Benefit of the Oxygen Reserve Index for Control of Success of Preoxygenation in Adults

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04596215

Acronym

PRIORI

Enrollment

Registered

2020-10-22

Start date

2020-12-01

Completion date

2021-07-01

Last updated

2022-02-15

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

Conditions

Preoxygenation

Keywords

Anaesthesia, Preoxygenation, blood gas analysis, Oxygen Reserve Index, Decarboxylation

Brief summary

Valuation of the probability for a correct detection of paO2 \< 100 mmHg and paO2 \> 200 mmHg using the Oxygen Reserve Index

Detailed description

As mentioned above

Interventions

None listed

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Inclusion criteria

* Indication of an elective surgery with invasive arterial blood pressure measurement in awake patients * written informed consent

Exclusion criteria

* Emergency surgery * Patients with expected difficult airway and indication for an awake fiberoptic intubation and therefore no need of preoxygenation * no written informed consent

Design outcomes

Primary

Measure	Time frame	Description
Validation of the probability for a correct detection of paO2 < 100 mmHg and paO2 > 200 mmHg using the Oxygen Reserve Index	preoxygenation of 3 minutes	As mentioned above

Secondary

Measure	Time frame	Description
Patient characteristics	48 hours	age, sex, weight, pre-existing conditions
MAP	preoxygenation of 3 minutes	mean arterial pressure
NIRS (Near-infrared spectroscopy)	preoxygenation of 3 minutes	cerebral O2 saturation in %, rSO2C
PI	preoxygenation of 3 minutes	perfusion index

Countries

Germany

Outcome results