Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is the left pectoral generator with leads terminating in the right atrium and right ventricle . There is no evidence of pneumothorax . Bilateral pleural effusions are unchanged . Moderate cardiomegaly is unchanged . There is mild improvement in pulmonary vascular congestion and pulmonary edema . Mediastinal silhouette is unremarkable .
    OUTPUT:
    
1 . Left - sided pacemaker with leads terminating in the return right ventricle . No pneumothorax . 2 . Mildly improved pulmonary vascular congestion and edema .