Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is severe cardiomegaly and a right - sided aortic arch , which are unchanged from prior studies . An AICD and its leads are unchanged . There is no pneumothorax . There is no pleural effusion . Pulmonary vascularity is mildly prominent without frank pulmonary edema .
    OUTPUT:
    
No evidence of decompensated CHF .