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Porovnání několika cílů okysličování s různými rozhraními kyslíku – dopad na průtoky kyslíku (Interfaces)

3. listopadu 2026 aktualizováno: 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).

Přehled studie

Postavení

Nábor

Podmínky

Intervence / Léčba

Typ studie

Intervenční

Zápis (Odhadovaný)

Fáze

Nelze použít

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Jméno: François Lellouche
Telefonní číslo: 1-418-656-8711
E-mail: françoislellouche@criucpq.ulaval.ca

Studijní místa

Kanada
- Quebec
  - Québec, Quebec, Kanada, G1V4G5
    - Nábor
    - Insitut universitaire de cardiologie et de pneumologie de Quebec - Universite Laval
    - Kontakt:
      
      Francois Lellouche Principal Investigator
      
      Telefonní číslo: 418-656-8711
      
      E-mail: francois.lellouche@criucpq.ulaval.ca

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

18 let a starší (Dospělý, Starší dospělý)

Přijímá zdravé dobrovolníky

Pohlaví způsobilá ke studiu

Všechno

Popis

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

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

Primární účel: Podpůrná péče
Přidělení: Randomizované
Intervenční model: Crossover Assignment
Maskování: Žádné (otevřený štítek)

Počet zbraní

Zbraně a zásahy

Skupina účastníků / Arm	Intervence / Léčba
Jiný: Oxymetr Nellcor	Přístroj: 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. Přístroj: 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. Přístroj: 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. Přístroj: 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.
Jiný: Noninový oxymetr	Přístroj: 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.

Skupina účastníků / Arm

Intervence / Léčba

Jiný: Oxymetr Nellcor

Přístroj: 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).