Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right sided dual lead pacemaker in device with 1 lead ending in the right atrium and the other in the right ventricle is new . No pneumothorax . Mild to moderate pulmonary vascular congestion is overall unchanged . Moderate cardiomegaly is overall unchanged . The descending aorta is slightly tortuous or ectatic , unchanged . Lung volumes are slightly low , compatible with recent procedure . Bilateral left greater than right atelectasis is overall unchanged .
    OUTPUT:
    
No pneumothorax after placement of right - sided cardiac pacemaker . No significant interval change otherwise .