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Sammenligning av flere oksygeneringsmål med forskjellige oksygengrensesnitt - innvirkning på oksygenstrømningshastigheter (Interfaces)

3. november 2026 oppdatert av: François Lellouche, Laval University

Oxygen therapy is at the heart of the healthcare system. Oxygen flow rates depend on a number of confounding factors confounding factors (target used, skin pigmentation, pulse oximeter used, etc.) The investigators have recently have recently demonstrated that the combination of these factors (different peripheral oxygen saturation (SpO2) targets and different oximeters) can have a significant impact on oxygen flows rates. The effect on oxygen flow was not simply additive .

The aim of this study is to evaluate the impact of the interface used on oxygen flow rates in different patient populations (main objective). The investigatoers also evaluate the impact of the interface on carbon dioxide (PaCO2), in particular with closed oxygen masks, with which rebreathing is theoretically possible (secondary objective).

secondary objective).

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

Fase

Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Navn: François Lellouche
Telefonnummer: 1-418-656-8711
E-post: françoislellouche@criucpq.ulaval.ca

Studiesteder

Canada
- Quebec
  - Québec, Quebec, Canada, G1V4G5
    - Rekruttering
    - Insitut universitaire de cardiologie et de pneumologie de Quebec - Universite Laval
    - Ta kontakt med:
      
      Francois Lellouche Principal Investigator
      
      Telefonnummer: 418-656-8711
      
      E-post: francois.lellouche@criucpq.ulaval.ca

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

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

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Primært formål: Støttende omsorg
Tildeling: Randomisert
Intervensjonsmodell: Crossover-oppdrag
Masking: Ingen (Open Label)

Antall våpen

Våpen og intervensjoner

Deltakergruppe / Arm	Intervensjon / Behandling
Annen: Nellcor oksymeter	Enhet: Nasal canula - up to 6 liters per minute Oxygen will be administered via nasal cannula up to 6 liters per minute during this period. Oxygen flow rates will be adjusted manually, with a gradual increase in flow rates to achieve a oxygen flow rates for reach the peripheral oxygen saturation (SpO2) target (92% for non chronic obstructive pulmonary disease (non COPD) patient and 90% for chronic obstructive pulmonary disease (COPD) patient). The steady state will be defined by a fixed oxygen flow rate and a stable SpO2 around the target ±2% for 15 minutes. The average oxygen flow rate during the last five minutes will be used. Enhet: Nasal canula - up to 15 liters per minute Oxygen will be administered via nasal cannula up to 15 liters per minute during this period. Oxygen flow rates will be adjusted manually, with a gradual increase in flow rates to achieve a oxygen flow rates for reach the SpO2 target (92% for non COPD patient and 90% for COPD patient). The steady state will be defined by a fixed oxygen flow rate and a stable SpO2 around the target ±2% for 15 minutes. The average oxygen flow rate during the last five minutes will be used. Enhet: Open oxygen mask Oxygen will be administered via an open during this period. Oxygen flow rates will be adjusted manually, with a gradual increase in flow rates to achieve a oxygen flow rates for reach the SpO2 target (92% for non COPD patient and 90% for COPD patient). The steady state will be defined by a fixed oxygen flow rate and a stable SpO2 around the target ±2% for 15 minutes. The average oxygen flow rate during the last five minutes will be used. Enhet: Simple oxygen face mask Oxygen will be administered via simple oxygen face mask during this period. Oxygen flow rates will be adjusted manually, with a gradual increase in flow rates to achieve a oxygen flow rates for reach the SpO2 target (92% for non COPD patient and 90% for COPD patient). The steady state will be defined by a fixed oxygen flow rate and a stable SpO2 around the target ±2% for 15 minutes. The average oxygen flow rate during the last five minutes will be used.
Annen: Nonin oksymeter	Enhet: Nasal canula - up to 6 liters per minute Oxygen will be administered via nasal cannula up to 6 liters per minute during this period. Oxygen flow rates will be adjusted manually, with a gradual increase in flow rates to achieve a oxygen flow rates for reach the peripheral oxygen saturation (SpO2) target (92% for non chronic obstructive pulmonary disease (non COPD) patient and 90% for chronic obstructive pulmonary disease (COPD) patient). The steady state will be defined by a fixed oxygen flow rate and a stable SpO2 around the target ±2% for 15 minutes. The average oxygen flow rate during the last five minutes will be used.

Deltakergruppe / Arm

Intervensjon / Behandling

Annen: Nellcor oksymeter

Enhet: Nasal canula - up to 6 liters per minute

Oxygen will be administered via nasal cannula up to 6 liters per minute during this period.

Oxygen flow rates will be adjusted manually, with a gradual increase in flow rates to achieve a oxygen flow rates for reach the peripheral oxygen saturation (SpO2) target (92% for non chronic obstructive pulmonary disease (non COPD) patient and 90% for chronic obstructive pulmonary disease (COPD) patient).