Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to severe cardiomegaly is similar to the prior study with slightly increased mild pulmonary vascular congestion without frank pulmonary edema . There is no pleural effusion , focal consolidation , or pneumothorax . A cardiac device projects over the left chest with a lead ending in the region of the SVC , unchanged .
    OUTPUT:
    
Moderate to severe cardiomegaly with slight interval increase in mild pulmonary vascular congestion without frank pulmonary edema .