Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior study , no change in the positioning of the left - sided vagal nerve stimulator . The ascending and descending aorta are tortuous . Cardiomediastinal silhouette is unchanged . No focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .