Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: THERE IS A SMALL LEFT AND SMALL RIGHT PLEURAL EFFUSION . THE CARDIAC SIZE REMAINS MILDLY ENLARGED . NUMEROUS POST CABG AND POST AORTIC VALVE REPLACEMENT SURGICAL CLIPS ARE SEEN . THE PATIENT IS STATUS POST MEDIAN STERNOTOMY . FLUID IS NOTED IN THE MINOR FISSURE ON THE RIGHT . THERE IS MINOR INCREASE IN INTERSTITIAL MARKINGS , IMPROVED SINCE THE PRIOR STUDY .
    OUTPUT:
    
SMALL BILATERAL PLEURAL EFFUSIONS AND MINIMAL INCREASE IN INTERSTITIAL MARKINGS COMPATIBLE WITH CONGESTIVE HEART FAILURE , IMPROVING FROM THE EXAM FROM 5 HOURS PRIOR .