A flexible pressure sensor could correctly measure the depth of chest compression on a mattress

Autor: Maeda Ichinosuke, Yota Kokubo, Kouichiro Minami, Hibino Shingo
Rok vydání: 2015
Předmět:
Zdroj: The American journal of emergency medicine. 34(5)
ISSN: 1532-8171
Popis: Background Feedback devices are used to improve the quality of chest compression (CC). However, reports have noted that accelerometers substantially overestimate depth when cardiopulmonary resuscitation (CPR) is performed on a soft surface. Here, we determined whether a flexible pressure sensor could correctly evaluate the depth CC performed on a mannequin placed on a mattress. Methods Chest compression was performed 100 times/min by a compression machine on the floor or a mattress, and the depth of CC was monitored using a flexible pressure sensor (Shinnosukekun) and CPRmeter ™ . The depth of machine-performed CC was consistently 5cm. We compared data from the feedback sensor with the true depth of CC using dual real-time auto feedback system that incorporated an infrared camera (CPR evolution ™ ). Results On the floor, the true depth of CC was 5.0±0.0cm (n=100), or identical to the depth of CC performed by the machine. The Shinnosukekun ™ measured a mean (±SD) CC depth of 5.0±0.1cm (n=100), and the CPRmeter ™ measured a depth of 5.0±0.2cm (n=100). On the mattress, the true depth of CC was 4.4±0.0cm (n=100). The Shinnosukekun ™ measured a mean CC depth of 4.4±0.0cm (n=100), and the CPRmeter ™ measured a depth of 4.7±0.1cm (n=100). The data of CPRmeter ™ were overestimated ( P ™ -measured depth). Conclusion The Shinnosukekun ™ could correctly measure the depth of CC on a mattress. According to our present results, the flexible pressure sensor could be a useful feedback system for CC performed on a soft surface.
Databáze: OpenAIRE