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Performance of ventilators at simulated altitude: study of FiO2

Service de Santé des Armées. Performance of ventilators at simulated altitude: study of FiO2. Jean-Pierre Tourtier , Thomas Leclerc, Marc Borne Military hospital Val-de-Grâce, Paris, France. Introduction (1):. Aero medical evacuation: ventilatory support

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Performance of ventilators at simulated altitude: study of FiO2

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  1. Service de Santé des Armées Performance of ventilators at simulated altitude: study of FiO2 Jean-Pierre Tourtier , Thomas Leclerc, Marc Borne Militaryhospital Val-de-Grâce, Paris, France

  2. Introduction (1): • Aero medical evacuation: ventilatory support • Ventilators: turbine technology • Hypobaric • FiO2 preset / assessed / delivered

  3. Introduction (2): • 2 ventilators: • T-bird VS02 LTV-1000

  4. Methods (1): • Cabin altitude simulation

  5. Methods (2): • Altitude simulated: • 1500 m (4000 feet) • 2500 m (6700 feet) • 3000 m (3000 feet)

  6. Methods (3): • Lung simulation: VT1 Bioteck • Normal lung: • (resistance : 5.6 cm H2O/L/min ; compliance : 50 ml/cm H2O) • Acute Respiratory Distress Syndrom: • (resistance : 3.9 cm H2O/L/min ; compliance : 20 ml/cm H2O)

  7. Methods (4): • Ventilation parameters:

  8. Measurements: • Actual FiO2 • paramagnetic analysis Methods (5):

  9. focused magnetic field • Oxygen is attracted • electric potential • « gold standard » Methods (6):paramagnetic analysis

  10. Results (1): Normal lung, ARDS: T-bird VS02

  11. Results (2): Normal lung, ARDS: T-bird VS02

  12. Results (3): Normal lung, ARDS: LTV-1000

  13. Results (4): Normal lung, ARDS: LTV-1000

  14. Results (5): exampleNormal lung, FiO2 set=50%

  15. Conclusion (1): T-bird VS02 • Variations between FiO2 set and delivered: high • Variations between FiO2 delivered and assessed: high • Inefficacity of ventilators Fi02 analysis

  16. Conclusion (2): LTV-1000 • Variations between FiO2 set and delivered: moderate • Variations between FiO2 delivered and assessed: high • Inefficacity of ventilators Fi02 analysis

  17. Conclusion (3): OXYMAN

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