NCT04038398

Brief Summary

The proper management of brain oxygenation is an essential component of all anesthesiologic procedures. Nevertheless, the brain remains one of the least monitored organs in the perioperative phase and intensive care therapy. In the current study the effects of continuous positive airway pressure (CPAP) with different ventilation parameters (FiO2 21% - 50% - 100%) on cerebral and peripheral oxygenation (rSO2) will be examined. The INVOS Brain oximeter (IBO) is a reliable trend monitor for changes in regional cerebral oxygenation (rSO2). Therefore rSO2 will be measured on the forehead and the arm. In a randomised way the rSO2 will be monitored for 30 minutes (3x10min) with different FiO2 settings. The randomisation refers to the order of the applied FiO2, each patient is therefore its own control. Additionally vital parameters (heart rate, blood pressure, SpO2) will be recorded and blood gas analysis will be performed.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
25

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2019

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 24, 2019

Completed
6 days until next milestone

First Posted

Study publicly available on registry

July 30, 2019

Completed
1 month until next milestone

Study Start

First participant enrolled

September 1, 2019

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2020

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2020

Completed
Last Updated

July 30, 2019

Status Verified

July 1, 2019

Enrollment Period

1 year

First QC Date

July 24, 2019

Last Update Submit

July 26, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • rSO2 (cerebral)

    The primary endpoint of this study is the change of cerebral rSO2 (%) under CPAP therapy.

    30 minutes

Secondary Outcomes (7)

  • rSO2 (peripheral)

    30 minutes

  • Association of rSO2 with blood gas analysis (pO2)

    30 minutes

  • Association of rSO2 with blood gas analysis (pCO2)

    30 minutes

  • Association of rSO2 with blood gas analysis SO2

    30 minutes

  • Association of rSO2 with peripheral oxygen saturation SpO2

    30 minutes

  • +2 more secondary outcomes

Study Arms (2)

FiO2 : 100% - 50% - 21%

OTHER

see above

Procedure: Non-invasive ventilation with different FiO2 settings

FiO2: 21% - 50% - 100%

OTHER

see above

Procedure: Non-invasive ventilation with different FiO2 settings

Interventions

CPAP therapy applied with different order of FiO2 settings.

FiO2 : 100% - 50% - 21%FiO2: 21% - 50% - 100%

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • patients aged from 18 years onwards
  • treatment on ICUs (13C1, 13C2, 13C3, 13B1, 13I1, 9D, E11 (neurosurgical ICU )) of the Medical University Vienna
  • CPAP therapy in the patient's routine clinical treatment
  • patients willing to participate

You may not qualify if:

  • delirium
  • patients not willing to participate
  • present severe neurological disorders
  • present severe cardiac valvular disease
  • known allergies to the medical-grade adhesive

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Doerr C, Kietaibl C, Doerr K, Hagmann M, Baumann L, Kimberger O, Ullrich R, Markstaller K, Klein KU. Impact of CPAP on Forehead Near-infrared Spectroscopy Measurements in Patients With Acute Respiratory Failure: Truth or Illusion. J Neurosurg Anesthesiol. 2019 Oct;31(4):406-412. doi: 10.1097/ANA.0000000000000529.

MeSH Terms

Interventions

Noninvasive Ventilation

Intervention Hierarchy (Ancestors)

Respiration, ArtificialAirway ManagementTherapeuticsRespiratory Therapy

Study Officials

  • Klaus Markstaller, MD, PHD

    Medical University Vienna

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

July 24, 2019

First Posted

July 30, 2019

Study Start

September 1, 2019

Primary Completion

September 1, 2020

Study Completion

December 1, 2020

Last Updated

July 30, 2019

Record last verified: 2019-07

Data Sharing

IPD Sharing
Will not share