The Effect of PHGG-rich Enteral Nutrition to on the Infection in Liver Transplant Recipients: A Prospective, Double-blind, Randomized Controlled Study

Inclusion Criteria: 1. liver transplant recipients 2. age from 18 to 80 years old 3. APACHE II score \>12 4. There is an indication for enteral nutrition and it is expected to require oral or tube feeding for more than 7 days 5. there is no intra-abdominal infection or bloodstream infection Exclusion Criteria: 1. Severe cardiac, kidney and lung dysfunction 2. bowel obstruction, intestinal perforation, intestinal leakage before operation 3. Roux and Y anastomosis during liver transplant