None
Conditions
Interventions
Observation group:None
Sponsors
The First Medical Center of the PLA General Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. Outpatients scheduled to undergo routine gastrointestinal endoscopy at our hospital; 2. Aged 18–80 years; 3. Voluntarily comply with the study protocol and sign the informed consent form; 4. Able to cooperate in completing transabdominal ultrasound and relevant data collection.
Exclusion criteria
Exclusion criteria: 1. Patients with contraindications to transabdominal ultrasound (e.g., severe obesity, abdominal adhesions due to prior abdominal surgery, gastrointestinal perforation, massive ascites, etc.); 2. Patients with severely impaired gastric emptying (e.g., gastroparesis, pyloric obstruction, etc.); 3.Patients with severe hepatic or renal insufficiency, coagulation disorders, or psychiatric disorders precluding cooperation; 4. Pregnant or lactating women; 5. Patients with acute conditions within the past week, such as gastrointestinal bleeding, severe vomiting, or abdominal pain; 6. Patients who refuse to participate in the study or are unable to complete follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Antral cross sectional area (CSA) ; Gastric volume (GV) ;Volume of gastric fluid ; | — |
Secondary
| Measure | Time frame |
|---|---|
| Optimal timing of gastrointestinal endoscopy in different stratified populations; Dynamic change curve of gastric volume; | — |
Countries
China
Contacts
Public ContactWang Yingying
The First Medical Center of the PLA General Hospital
Outcome results
None listed