Cardiac massage in microgravity
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Cardiac Massage in Microgravity. Thais Russomano* João de C. Castro** Simon Evetts*** Lisa Evetts*** John Ernsting***. *Microgravity Lab/PUCRS, Brazil **Fundação Ruben Berta, Brazil *** King’s College London, UK. Objectives.

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Cardiac massage in microgravity
Cardiac Massage in Microgravity

Thais Russomano*

João de C. Castro**

Simon Evetts***

Lisa Evetts***

John Ernsting***

*Microgravity Lab/PUCRS, Brazil **Fundação Ruben Berta, Brazil

***King’s College London, UK


Objectives
Objectives

  • To test the feasibility and practicability of performing CPR in microgravity

    • single person

    • no equipment

  • Access the victim

  • Open the airway

  • Perform mouth-to-mouth ventilation

  • Perform external cardiac massage (ECM)


  • Ecm new technique
    ECM - New Technique

    • The practitioner encircles the thorax of the victim with his legs in order to hold the patient close to him whilst compressing the patient’s chest between his hands and legs


    Cardiac massage in space
    Cardiac Massage in Space

    JSC/NASA - s 92 34279


    Cardiac massage in space1
    Cardiac Massage in Space

    JSC/NASA - s 92 34275


    Cardiac massage preliminary study
    Cardiac Massage Preliminary Study



    Method
    Method

    • 29th ESA Parabolic Flight Campaign

    • 3 subjects

    • CPR manikin - Resusci Anne, Laerdal, UK

    • European Resuscitation Council

      • External Cardiac Massage:

        • Chest Compression = 40 - 50 mm

        • Compression rate = 80 - 100 per min



    Results
    Results

    • Number of parabolas = 93

    • Number of chest compressions = 672

      Chest Compression

      Mean +/- SE

      • Depth 36.1 +/- 1 mm

      • Rate 80.2 +/- 3.2 per min


    Conclusion
    Conclusion

    • Chest compression rate and depth were close to those specified by the European Resuscitation Council

    • The new single person technique of ECM can be performed efficiently in microgravity


    Further studies
    Further Studies

    • To determine

      • the maximum duration of ECM

      • the feasibility of performing mouth-to-mouth ventilation

      • minimum leg length required

      • upper limb strength required

    • Techniques to be used

      • Body suspension studies

      • Water immersion studies


    Further studies1
    Further Studies

    • Body suspension studies


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