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Research ArticleOriginal Research

Noninvasive Ventilation Automated Technologies: A Bench Evaluation of Device Responses to Sleep-Related Respiratory Events

Mathieu Delorme, Karl Leroux, Antoine Leotard, Ghilas Boussaid, Helene Prigent, Bruno Louis and Frederic Lofaso
Respiratory Care January 2023, 68 (1) 18-30; DOI: https://doi.org/10.4187/respcare.09807
Mathieu Delorme
Université Paris-Saclay, UVSQ, ERPHAN, Versailles, France.
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  • For correspondence: [email protected]
Karl Leroux
ASV Santé, Gennevilliers, France.
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Antoine Leotard
Service de physiologie - explorations fonctionnelles, Unité des pathologies du sommeil, AP-HP, Hôpital Raymond Poincaré, Garches, France; and Université Paris-Saclay, UVSQ, INSERM U1179, Equipe 3, Versailles, France.
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Ghilas Boussaid
Université Paris-Saclay, UVSQ, ERPHAN, Versailles, France.
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Helene Prigent
Service de physiologie - explorations fonctionnelles, Unité des pathologies du sommeil, AP-HP, Hôpital Raymond Poincaré, Garches, France; and Université Paris-Saclay, UVSQ, INSERM U1179, Equipe 3, Versailles, France.
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Bruno Louis
INSERM, U955, Université Paris Est Créteil, Faculté de Médecine, CNRS ERL 7000, Créteil, France.
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Frederic Lofaso
Université Paris-Saclay, UVSQ, ERPHAN, Versailles, France; and Service de physiologie - explorations fonctionnelles, Unité des pathologies du sommeil, AP-HP, Hôpital Raymond Poincaré, Garches, France.
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Abstract

BACKGROUND: Noninvasive ventilation (NIV) is the reference standard treatment for most situations of chronic respiratory failure. NIV settings must be titrated to both preserve upper-airway patency and control hypoventilation. Automatic adjustment of pressure support (PS) and expiratory positive airway pressure (EPAP) may facilitate the initiation and follow-up of domiciliary NIV. However, whether the automatic-adjustment algorithms embedded into current devices accurately detect, respond to, and score common sleep-related respiratory events remains unclear.

METHODS: A bench was set up to simulate central hypopnea (CH), central apnea (CA), obstructive hypopnea (OH), and obstructive apnea (OA). Four home ventilators were evaluated, with their dedicated modes for automatic PS and EPAP adjustment.

RESULTS: All 4 devices increased PS during CH, CA, and OH. However, PS adjustment varied widely in magnitude, with tidal volumes within 100 ± 20% of the target being provided by only 3 devices for CH, one for CA, and one for OH. Two devices increased EPAP for OH and 3 for OA, including one that also increased EPAP for CA. Only 2 devices scored residual hypopnea after simulated CA, and only one scored a residual event after OH. One device scored no event.

CONCLUSIONS: Current NIV devices differed markedly in their responses to, and reporting of, standardized sleep-related respiratory events. Further improvements in embedded NIV algorithms are needed to allow more widespread out-of-laboratory initiation and follow-up of NIV.

  • automated algorithms
  • bench study
  • chronic respiratory failure
  • noninvasive ventilation
  • sleep-related respiratory events

Footnotes

  • Correspondence: Mathieu Delorme PT MSc, Equipe de Recherche sur le Handicap Neuromoteur (ERPHAN), Pavillon Colbert, Porte 102, Hôpital Raymond Poincaré, 104 Boulevard Raymond Poincaré, 92380 Garches, France. E-mail: mathieu.delorme.pt{at}gmail.com
  • Mr Delorme discloses relationships with Air Liquide Medical Systems, Breas Medical, ResMed, and L3 Medical. Dr Leotard discloses relationships Air Liquide Medical Systems. The remaining authors have disclosed no conflicts of interest.

  • The devices studied were supplied by ASV Santé, a home care provider involved in the conducting of the current study.

  • Drs Lofaso and Louis are co-senior authors.

  • Supplementary material related to this paper is available at http://www.rcjournal.com.

  • Copyright © 2023 by Daedalus Enterprises
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Respiratory Care: 68 (1)
Respiratory Care
Vol. 68, Issue 1
1 Jan 2023
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Noninvasive Ventilation Automated Technologies: A Bench Evaluation of Device Responses to Sleep-Related Respiratory Events
Mathieu Delorme, Karl Leroux, Antoine Leotard, Ghilas Boussaid, Helene Prigent, Bruno Louis, Frederic Lofaso
Respiratory Care Jan 2023, 68 (1) 18-30; DOI: 10.4187/respcare.09807

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Noninvasive Ventilation Automated Technologies: A Bench Evaluation of Device Responses to Sleep-Related Respiratory Events
Mathieu Delorme, Karl Leroux, Antoine Leotard, Ghilas Boussaid, Helene Prigent, Bruno Louis, Frederic Lofaso
Respiratory Care Jan 2023, 68 (1) 18-30; DOI: 10.4187/respcare.09807
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Keywords

  • automated algorithms
  • bench study
  • chronic respiratory failure
  • noninvasive ventilation
  • sleep-related respiratory events

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