Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left pectoral pacemaker is in unchanged position with the lead projecting in the right ventricle . Status post median sternotomy for CABG and mitral valve plasty . There is a stent in the proximal left subclavian artery . Stability of the right mild pleural effusion . There is no pulmonary edema and no pneumothorax . The mediastinal and cardiac contour are within normal limits .
    OUTPUT:
    
A new pacemaker is in unchanged position with the lead projecting in the right ventricle . The rest of the exam is unchanged .