Radiotherapy-Related Clinical and Functional Sequelae in Lung Cancer Survivors

It is known that lung cancer survivors experience sequelae due to the evolution of the disease and oncological treatment. However, there is no consensus about their sequelae after radiotherapy treatment. The aim of this study was to analyze the clinical–functional profile of lung cancer survivors who receive radiotherapy treatment. This prospective observational study evaluated lung cancer patients who were candidates for radiotherapy treatment in the oncological radiotherapy unit of San Cecilio University Hospital in Granada. Symptoms (i.e., fatigue, cough, and dyspnea), functionality (i.e., physical activity levels and muscle mass), and quality of life were evaluated pre- and post-radiotherapy treatment. Sixty-five participants were included, and sixty-one completed both evaluations. Patients showed a significant increase in symptoms (p < 0.05) and a decline in functionality (p < 0.001) after completing radiotherapy. Quality of life was significantly lower after completing radiotherapy treatment (p < 0.05). Lung cancer survivors showed an increase in symptoms, a decline in physical activity levels, and a decline in perceived quality of life after receiving radiotherapy treatment. These results provide more accurate knowledge about the functional impairment experienced by lung cancer patients and can facilitate the future management of impairment in lung cancer patients, thus improving their quality of life.