Compared to early fasting group , patients in early enteral nutrition group had a significantly shorter duration of postoperative fever [ ( 53.75.9 ) h vs. ( 64.55.8 ) h , P < 0.01 ] , a shorter interval to flatus [ ( 57.58.2 ) h vs. ( 71.87.2 ) h , P < 0.01 ] , a shorter hospital stay [ ( 6.91.4 ) d vs. ( 8.51.9 ) d , P < 0.01 ] and lower medical cost [ ( 41 8683168 ) Yuan vs. ( 45 9503714 ) Yuan , P < 0.01 ] .