The CHO group had significantly lower levels of anxiety (p < 0.01), hunger (p < 0.01), and thirst (p < 0.01); lower incidence of PLS (p < 0.01) and abdominal distention (p < 0.05); earlier occurrence of first flatus (p < 0.01); and fewer hospitalization days (p < 0.01) than patients from the FAST group.