• Tomohiko Sakai, Tetsuhisa Kitamura, Chika Nishiyama, Yukiko Murakami, Masahiko Ando, Takashi Kawamura, Osamu Tasaki, Yasuyuki Kuwagata, Takeshi Shimazu, and Taku Iwami.
• Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine.
• Circ. J. 2015 Jan 1; 79 (5): 1052-7.

BackgroundThis simulation trial aimed to compare the quality of cardiopulmonary resuscitation (CPR) with and without the newly-developed CPR support application on smartphones.Methods And ResultsIn this trial, participants were randomly assigned to either the CPR support application group or the control group, stratified by sex and previous CPR training. Participants' CPR skills were evaluated by a 2-min case-based scenario test using the Leardal Resusci Anne PC Skill reporting Manikin System(®). The outcome measures were the proportion of chest compressions performed in each group and the number of total chest compressions and appropriate chest compressions performed during the 2-min test period. A total of 84 participants were enrolled and completed the protocol. All participants in the CPR support application group performed chest compressions, compared with only 31 (75.6%) in the control group (P<0.001). Among participants who performed chest compressions during the 2-min test period, the number of total chest compressions was significantly higher in the CPR support application group than in the control group (211.6±29.5 vs. 77.0±43.3, P<0.001). The number of appropriate chest compressions tended to be greater in the CPR support application group than in the control group, although it was statistically insignificant (30.3±57.3 vs. 17.2±28.7, P=0.246).ConclusionsIn this cohort of laypersons, the newly-developed CPR support application for smartphones contributed to increasing the implementation rate and the number of total chest compressions performed and may assist in improving the survival rate for out-of-hospital cardiac arrests (UMIN000004740).

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