Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left - pectoral cardiac device with one lead terminating in the right ventricle . Lung volumes are low and there is a small amount of right middle lobe atelectasis . Otherwise , no significant interval change . Stable prominence of the cardiomediastinal silhouette , which may be secondary to slight apical lordotic technique and low lung volumes . Stable appearance of the hila and pleura . No focal consolidation , pleural effusion , pulmonary vascular congestion , or pneumothorax .
    OUTPUT:
    
No acute intrathoracic process .