NIV bench study: performance of nine ventilators

J. Yarascavitch (Pittsburgh, United States), F. Belda (Valencia, Spain), D. Carlos (Valencia, Spain), P. Jaume (Valencia, Spain), M. Sara (Valencia, Spain), S. Marina (Valencia, Spain)

Source: Respiratory Failure and Mechanical Ventilation Conference 2022 - Opening session: Essentials of respiratory physiology - Assessment of respiratory muscle function - Pulmonary infections in mechanically ventilated patients - Telemonitoring of patients with chronic respiratory failure - Diagnostics and interventions - Acute respiratory failure: COVID-19 - Interstitial lung disease and pulmonary hypertension - Early rehabilitation - Acute respiratory failure: Invasive mechanical ventilation - HFNO and NIV for acute hypoxemic failure - Longterm NIV miscellaneous - Controversies in acute respiratory failure - The role of respiratory muscle dysfunction in weaning failure - Transitions in chronic NIV - New insights in weaning from invasive ventilation - Noninvasive ventilation (NIV) in the clinical practice: How do I do it? - Difficult weaning from mechanical ventilation - Chronic ventilatory support in different diseases: Is one way fitting all? - Strategies to optimise early mobilisation and rehabilitation in intensive care - Noninvasive ventilation (NIV) in the clinical practice: How do I do it? - Acute respiratory failure: Hypercapnic and diagnosis

Session: Acute respiratory failure: Hypercapnic and diagnosis
Session type: Oral poster discussion
Number: 105

Abstract

Mechanical ventilators can differ in performance to one another. Bench studies that use specific ventilation scenarios allow for testing and comparison of their operation in conditions that replicate the clinical setting.

The aim of this study was to evaluate the clinical performance of nine different ventilators (Philips Respironics Trilogy EV300, Ventec Life Systems VOCSN, Breas VIVO 65, Air Liquide Healthcare Monnal T60, Lowenstein Medical Elisa 500, Mindray SV300, Hamilton C3, Maquet-Getinge Servo-air, Drager Savina 300). The combination of three mechanical conditions, two different efforts, one leak level, and two ventilatory modes were used to simulate various pulmonary conditions.

The ventilator response time from trigger to flow delivery (TDT) differed between devices. Both the Trilogy EV300 and Elisa 500 showed the fastest response times; however, the Elisa 500 had six test cases with asynchronous breaths, therefore, the TDT results are reflective for only those fewer synchronous breaths. In sharp contrast, the Monnal T60 demonstrated numerous asynchrony issues which impacted the assessment. In the pressurization testing the Trilogy EV300 and Elisa 500 demonstrated the best performance. The Mindray SV300, Monnal T60, Servo-air and VOCSN showed poorer pressurization which may reflect clinically as unmet demand needs of the spontaneous triggering patient. Trilogy EV300 and Savina 300 demonstrated no asynchronies in both PSV testing scenarios. Moreover, the Monnal T60 had a high incidence of asynchronies impacting the ability to report some of the other testing conditions.

In conclusion, as demonstrated by this bench study, mechanical ventilators differ in performance to one another.

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Citations should be made in the following way:
J. Yarascavitch (Pittsburgh, United States), F. Belda (Valencia, Spain), D. Carlos (Valencia, Spain), P. Jaume (Valencia, Spain), M. Sara (Valencia, Spain), S. Marina (Valencia, Spain). NIV bench study: performance of nine ventilators. Respiratory Failure and Mechanical Ventilation Conference 2022 - Opening session: Essentials of respiratory physiology - Assessment of respiratory muscle function - Pulmonary infections in mechanically ventilated patients - Telemonitoring of patients with chronic respiratory failure - Diagnostics and interventions - Acute respiratory failure: COVID-19 - Interstitial lung disease and pulmonary hypertension - Early rehabilitation - Acute respiratory failure: Invasive mechanical ventilation - HFNO and NIV for acute hypoxemic failure - Longterm NIV miscellaneous - Controversies in acute respiratory failure - The role of respiratory muscle dysfunction in weaning failure - Transitions in chronic NIV - New insights in weaning from invasive ventilation - Noninvasive ventilation (NIV) in the clinical practice: How do I do it? - Difficult weaning from mechanical ventilation - Chronic ventilatory support in different diseases: Is one way fitting all? - Strategies to optimise early mobilisation and rehabilitation in intensive care - Noninvasive ventilation (NIV) in the clinical practice: How do I do it? - Acute respiratory failure: Hypercapnic and diagnosis

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