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Non-invasive Early Oxygen- Reserve-index (ORI) Determination to Prevent Hypoxaemia During Endotracheal Intubation

Impact of the Non-invasive Oxygen-reserve-index (ORI) Versus Standard of Care on Peripheral Oxygen Saturation (SpO2) During Endotracheal Intubation (ETI) in Intensive Care Unit: Randomised Superiority Multi-center 2 Arms, Open Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05867875
Acronym
NESOI-2
Enrollment
950
Registered
2023-05-22
Start date
2023-08-01
Completion date
2025-06-23
Last updated
2025-08-05

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

Conditions

Intensive Care Unit

Keywords

ORI, intensive care unit, ETI, Masimo Rad7

Brief summary

The purpose of this study is to determine whether ORI monitoring increases the lowest oxygen saturation level during the interval between the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) and the end of the second minute after successful ETI.

Detailed description

The trial population will be adults (18 years of age or older) who need endotracheal intubation while hospitalized in ICU

Interventions

OTHERUnblinded ORI values

ORI and SpO2 monitoring will be performed using Masimo Rad 7 and both values will be provided to investigator

OTHERBlinded ORI values

ORI and SpO2 monitoring will be performed using Masimo Rad 7 and only SpO2 values will be provided to investigator

Sponsors

Nantes University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Investigator)

Masking description

During intubation procedure, blinded continuous monitoring of SpO2 and ORI (for control group) will be performed by appropriate monitor (Masimo Rad7) with data extraction at regular intervals. Oxygen saturation will be tracked during ETI by research nurse or assistant nurse dedicated to fill the eCRF. ORI evolution will not be provided to investigators in the standard of care group.

Intervention model description

Consecutive Intensive Care Unit (ICU) patients requiring ETI will be randomly allocated to ETI with or without ORI monitoring before beginning of preoxygenation, with stratification by centre, expert or nonexpert intubator status (experts: ≥5 years' ICU experience, or ≥1 year ICU experience plus ≥2 years' anaesthesiology training), and Non-Invasive Ventilation (NIV) or others devices for preoxygenation. Randomisation will be via an electronic case-report form, using a balanced scheme with stratification as described above.

Eligibility

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

Inclusion criteria

* ICU admission and need for ETI to allow mechanical ventilation * Need for supplemental oxygen (via any device and at any flow rate) to obtain SpO2\>97% * Patient or next of kin informed about the study and having consented to participation of the patient in the study (patients with coma are unable to consent). If patient is no competent and no next of kin can be contacted during screening for the study, trial inclusion will be completed as an emergency procedure by the ICU physician, in compliance with French law * Patients affiliated to a social security system

Exclusion criteria

* Patients participating in intubation research with an oxygenation endpoint will not be eligible for inclusion * Fiberoptic intubation required according to physician in charge * Contra-indications to laryngoscopy (e.g., unstable spinal lesion) * Insufficient time to include and randomise the patient (e.g., because of cardiac arrest) * Age \<18 years * Currently pregnant or breastfeeding * Correctional facility inmate * Under guardianship, curatorship or under protection of justice

Design outcomes

Primary

MeasureTime frameDescription
Determine whether ORI monitoring increases the lowest oxygen saturation level during ETIFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until the end of the second minute after successful ETILowest oxygen saturation is monitored by Masimo Rad7 oximeter during ETI in Experimental and Control groups

Secondary

MeasureTime frameDescription
Determine whether ORI monitoring increases the lowest oxygen saturation level according to local oximeter.From the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until the end of the second minute after successful ETILowest oxygen saturation monitored by local oximeter during ETI in Experimental and Control groups are compared to values monitored by Masimo Rad7 in same conditions
Determine whether ORI monitoring increases the lowest oxygen saturation level during ETI in Body Mass Index (<30 or ≥30) subgroupFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until the end of the second minute after successful ETILowest oxygen saturation is monitored by Masimo Rad7 oximeter during ETI in Body Mass Index subgroup

Other

MeasureTime frameDescription
Determine whether ORI monitoring increases the lowest oxygen saturation level during ETI in ORI threshold (<0.6 or ≥0.6) subgroupFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until the end of the second minute after successful ETILowest oxygen saturation is monitored by Masimo Rad7 oximeter during ETI in ORI threshold (\<0.6 or ≥0.6) subgroup
Assess safety of ORI monitoringFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until the end of the second minute after successful ETIOccurrence of at least one severe life-threatening complication (death, cardiac arrest, arterial systolic pressure \<90 mmHg, and/or SpO2\<80%) and occurrence of each are assessed in Experimental and Control group
Assess efficacy of ORI monitoring on ICU mortalityFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until discharge from intensive care unit or up to 28 daysICU mortality is assessed in Experimental and Control groups
Determine whether ORI monitoring increases the lowest oxygen saturation level during ETI in Reason for ETI (hypoxaemia/other) subgroupFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until the end of the second minute after successful ETILowest oxygen saturation is monitored by Masimo Rad7 oximeter during ETI in Reason for ETI (hypoxaemia/other) subgroup
Assess efficacy of ORI monitoring on ICU stay lengthFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until discharge from intensive care unit or up to 28 daysICU stay length is assessed in Experimental and Control groups
Assess efficacy of ORI monitoring on hospital stay lengthFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until discharge from hospital or up to 28 daysHospital stay length is assessed in Experimental and Control groups
Assess efficacy of ORI monitoring on Mean Cognitive Core at day 28 (modified Telephone Interview for Cognitive Status)Day 28Mean Cognitive Score at day 28 using modified Telephone Interview for Cognitive Status is assessed in Experimental and Control groups Values range from 0 to 43, with higher scores indicating better cognition
Assess efficacy of ORI monitoring on 28-day mortalityFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until day 2828-day mortality is assessed in Experimental and Control groups
Determine whether ORI monitoring increases the lowest oxygen saturation level during ETI in Shock/No shock (at inclusion) subgroupFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until the end of the second minute after successful ETILowest oxygen saturation is monitored by Masimo Rad7 oximeter during ETI in Shock/No shock (at inclusion) subgroup
Determine whether ORI monitoring increases the lowest oxygen saturation level during ETI in Difficult Intubation (yes or no) subgroupFrom the first laryngoscopy (defined as introduction of the laryngoscope into the mouth) until the end of the second minute after successful ETILowest oxygen saturation is monitored by Masimo Rad7 oximeter during ETI in Difficult Intubation (yes or no) subgroup

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026