• Emerg Med J · Feb 2007

    Use of the Lund University Cardiopulmonary Assist System in the MD902: a fire safety assessment.

    • J S Farmery and M Carter.
    • Kent Air Ambulance Trust, Unit 14, Wheelbarrow Industrial Estate, Pattenden Lane, Marden, Kent TN12 9QJ, UK. jfarmery@gmail.com
    • Emerg Med J. 2007 Feb 1; 24 (2): 110111110-1.

    BackgroundThe Lund University Cardiopulmonary Assist System (LUCAS) is a gas-driven mechanical cardiopulmonary resuscitation device. If oxygen is used as the driving gas in a confined environment, there is a potential fire hazard. 24% oxygen is considered the threshold for increased risk.Objective And MethodsThree trials were conducted using different cabin ventilation settings to determine the rise in oxygen concentration in an MD902 helicopter during use of the LUCAS.ResultsThe oxygen concentration rose rapidly with the aircraft at rest, but during flight, using realistic cabin ventilation settings and durations of use, the oxygen concentration failed to reach 24%.ConclusionThe LUCAS is safe for normal-duration flights in an MD902 helicopter. It is potentially unsafe in a static MD902 and, by extrapolation, in other static aircraft of similar or smaller size such as the EC135 or Bolkow 105.

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