Pregnancy Related
Conditions
Brief summary
It has been believed that the risk of pulmonary aspiration in term pregnant women is increased, and should be considered that all term pregnant women to have full stomach. Recently, gastric ultrasound has been adopted as a useful tool for quantitative and qualitative assessment of stomach before anesthesia, and predict the risk of pulmonary aspiration. Although, both the obesity and pregnancy are known to be the risk of pulmonary aspiration, it is suggested in the American Society of Anesthesiology fasting guidelines, that the same fasting time should be applied in the obese and non-obese parturients. However, this was based on one study done in a small (10) numbers of volunteers. Therefore, the investigators aimed to compare the gastric antral cross-sectional area in both obese and non-obese term pregnant women, scheduled for elective cesarean section.
Detailed description
This study is a prospective, observational study. 42 term (≥37 weeks) pregnant, non-laboring adult women scheduled for cesarean delivery will be included in the study. They will be allowed to drink water freely, until 2 hours before the anesthesia. Gastric ultrasound will be performed in 21 non-obese women, and 21 obese women. The obesity is defined by the body mass index at term.
Interventions
OTHERWater
Drink water freely until 2 hours before anesthesia.
Sponsors
Kangbuk Samsung Hospital
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* Non laboring, term (≥37 weeks) pregnant women * Scheduled for elective cesarean section * aged ≥ 18 years old * American Society of Anesthesiology physical class 1-3
Exclusion criteria
* multigestational pregnancy * diagnosed for delayed gastric emptying (GERD, gastrointestinal disease) * diabetes
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Gastric antral cross-sectional area | 2 hours after the time allowed to drink water. | Cross-sectional area of gastric antrum assessed by ultrasonography |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Preoperative anxiety | 2 hours after the time allowed to drink water. | Preoperative anxiety is scored from 0 (never) to 10 (very much). |
| Hunger score | 2 hours after the time allowed to drink water. | Hunger score is scored from 0 (never) to 10 (very much). |
| Thirst score | 2 hours after the time allowed to drink water. | Thirst score is scored from 0 (never) to 10 (very much). |
Countries
South Korea
Outcome results
None listed