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

Study Overview
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Brief Summary
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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.

Detailed Description
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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.

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

Conditions
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Nutrition Assessment, Nutritional Support, Clinical Outcomes, General Surgery

Intervention / Treatment
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* Other: no intervention


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Informed consent of patients or their legal representatives to participate in this study. patients undergoing selective operation without trauma Exclusion Criteria: Age: <18 years old or >80 years old Discharge within 24 hours Accept surgery at 8:00 next day Withdraw of patient's informed consent

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Other: no intervention|no intervention|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Morbidity of infection | Invasion of the host organism by microorganisms that can cause pathological conditions or diseases. | From date of patients enrollment until the date of infection documented from any cause, assessed up to 2 months. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Nutrition indicator | albumin/prealbumin/transferrin/retinol binding protein/IL-6 | From date of patients enrollment until the date of patients discharge from hospital, assessed up to 2 months. | 
| Length of stay in hospital | The length of patients stay in hospital. | From date of patients enrollment until the date of patients discharged from hospital, assessed up to 12 months. | 
| Actual calories intake | The total energy patients received during the study | From date of patients enrollment until the date of patients are subjected to operation, assessed up to 2 months. | 
| Mortality | All deaths reported in all enrolled patients. | From date of patients enrollment until the date of death from any cause, assessed up to 2 months after patients discharged from hospital. |