Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is stable . Patient is status post CABG and AVR . Moderate right and small left effusions have minimally increased . Left retrocardiac atelectasis has improved . There is no pneumothorax . Sternal wires are aligned . Left mid lung opacity has continuously improving . There is no pulmonary edema
    OUTPUT:
    
Small to moderate bilateral effusions with associated atelectasis , no pulmonary edema