Evaluation of Tracheal Pressure During CPAP

NCT ID: NCT05679635

Last Updated: 2024-05-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-11-24

Study Completion Date

2024-05-14

Brief Summary

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This trial evaluates tracheal pressure values in intubated intensive care unit patients during continuous positive airway pressure without any ventilatory support, automatic tube compensation and assisted spontaneous breathing.

Detailed Description

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Aim of this trial is to investigate if there are any significant differences between airway and tracheal pressure values during continuous positive airway pressure (CPAP) ventilation. For this purpose, a tracheal pressure measurement catheter is inserted into the tracheal tube and the obtained values are compared with the corresponding airway pressure measured on the ventilator. To further evaluate the impact of mild respiratory support automatic tube compensation and assisted spontaneous breathing with 4 cmH2O will be applied and measured pressure values compared as well.

We hypothesize that tracheal pressure will be significantly lower than airway pressure values during inspiration, which represents the primary outcome measure. Secondary outcome parameters include comparison of expiratory and mean pressure values of airway and tracheal pressure. Additionally, effects of mild respiratory support will be evaluated as well.

Measurement of inspiratory tracheal pressure might allow to calculate the pressure drop between the airway pressure at the Y-piece of the ventilator and the pressure at the trachea. Currently it is not known, if this pressure drop is significant during CPAP, which represents the rationale to perform this pilot study. In a second step it would be possible to determine if the recorded pressure drop can be used as a surrogate parameter for the respiratory drive in terms of a risk assessment for the development of patient self-inflected lung injury.

Conditions

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Continuous Positive Airway Pressure CPAP Ventilation

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

prospective, open, clinical trial
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Study participants

In intubated patients during CPAP ventilation, a conventional tube adapter (CTA, Ventinova Medical B.V., Eindhoven, The Netherlands) will be connected to the tracheal tube for tracheal pressure measurement. Tracheal pressure measurements will be recorded directly from the respirator Evone (Ventinova Medical B.V., Eindhoven, The Netherlands) three times, as well as the corresponding airway pressure values from the Evita Infinity V500 respirator (Dräger Medical, Lübeck, Germany).

Study related time points:

T1: 10 minutes after insertion of the conventional tube adapter during CPAP without ventilator support T2: 10 minutes after T1 during CPAP with activated automatic tube compensation (ATC) T3: 10 minutes after T2 during CPAP with assisted spontaneous breathing (ASB) of 4 cmH2O

Group Type OTHER

Evone

Intervention Type DEVICE

The conventional tube adapter (CTA) from the Evone ventilator (Ventinova Medical B.V., Eindhoven, The Netherlands), equipped with an tracheal pressure measurement catheter will be connected to the tracheal tube of intubated intensive care unit patients. Subsequently tracheal pressure values will be displayed and recorded from the ventilator.

Evita Infinity V500

Intervention Type DEVICE

Displayed airway pressure values will be directly recorded from the Evita Infinity V500 ventilator (Dräger Medical, Lübeck, Germany)

Interventions

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Evone

The conventional tube adapter (CTA) from the Evone ventilator (Ventinova Medical B.V., Eindhoven, The Netherlands), equipped with an tracheal pressure measurement catheter will be connected to the tracheal tube of intubated intensive care unit patients. Subsequently tracheal pressure values will be displayed and recorded from the ventilator.

Intervention Type DEVICE

Evita Infinity V500

Displayed airway pressure values will be directly recorded from the Evita Infinity V500 ventilator (Dräger Medical, Lübeck, Germany)

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Male and female subjects ≥ 18 years
* Intubated patient during CPAP without pressure support
* Informed consent

Exclusion Criteria

* Female subjects known to be pregnant
* Known participation in another clinical trial
* Critical pulmonary state (paO2/FiO2 ratio \<100)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medical University Innsbruck

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Christopher Rugg, MD

Role: PRINCIPAL_INVESTIGATOR

Medical University of Innsbruck, Department of Anesthesiology and Intensive Care Medicine

Locations

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Medical University of Innsbruck

Innsbruck, Tyrol, Austria

Site Status

Countries

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Austria

Other Identifiers

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1224/2022

Identifier Type: -

Identifier Source: org_study_id

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