Compared with the GA group , the dosages of Fentanyl , Midazolam and Vecuronium of the EA + GA group were significantly lower ( P < 0.05 , P < 0.01 ) , the numbers of patients needing blood-transfusion , antibiotics treatment , and suffering from pulmonary infection were fewer , the time of first bed-off and duration of hospitalizetion and IOU residence were considerably shorter ( P < 0.05 , P < 0.01 ) and the total medical cost was obviously lower ( P < 0.05 ) in the EA + GA group .