Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a new left chest pacemaker with the lead overlying the right ventricle . There is no pneumothorax . Mild cardiomegaly is unchanged and there is mild bilateral lower lobe atelectasis . The lungs are otherwise clear . There are small bilateral pleural effusions .
    OUTPUT:
    
1 . Interval placement of a left chest pacemaker with the lead overlying the right ventricle . No pneumothorax . 2 . Mild bilateral lower lobe atelectasis and small bilateral pleural effusions .