Cardiovascular Injury and Cardiac Fitness in Locally Advanced Non-Small Cell Lung Cancer Patients Receiving Model Based Personalized Chemoradiation

PRIMARY OBJECTIVE: I.To longitudinally assess cardiac injury (serum biomarkers, and grade \>=2 cardiac events), and overall cardiac fitness (6-minute-walk test) in LA-NSCLC patients receiving chemoradiation. OUTLINE: Patients undergo single photon emission computed tomography (SPECT)/computed tomography (CT) with stress test and echocardiogram with strain before radiation therapy (RT), 6-8 weeks and 12 months after completion of RT. Patients also participate in 6 minute walk test (MWT) before RT, 2-3 and 6-7 weeks during RT, then 6-8 weeks, 4-6 months and 12 months after completion of RT. Patients undergo blood sample collection and complete questionnaires over 3-5 minutes before RT, 2-3, 4-5, 6-7 weeks after the initiation of RT, then at 3, 6, 12, and 24 months after completion of RT. After completion of study treatment, patients are followed up annually for up to 10 years.