervention in the treatment of radioactive esophagitis, To explore the safety of folic acid in the treatment of radioactive esophagitis and explore the standardized treatment of radioactive esophagitis.
This randomized study compared the incidence and severity of radiation esophagitis with folic acid and with conventional symptomatic treatment.