Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Status post median sternotomy and mitral valve repair . A left chest wall dual lead pacemaker is present . The tip of the Swan Ganz catheter extends into the right pulmonary artery slightly beyond the right mediastinal border . Bibasilar chest tubes are present . The mediastinal drains have been removed as has the endotracheal tube and feeding tube . Low bilateral lung volumes and bibasilar opacities , likely reflective of atelectasis . A small left pleural effusion is present . No pneumothorax identified . The appearance of the cardiac silhouette is unchanged .
    OUTPUT:
    
Interval removal of the endotracheal tube , feeding tube and mediastinal drains . Unchanged bibasilar atelectasis and a small left pleural effusion .