Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left chest wall vagal nerve stimulator is again seen with catheter extending to the left neck soft tissues . Lung volumes are low . Lungs appear clear . No definite signs of pneumonia or edema . No large effusion or pneumothorax . Cardiomediastinal silhouette appears normal . There is a mid thoracic vertebral body compression deformity which is unchanged from ___
    OUTPUT:
    
No acute findings .