Preoperative Fasting
Conditions
Brief summary
The investigators evaluate gastric emptying time of common Korean meals (rice, noodles) in healthy volunteers.
Detailed description
The investigators assess the gastric volume and contents of healthy volunteers at 4, 5, 6, 7, 8 hours after eating common Korean meal (rice or noodle) using a ultrasonography.
Interventions
OTHEREvaluation of gastric volume and content
The gastric volume and gastric content are assessed at 4, 5, 6, 7, and 8 hours after eating a meal.
Sponsors
SMG-SNU Boramae Medical Center
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
20 Years to No maximum
Inclusion criteria
* Adult healthy volunteers
Exclusion criteria
* History of gastrectomy * Anatomical abnormalities or mass of stomach
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Gastric emptying time | 1 hour | The time for digesting a meal |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of full stomach | At 4, 5, 6, 7, and 8 hours after eating a meal. | The incidence of full stomach is assessed by using ultrasonography. |
| Cross sectional area of the stomach | At 4, 5, 6, 7, and 8 hours after eating a meal. | The cross sectional area of the stomach is assessed by using ultrasonography in the supine and right lateral positions. |
| Gastric volume | At 4, 5, 6, 7, and 8 hours after eating a meal. | The volume of stomach is assessed using the following formula; volume of stomach (mL) = 27.0 + 14.6 x cross-sectional area (right lateral position) - 1.28 x age. |
| Type of gastric contents | At 4, 5, 6, 7, and 8 hours after eating a meal. | The type of gastric contents is assessed using ultrasonography. |
Outcome results
None listed