Bedside ultrasound monitoring of stomach emptying in mechanically ventilated ICU patients
Evaluation of Gastric Emptying and Residual Volume Using Ultrasound in Mechanically Ventilated Intensive Care Patients Receiving Different Enteral Nutrition Solutions
This project tries bedside ultrasound to see if it can measure stomach volume and emptying time in adults on mechanical ventilation who are receiving tube feeding.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 60 (estimated) |
| Ages | 18 Years and up |
| Sex | All |
| Sponsor | Sehit Prof. Dr. Ilhan Varank Sancaktepe Training and Research Hospital Academic / other |
| Locations | 1 site (Istanbul, Istanbul) |
| Trial ID | NCT07352202 on ClinicalTrials.gov |
What this trial studies
This prospective observational work uses standardized bedside gastric ultrasound to measure gastric volume and emptying dynamics in mechanically ventilated adult ICU patients. Ultrasound exams will be performed at predefined time points by trained clinicians to estimate gastric residual volume and calculate emptying times. Measurements will be compared across patients receiving different enteral nutrition formulations as part of routine care. The protocol also examines the practicality of using bedside ultrasound as a non-invasive monitoring tool in critically ill patients.
Who should consider this trial
Good fit: Adults (≥18 years) who are mechanically ventilated in the ICU with a nasogastric tube, hemodynamically stable, and receiving enteral nutrition are ideal candidates.
Not a fit: Patients who are hemodynamically unstable, have recent major abdominal surgery, significant ascites, major abdominal trauma or burns, or an inadequate ultrasound window are unlikely to benefit.
Why it matters
Potential benefit: If successful, bedside ultrasound could provide a simple non-invasive way to monitor gastric emptying and help tailor enteral feeding to reduce aspiration risk.
How similar studies have performed: Prior smaller studies in perioperative and critical care settings have shown gastric ultrasound can estimate gastric volume, but data specifically in mechanically ventilated patients and comparisons between feeding formulas remain limited.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18 years or older * Mechanically ventilated patients admitted to the intensive care unit * Presence of a nasogastric tube * Hemodynamically stable patients receiving enteral nutrition as part of routine clinical care Exclusion Criteria: * Recent abdominal surgery within the first 24 hours * Major abdominal trauma or burns * Significant ascites * Inadequate ultrasound window (e.g., severe meteorism) * Hemodynamic instability * Contraindication to enteral nutrition
Where this trial is running
Istanbul, Istanbul
- Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital — Istanbul, Istanbul, Turkey (Türkiye) (Recruiting)
Study contacts
- Principal investigator: Berfin Gizem G Özelsel, MD — Sehit Prof. Dr. Ilhan Varank Sancaktepe Training and Research Hospital
- Study coordinator: Berfin Gizem G Ozelsel, MD
- Email: berfingizemuslu@hotmail.com
- Phone: +905421104082
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.