Acute physiology and chronic health evaluation ll ( APACHE ll ) score in Xuebijing group was significantly lower than that in control group ( 4.18 3.75 vs. 4.53 2.34 , t = 5.328 , P = 0.027 ) , and the first passage of flatus and defecation after operation in Xuebijing group were significantly earlier than those in control group [ exhaust time ( days ) : 3 ( 2-4 ) vs. 3 ( 2-4 ) , U = -2.023 , P = 0.043 ; defecation time ( days ) : 4 ( 2-6 ) vs. 5 ( 3-8 ) , U = -2.926 , P = 0.003 J. However , no difference was found between two groups in the postoperative and total hospital days .