Out-of-hospital cardiac arrest (OHCA) is a major public health problem, with around 40,000 victims each year in France. Their survival rate remains dramatically low, at less than 10%. In the event of pre-hospital cardiac arrest, rescuers perform resuscitation techniques using equipment for which they have been trained. They perform cardiopulmonary resuscitation (CPR) by alternating 30 chest compressions with 2 insufflations (30/2) with a manual insufflator bag. In basic life supports, insufflations should result in chest rise, but guidelines do not specify a precise volume. Recently, medical devices have been developed that enable precise measurement of ventilatory volumes. In simulation, these devices show hyperventilation in volume and frequency in mannequins. But no clinical study has analyzed insufflator bag ventilation maneuvers in real-life situations on pre-hospital cardiac arrest patients. The aim of this study is to analyze ventilation parameters in current practice in relation to standards, and the factors influencing the quality of ventilation maneuvers.
Study Type
OBSERVATIONAL
Enrollment
120
Measurement of ventilatory parameters during manual ventilation by professional rescuers during out-of-hospital cardiac arrest
Paris Fire Brigade
Paris, France
Tidal volume
Measurement of volume (mL) provided by the BLS Teams \[air + oxygen\] for each manual insufflation performed by the rescuer
Time frame: up to 20 minutes (end of BLS-CPR)
chest rise
concomitant chest rise (YES/NO) during each ventilation procedure
Time frame: up to 20 minutes (end of BLS-CPR)
Ventilation rate
Ventilation rate per min. achieved by the rescuer
Time frame: up to 20 minutes (end of BLS-CPR)
Insufflation time
Insufflation time (seconds) per ventilation procedure
Time frame: up to 20 minutes (end of BLS-CPR)
Face mask leakage
face mask leakage per ventilation procedure
Time frame: up to 20 minutes (end of BLS-CPR)
Volume received by the patient
Volume received (mL) by the patient per ventilation procedure
Time frame: up to 20 minutes (end of BLS-CPR)
Survival to day 60 after cardiac arrest
Survival curve over the first 60 days
Time frame: up to 60 days
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