Comparison of Several Oxygenation Targets With Different Oxygen Interfaces - Impact on Oxygen Flow Rates

NCT ID: NCT06646991

Last Updated: 2024-11-22

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Clinical Phase: NA
• Total Enrollment: 20 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-12-31
• Study Completion Date: 2025-12-31

Brief Summary

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).

Conditions

Oxygen Toxicity; COPD Bronchitis; Respiratory Failure

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: SUPPORTIVE_CARE
• Blinding Strategy: NONE

Study Groups

Nellcor oximeter

Group Type: OTHER

Nasal canula - up to 6 liters per minute

Intervention Type: DEVICE

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.

Nasal canula - up to 15 liters per minute

Intervention Type: DEVICE

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.

Open oxygen mask

Intervention Type: DEVICE

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.

Simple oxygen face mask

Intervention Type: DEVICE

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.

Nonin Oximeter

Group Type: OTHER

Nasal canula - up to 6 liters per minute

Intervention Type: DEVICE

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.

Interventions

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.

Intervention Type: DEVICE

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.

Intervention Type: DEVICE

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.

Intervention Type: DEVICE

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.

Intervention Type: DEVICE

Eligibility Criteria

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

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Laval University

OTHER

Sponsor Role: lead

Responsible Party

François Lellouche

Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Institut Universitaire de Cardiologie et de Pneumologie de Québec

Québec, , Canada

Countries

Canada

Central Contacts

François Lellouche

Role: CONTACT

françoislellouche@criucpq.ulaval.ca

1-418-656-8711

Other Identifiers

2025-4198

Identifier Type: -

Identifier Source: org_study_id