Gastric ultrasound after drinking clear fluids in pregnant women with and without diabetes
Effect of Preoperative Clear Fluid Intake on Gastric Volume in Diabetic and Non-Diabetic Pregnant Women Assessed by Gastric Ultrasonography
This study will test whether drinking 200 ml of water two hours before a scheduled cesarean changes stomach volume differently in pregnant women with diabetes compared to those without.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 70 (estimated) |
| Ages | 18 Years to 40 Years |
| Sex | Female |
| Sponsor | Ankara City Hospital Bilkent Academic / other |
| Locations | 1 site (Ankara, Ankara) |
| Trial ID | NCT07482098 on ClinicalTrials.gov |
What this trial studies
This is a single-center prospective observational study enrolling 70 pregnant women scheduled for elective cesarean delivery, divided into diabetic and non-diabetic groups. All participants will receive 200 ml of water two hours before surgery and undergo gastric ultrasonography before fluid intake and again two hours after intake. The gastric antrum will be visualized using anatomical landmarks and measured in semi-recumbent and right lateral positions to estimate gastric volume. Results will compare residual gastric volume between the diabetic and non-diabetic groups as a surrogate for aspiration risk.
Who should consider this trial
Good fit: Ideal candidates are pregnant women aged 18–40 with singleton pregnancies, ASA II, scheduled for elective cesarean under spinal anesthesia, who can give informed consent and either have or do not have diabetes in pregnancy.
Not a fit: Patients undergoing emergency cesarean, with multiple gestation, ASA III or higher, pre-existing neurological disease, contraindication to spinal anesthesia, or who do not meet the inclusion criteria are unlikely to benefit from this study.
Why it matters
Potential benefit: If successful, the results could clarify whether current clear-fluid fasting recommendations are safe for pregnant patients with diabetes and help guide anesthesia planning.
How similar studies have performed: Gastric ultrasound has been used in obstetric populations and several studies in non-diabetic patients suggest clear fluids two hours before anesthesia generally produce low residual volumes, but data specifically in diabetic pregnant women are limited.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Pregnant women aged 18-40 years * Scheduled for elective cesarean section under spinal anesthesia * Singleton pregnancy * ASA physical status II * Patients who provide written informed consent Exclusion Criteria: * Refusal to participate in the study * Contraindication to spinal anesthesia * Known allergy to study medications * Multiple pregnancy * Severe systemic disease (ASA III or higher) * Pre-existing neurological disease * Infection at the spinal puncture site
Where this trial is running
Ankara, Ankara
- Ankara Bilkent City Hospital — Ankara, Ankara, Turkey (Türkiye) (Recruiting)
Study contacts
- Study coordinator: İrem Dinçer, MD
- Email: iremdincer97@gmail.com
- Phone: +905333641512
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.