How different oxygen targets and interfaces affect oxygen flow in patients needing supplemental oxygen

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Researchers will examine whether using different oxygen targets and oximeters changes the required oxygen flow in adults on conventional oxygen therapy. They will also explore whether certain interfaces, especially closed oxygen masks, affect carbon dioxide levels (PaCO2) due to potential rebreathing. The study will compare multiple familiar interfaces to see how flow rates vary across patient groups. Primary focus is on how interface choices impact oxygen use, with a secondary look at PaCO2. Participation is limited to adults receiving oxygen therapy with specific SpO2 criteria.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adult (\> or = 18 years old)
* Ongoing on conventional oxygen therapy with peripheral oxygen saturation (SpO2) between 88 and 100% with the usual oximeter
* SpO2 \< 92% ambient air with the usual oximeter

Exclusion Criteria:

* No SpO2 signal with with the usual oximeter
* False nails or nail polish
* Severe anemia documented on last blood count during current hospitalization (haemoglobin (Hb) \< 80g/L)
* Oxygen flow \> 6 L/min

Where it's running

• Insitut universitaire de cardiologie et de pneumologie de Quebec - Universite Laval
  Québec, Quebec, Canada Recruiting

Study contacts

• Study coordinator: François Lellouche
• Email: françoislellouche@criucpq.ulaval.ca
• Phone: 1-418-656-8711

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.