Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminating 4 .7 cm above the carina , multiple skin ___ , Swan - Ganz catheter terminating at the right ventricular outflow tract , mediastinal drains , external pacer wires , and a left thoracostomy tube are unchanged in position . Since the ___ , 2 :03 a .m . examination there has been interval improvement of moderate pulmonary edema and decreased upper mediastinal widening . A small right pleural effusion appears new . There is no pneumothorax .
    OUTPUT:
    
1 . New small right pleural effusion . 2 . Improved moderate pulmonary edema . 3 . Decreased mediastinal widening . 4 . Unchanged position of multiple support devices .