Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post aortic and mitral valve replacement . A pacer is seen overlying the left chest and the wires are seen intact along the expected courses . Sternotomy wires are again seen . The lungs are well expanded and clear . There is no evidence of pulmonary edema or focal collection . Cardiomegaly is seen . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Cardiomegaly . Otherwise , unremarkable chest radiographs .