Einwirkung von Hypoxie auf die Qualität der Thoraxkompression in einer simulierten Flugzeugkabine in Reiseflughöhe

ZUSAMMENFASSUNG

Zwischen 1/15 000 und 1/50 000 Passagiere haben während eines Fluges akute medizinische Probleme, wobei Herzstillstände, die eine kardiopulmonale Wiederbelebung (CPR) erfordern, 0,3 % der medizinischen Notfälle ausmachen. Hypoxie in der Flugzeugkabine könnte die Sauerstoffversorgung und die körperliche Leistungsfähigkeit des Helfenden beeinträchtigen, deshalb wurde eine randomisierte, kontrollierte Doppelblindstudie durchgeführt, um die Hypothese zu testen, dass Hypoxie die Effektivität der CPR verringert. 24 medizinische Fachkräfte wurden in 2 verschiedene Studienarme randomisiert, die jeweils 2 Bedingungen testeten. Mixed ANOVAs mit Post-hoc-False-Discovery-Rate mit paarweisen Vergleichen zeigten, dass eine längere Hypoxieexposition, die den Bedingungen eines Langzeitflugs entspricht, die Qualität der Thoraxkompressionen beeinträchtigen kann. Zusätzlicher Sauerstoff für das medizinische Personal ist eine wirksame Gegenmaßnahme.

ABSTRACT

Between 1/15 000 and 1/50 000 passengers experience acute medical problems during a flight, with cardiac arrests requiring cardiopulmonary resuscitation (CPR) accounting for 0.3 % of medical emergencies. Hypoxia in the aircraft cabin could affect the oxygen supply and physical performance of the rescuer, so a randomized, controlled, double-blind study was conducted to test the hypothesis that hypoxia reduces the effectiveness of CPR. 24 healthcare professionals were randomized into 2 different study arms, each testing 2 conditions. Mixed ANOVAs with post-hoc false discovery rates with pairwise comparisons showed that prolonged exposure to hypoxia, equivalent to the conditions of a long-duration flight, may impair the quality of chest compressions. Supplemental oxygen for medical personnel is an effective countermeasure.

Key words

hypoxia - CPR - resuscitation - IFME

Publication History

Article published online:
29 May 2024

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