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Is Routine Postoperative Oxygen Therapy Still Necessary in 2020?

Is Routine Postoperative Oxygen Therapy Still Necessary in 2020?

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05009628
Acronym
FreeO2
Enrollment
80
Registered
2021-08-17
Start date
2021-07-05
Completion date
2021-11-27
Last updated
2022-01-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Postoperative Oxygen Therapy

Brief summary

The purpose of this study by automated control of oxygen supply in the immediate postoperative period is to show the possibility of immediate weaning in the postoperative period in case of remifentanil use and complete reversion of curarization.

Detailed description

The main hypothesis of this study is that classical oxygen therapy at 3l/min is futile in the postoperative period of a so-called modern anaesthesia and that a total weaning within one hour after arrival in the ICU is possible whatever the postoperative position of the patient. The aim is therefore to include patients who have to undergo a scheduled surgery under anaesthetic sedation (analgesia with remifentanil) or general anaesthesia (combining remifentanil, propofol rocuronium) for ambulatory surgery. The trial is interventional, randomized, monocentric to demonstrate the absence of interest of prolonged postoperative oxygen therapy under specific intraoperative conditions.

Interventions

PROCEDUREautomated oxygenation with a sitting patient position in the ICU

Oxygenation will be done with the Free O2 device via oxygen goggles or a face mask and with an O2 prescription to obtain a SpO2\> 94%. The patient's position in the ICU will be a sitting position with the chest raised at an angle greater than 45°.

PROCEDUREAutomated oxygenation with the patient lying down in the ICU

Oxygenation will be done with the Free O2 device via oxygen goggles or a face mask and with an O2 prescription to obtain a SpO2\> 94%. The patient's position in the ICU will be a recumbent position with the head elevated to a maximum of 10

PROCEDUREOxygenation is controlled with the patient in a sitting position in the ICU.

ICU. Oxygenation will be done via the same interface in manual mode where the post-interventional monitoring room nurse modifies the flow to maintain oxygen saturation above 94%. The patient's position in the ICU will be a sitting position with the chest raised at an angle greater than 45°.

Sponsors

Hopital Foch
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Intervention model description

interventional study with 4 paralel arms ; randomization is realised according to a centralized and balanced 2x2 factorial design

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Patients managed by the Anesthesia Department of the Foch Hospital; * Anesthetic sedation (analgesia with remifentanil) or general anesthesia (combining remifentanil, propofol and possibly rocuronium); * Men or women over 18 and under 80 years of age; * To benefit from a surgical intervention scheduled \> 48 hours in relation to the procedure; * Scheduled outpatient surgery; * Have signed a consent form; * Be affiliated to a health insurance plan.

Exclusion criteria

* Pregnant or nursing patients; * Oxygen dependent preoperatively or at risk of oxygen dependence postoperatively; * Lung resection surgery; * Brain surgery (intracerebral neurosurgery); ENT surgery requiring a half-seated position after the operation; * Being deprived of liberty or under guardianship.

Design outcomes

Primary

MeasureTime frameDescription
Oxygen withdrawal time1 dayTime (min) to achieve zero O2 flow for at least 15 consecutive minutes

Secondary

MeasureTime frameDescription
Amount of O2 needed to reach the target saturation value (SpO2)1 dayNumber of liters of O2 needed postoperatively
Signature time in the ICU1 dayMinutes since admission
Maximum flow rate during the evaluation period1 dayMaximum value of O2 flow in liter/min
The patient's comfort1 dayNumerical scale between 0 and 10 to evaluate patient comfort
Rate of patients weaned within the first hour1 dayZero O2 flow for at least 15 consecutive minutes
Complications during stay in intensive care unit30 daysLength of stay in intensive care unit
Mortality during stay in hospital30 daysHospital mortality
Complications after stay in hospital30 daysRehospitalization
Complications during hospital stay30 daysLength of hospital stay

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026