Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate mild indistinctness of the pulmonary vasculature . There is no significant effusion , and no pneumothorax . The heart size remains moderately enlarged . A biventricular AICD is in place with leads in appropriate position . The mediastinal contours are stable .
    OUTPUT:
    
Moderate cardiomegaly , with mild cardiac decompensation .