Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate low lung volumes . Mild atelectasis at the bases is present . Cardiomediastinal and hilar contours are stable relative to prior examination . Note is made of an aortic valvular device similar in configuration relative to prior study . There is no pneumothorax , pleural effusion , or evidence of pulmonary edema . Imaged upper abdomen demonstrates multiple clips projecting over the left upper quadrant and midline .
    OUTPUT:
    
Status post TAVR . No acute intrathoracic abnormality .