pregnant
Conditions
Interventions
no-eating group (group N):duration of fasting and water-deprivation is at least 8 hours
group E2:duration of fasting and water-deprivation is less than 2 hours
group E4:duration of fasting and water-deprivation is between 2 and 4 hours
group E6:duration of fasting and water-deprivation is between 4 and 6 hours
group E8:duration of fasting and water-deprivation is between 6 and 8 hours
Sponsors
West China Second Hospital, Sichuan University
Eligibility
Sex/Gender
Female
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Parturient women =37 gestational weeks; 2. Parturient women=18 years of age; 3. Parturient women whose ASA physical status is I to III; 4. Parturient women weight 50 to 120 kg; 5. Parturient women height =150 cm.
Exclusion criteria
Exclusion criteria: 1) Parturient women who has a history of upper gastrointestinal disorders, including upper gastrointestinal surgery, abnormal anatomy of the upper gastrointestinal tract, peptic ulcer or gastroesophageal reflux disease; 2) Parturient women with pregnancy-induced hypertension; 3) Parturient women with intrahepatic cholestasis of pregnancy; 4) pregnancy associated with diabetes; 5) pregnancy associated with pancreatitis; 6) Parturient women with gastric fundus esophagus varices or cirrhosis of liver.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| qualitative and quantitative sonographic patterns of the gastric antrum; | — |
Secondary
| Measure | Time frame |
|---|---|
| progestogen level;the tone of the lower esophageal sphincter;the incidence of nausea and vomiting; | — |
Countries
China
Contacts
Public ContactLan Wu
West China Second Hospital, Sichuan University
Outcome results
None listed