Liver, biliary tract or intestinal disease
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. BMI of patients aged 18-65 years: 18.0-25 kg / m2; 2. ASA: Grade I ~ II; 3. Patients with liver, bile duct or intestinal surgery.
Exclusion criteria
Exclusion criteria: 1. Patients with major cardiovascular and cerebrovascular diseases; 2. Patients with acute respiratory distress syndrome or limited ventilation dysfunction; 3. Patients with contraindications of transesophageal ultrasound (visceral perforation, esophageal stenosis, esophageal tumor, active gastric hemorrhage, active peptic ulcer, esophageal varices, esophageal and gastric surgery history); 4. Patients with severe arrhythmia, heart valve disease, EF < 40%; 5. Patients with body weight less than 40kg or more than 100kg.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Superior vena caval collapsibility;SEN, SPE, ACC, AUC of ROC; | — |
Secondary
| Measure | Time frame |
|---|---|
| E/A;E/e'; | — |
Countries
China
Contacts
Department of Anesthesiology, People's Hospital of Peking University