Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A dual - lead pacemaker / ICD device has leads terminating in the right atrium and ventricle , respectively , as before . The patient is status post coronary artery bypass graft surgery . A moderate hiatal hernia is present . There is no pleural effusion or pneumothorax . The lungs appear clear . The bones appear demineralized .
    OUTPUT:
    
No evidence of acute disease .