Comparative usability of manual defibrillators – A human factors study

Autor: Stefan Schumann, Axel Schmutz, Kim Feger, Johannes Spaeth
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Resuscitation Plus, Vol 17, Iss , Pp 100526- (2024)
Druh dokumentu: article
ISSN: 2666-5204
DOI: 10.1016/j.resplu.2023.100526
Popis: Background: A manual defibrillator represents key equipment for resuscitation of cardiac arrest scenario. Improper or slow operation of a defibrillator may adversely affect acute care. A self-explanatory interface facilitates handling and decreases the risk of operating errors. Therefore, we evaluated the usability of four commercially available defibrillators. Methods: 31 medical students executed 15 consecutive tasks on each defibrillator (Physio-Control Lifepak 20e, Schiller Defigard Touch 7, Corpuls 3 and Zoll X-Series). The operators’ gaze was measured via eye-tracking and frequencies of required assistances and task completion times were recorded. Additionally, subjective perception of usability was assessed by a standardized questionnaire. Results: Least assistances (16) were required when operating the Lifepak 20e and most (63) when operating the X-Series. Cumulative task completion times were shortest in the Lifepak 20e (124 ± 31 s), followed by the Corpuls 3 (220 ± 69 s), the Defigard Touch 7 (225 ± 81 s) and the X-Series (289 ± 85 s; p
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