Gastric Volume Changes in Kids During Ventilation With Different Airway Devices
Official title: Comparison of Gastric Volume Changes Via Ultrasound After Ventilation With Endotracheal Tube, First-Generation Supraglottic Airway, and Second-Generation Supraglottic Airway in Pediatric Patients: A Prospective Observational Study
Run by Istanbul University · NCT07555080 · Data updated 2026-11-12
This study tests whether gastric volume in children changes depending on whether they are ventilated with an endotracheal tube or with one of two supraglottic airway devices.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 1 Year to 10 Years |
| Sex | All |
| Enrollment | 250 (estimated) |
| Sponsor | Istanbul University Academic / other |
| Locations | 1 site (Istanbul) |
| Status | Recruiting |
| Started | June 15, 2026 |
| Main results expected | August 20, 2026 |
| Study ends | September 2026 |
| Registry record updated | September 17, 2026 |
| Trial ID | NCT07555080 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Children aged 1–10 years undergoing elective surgery with planned positive-pressure ventilation under general anesthesia.
✕Probably not a fit
Children with certain conditions or surgeries excluded (e.g., gastrointestinal surgery, laparoscopic procedures, full stomachs) may not experience a measured benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study compares gastric volumes in pediatric patients receiving positive-pressure ventilation with three airway management strategies: endotracheal intubation, first-generation supraglottic airway, and second-generation supraglottic airway. Gastric ultrasonography is used at anesthesia induction to estimate gastric content and volume, with a goal of keeping volume below 1.25 mL/kg to reduce aspiration risk. Data are collected during routine preoperative care, including measurement of antral area and calculated gastric volume using a validated pediatric formula. The airway approach is determined by standard clinical practice, and any gastric leakage during ventilation is recorded. Eligible participants are children aged 1–10 years undergoing elective surgery under general anesthesia, with ASA I–III status.
Why it matters
Potential benefit: If successful, the study could clarify whether certain airway devices are associated with smaller gastric volumes, potentially guiding safer airway choices to reduce aspiration risk in children.
How similar studies have gone: Prior research suggests gastric ultrasound can reliably estimate content and volume, but direct comparisons among endotracheal and supraglottic devices in children are limited, making this study relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * 1-10 years of age * Adherence to standard preoperative fasting guidelines * Elective surgeries * ASA I-III status * Surgery time 30 min to 2 hours Exclusion Criteria: * Gastrointestinal tract surgeries * Laparoscopic surgeries * Emergency procedures * Full stomach patients * Lack of parental/guardian consent
Where it's running
-
Istanbul University
Istanbul, Turkey (Türkiye) Recruiting
Study contacts
- Principal investigator: Meltem Savran Karadeniz — Istanbul University Faculty of Medicine
- Study coordinator: Meltem Savran Karadeniz, Professor
- Email: mskaradeniz@gmail.com
- Phone: +9005334845563
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.