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Respiratory Mechanics Measurement of Ventilated Patients Through Low-frequency Oscillometry Technique

NCT06483529 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 21

Last updated 2024-07-03

No results posted yet for this study

Summary

Respiratory failure has historically been one of the most important causes for admittance of patients to the critical care unit. This problem was the most important reason during the COVID-19 pandemic. Following the evolution of the physiology of the lung has therefore been the number one concern during these challenging times in the intensive care unit (ICU). Respiratory oscillometry (RO) identifies the lung impedance by applying small pressure oscillations onto the breathing or ventilation. Information about the respiratory mechanics can be extracted out of this impedance, including the resistance (R) and compliance (C) of the lung. The VUB developed a robust, patient safe RO measurement protocol that delivers high quality measurements with the least possible interference with the patient's breathing/ventilation. The technique challenges current state-of-the-art techniques also aiming at identifying R and C of the respiratory system (not exclusively RO). The RO measurement protocol is in line with the technical standards of the ERS (European Respiratory Society) and has been successfully and safely tested on emulators and some parts on test subjects. The clinical investigation aims at a powered equivalence investigation between the RO measurement protocol and a standard of care dynamic compliance estimate on invasive ventilated patients. As secondary objectives, the feasibility of the RO techniques will be investigated during pressure support ventilation and the RO estimates will also be compared with other accepted respiratory mechanics estimation tools. To enable the investigation, a RO algorithm is developed, and a RO measurement extension is implemented in the DemcAir® ventilation system of Demcon. This was a fully tested ventilator that received a CE mark under the previous MDD regulation. However, Demcon, which produces ventilator parts for other commercial partners, removed the label to avoid competition with their partners. The ventilator will only execute the protocol on demand and save the data on an USB stick available in the ventilator. At any time, the RO measurement procedure can be stopped, and the ventilator will return to its initial ventilation. The USB stick is used to transport the data to a separate (VUB) laptop where the data processing is done.

Conditions

  • Ventilator Lung

Interventions

DIAGNOSTIC_TEST

compliance measurement

compliance can be measured by analyzing pressure volume curves generated through different methods

Sponsors & Collaborators

  • Universitair Ziekenhuis Brussel

    lead OTHER

Principal Investigators

  • joop jonckheer, MD, PhD · Universitair Ziekenhuis Brussel

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
QUADRUPLE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-09-18
Primary Completion
2024-09-30
Completion
2024-12-31

Countries

  • Belgium

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06483529 on ClinicalTrials.gov