Comparison of the PaO2/FiO2 Ratio to Other Oxygenation Indexes for the Classification of Severity of Acute Respiratory Distress Syndrome

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03946189

Enrollment

150

Registered

2019-05-10

Start date

2018-03-14

Completion date

2019-05-01

Last updated

2019-05-10

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

Conditions

Acute Respiratory Distress Syndrome

Brief summary

In mechanically ventilated patients the PaO2/FiO2 ratio might not be the best reflection of the severity of ARDS. It does not incorporate variables and settings used during mechanical ventilatory support such as the positive end expiratory pressure (PEEP), inspiratory time to expiratory time ratio (Ti:Te), and the peak alveolar pressure (Palv). The aim is to identify a new oxygenation index for stratification of severity of ARDS

Interventions

DIAGNOSTIC_TESTObtaining arterial blood gases

Obtaining arterial blood sample

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 65 Years

Inclusion criteria

* Patients receiving mechanical ventilation in the Intensive Care Unit. * Patients in whom the managing medical team requested an arterial blood gas (ABG) analysis.

Exclusion criteria

* Patients in whom arterial blood gas could not be obtained or not ordered.

Design outcomes

Primary

Measure	Time frame	Description
New oxygenation index	Immediate	Oxygenation index that incorporates ventilator parameters

Countries

Lebanon

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026