Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable view of the chest demonstrates hyperexpanded lungs . Severe cardiomegaly is redemonstrated . Moderate pulmonary edema persists . No pleural effusions or pneumothorax . Aorta appears tortuous . Single AICD device lead projects over right ventricle .
    OUTPUT:
    
Severe cardiomegaly and moderate pulmonary edema , essentially unchanged since ___ exam .