The Effect of Perioperative Nutritional Assessment and Nutritional Support on Clinical Outcomes

The Effect of Perioperative Nutritional Assessment and Nutritional Support on Clinical Outcomes in Elective Abdominal Surgery Patients: A Prospective Observational Study

It is a study to evaluate the relationship between preoperative nutritional assessment and clinical outcomes and to explore the effect of preoperative nutritional support on clinical outcomes in patients after abdominal operation.

It is a multi-center prospective observational cohort study to evaluate the relationship between preoperative nutritional assessment and clinical outcomes and to explore the effect of preoperative nutritional support on clinical outcomes in patients after abdominal operation. The nutrition risk were evaluated by different methods. The nutrition support regimens and the clinical outcomes were recorded.

Inclusion Criteria:

1. Informed consent of patients or their legal representatives to participate in this study.
2. patients undergoing selective operation without trauma

Exclusion Criteria:

1. Age: <18 years old or >80 years old
2. Discharge within 24 hours
3. Accept surgery at 8:00 next day
4. Withdraw of patient's informed consent