Investigating how carbon dioxide levels affect eye pressure in children
Official title: Effect of Raised End-Tidal pCo2 on Choroidal Volume
Run by University of Pittsburgh · NCT06275308 · Data updated 2026-11-12
This study is testing how different levels of carbon dioxide in the body affect eye pressure in young children during eye exams.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | Any age to 8 Years |
| Sex | All |
| Enrollment | 20 (estimated) |
| Sponsor | University of Pittsburgh Academic / other |
| Locations | 1 site (Pittsburgh, Pennsylvania) |
| Status | Recruiting |
| Started | February 27, 2023 |
| Main results expected | December 30, 2026 |
| Study ends | December 30, 2026 |
| Registry record updated | January 9, 2026 |
| Trial ID | NCT06275308 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are children aged newborn to 8 years undergoing an eye exam under anesthesia for ophthalmologic reasons.
✕Probably not a fit
Patients over the age of 8 or those with specific medical conditions affecting the eye or cerebral autoregulation will not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study examines the relationship between arterial carbon dioxide concentration and vitreous pressure on choroidal volume in children undergoing eye exams under anesthesia. Using integrated intraoperative OCT imaging, the thickness of the choroid will be measured while manipulating end-tidal CO2 levels. The goal is to understand how changes in CO2 levels may influence intraocular pressure and potentially lead to complications during eye procedures. Children aged newborn to 8 years with normal eyes will be included, and various measurements will be taken to ensure accuracy.
Why it matters
Potential benefit: If successful, this study could lead to improved safety and outcomes for pediatric eye surgeries by minimizing complications related to intraocular pressure.
How similar studies have gone: While the specific approach of manipulating CO2 levels in this context may be novel, related studies have explored the effects of gas concentrations on ocular conditions, indicating potential for success.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * any child undergoing an eye exam under anesthesia for an ophthalmologic reason. * children between the ages newborn to 8 years of age. Exclusion Criteria: * children who are not having an eye exam under anesthesia. * children with a known medical diagnosis that affect the eye to be studied * \* children over the age of 8 years of age. * \* children with altered cerebral autoregulation, increased intracranial pressure, pulmonary hypertension, or any other condition deemed appropriate by the anesthesiologist. * children in whom a laryngeal mask airway will not be used
Where it's running
-
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, United States Recruiting
Study contacts
- Principal investigator: Kanwal Nischal, MD,FRCOphth — University of Pittsburgh
- Study coordinator: Amy Monroe, MPH, MBA
- Email: monroeal@upmc.edu
- Phone: 412-623-6382
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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.