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Related Experiment Video

Updated: Jul 19, 2026

Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome (ARDS)

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[Benchmark of a high-frequency jet ventilator, the Mistral].

G Gueret¹, B Rossignol, G Ferrec

¹Département d'anesthésie-réanimation chirurgicale, centre hospitalier universitaire la Cavale-Blanche, rue Tanguy-Prigent, 29609 Brest, France.

Annales Francaises D'Anesthesie Et De Reanimation

|September 29, 2006

Summary

Using a low volume connector with the Mistral high-frequency jet ventilator is recommended. This improves end-expiratory pressure measurement accuracy across various settings and catheters, unlike the Seldicath catheter.

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Last Updated: Jul 19, 2026

Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome (ARDS)

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Published on: April 7, 2021

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Published on: July 9, 2020

Area of Science:

Medical Devices
Respiratory Care
Mechanical Ventilation

Background:

High-frequency jet ventilation (HFJV) is a specialized mode of mechanical ventilation.
Accurate monitoring of ventilation parameters is crucial for patient safety and effective therapy.
The Mistral ventilator (Acutronic Laboratory) is a specific device within HFJV technology.

Purpose of the Study:

To evaluate the performance of the Mistral high-frequency jet ventilator.
To assess the impact of different connectors and catheters on ventilation parameters.
To determine optimal settings for accurate end-expiratory pressure measurement.

Main Methods:

Testing the Mistral HFJV with 7 ml and 20 ml connectors and four catheters.
Varying driving pressure (1-3 bars), I/T ratio (0.25-0.45), and frequency (1-5 Hz).
Measuring delivered volume, connecting line pressure, and end-expiratory pressure gradient.

Main Results:

Increased driving pressure proportionally increased minute volume.
The Seldicath catheter showed the slowest pressure decrease and longest time constant.
Higher frequency or I/T ratio (>0.35) increased measured end-expiratory pressure.
A 7 ml connector yielded a lower pressure gradient compared to the 20 ml connector.

Conclusions:

Low volume connectors are preferred for accurate end-expiratory pressure measurement with HFJV.
The Seldicath catheter demonstrated suboptimal performance compared to other tested catheters.
Optimizing connector choice enhances HFJV monitoring across diverse settings.