Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Dual lead pacemaker in similar position with the tips in the right atrium and right ventricle . Lung volumes are stable . There is no pneumothorax . No pleural effusions . Areas of non characteristic scarring at both the left and the right lung base . Borderline size of the cardiac silhouette . No pulmonary edema .
    OUTPUT:
    
Dual lead pacemaker in similar position with the tips in the right atrium and right ventricle .