Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Residual pulmonary edema is very mild , improved since ___ . The cardiac contour remains significantly enlarged with vascular engorgement unchanged since ___ but increased since ___ . There is no pleural effusion or pneumothorax . Left - sided pacemaker has leads in the right ventricle and in one of the cardiac vein to pace the left ventricle .
    OUTPUT:
    
Residual pulmonary edema is mild , improved since ___ .