Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and later chest x-ray were obtained and compared to the immediate preceding chest radiograph . There is presence of median sternotomy wires . There is a biventricular pacing system with leads terminating in the right atrium , right ventricle , and left anterior oblique marginal vein . There are also wires from a previously placed and removed right pacer . The cardiomediastinal and hilar contours are stable . There are stable increased interstitial markings at the bilateral bases , but no new lung parenchymal opacity . There is mild blunting of the costophrenic sulci consistent with small pleural effusions ; however , there is no evidence of interstitial edema .
    OUTPUT:
    
Small bilateral pleural effusions , otherwise no acute cardiopulmonary abnormality .