• Min Hee Jung, Je Hyeok Oh, Chan Woong Kim, Sung Eun Kim, Dong Hoon Lee, and Wen Joen Chang.
• Department of Emergency Medicine, Sungae Hospital, Seoul, Republic of Korea.
• Am J Emerg Med. 2015 Aug 1;33(8):993-7.

ObjectiveWe investigated whether visual feedback from an accelerometer device facilitated high-quality chest compressions during an in-hospital cardiac arrest simulation using a manikin.MethodsThirty health care providers participated in an in-hospital cardiac arrest simulation with 1 minute of continuous chest compressions. Chest compressions were performed on a manikin lying on a bed according to visual feedback from an accelerometer feedback device. The manikin and accelerometer recorded chest compression data simultaneously. The simulated patient was deemed to have survived when the chest compression data satisfied all of the preset high-quality chest compression criteria (depth ≥51 mm, rate >100 per minute, and ≥95% full recoil). Survival rates were calculated from the feedback device and manikin data.ResultsThe survival rate according to the feedback device data was 80%; however, the manikin data indicated a significantly lower survival rate (46.7%; P = .015). The difference between the accelerometer and manikin survival rates was not significant for participants with a body mass index greater than or equal to 20 kg/m(2) (93.3 vs 73.3%, respectively; P = .330); however, the difference in survival rate was significant in participants with body mass index less than 20 kg/m(2) (66.7 vs 20.0%, respectively; P = .025).ConclusionsThe use of accelerometer feedback devices to facilitate high-quality chest compression may not be appropriate for lightweight rescuers because of the potential for compression depth overestimation.Trial RegistrationClinical Research Information Service (KCT0001449).Copyright © 2015 Elsevier Inc. All rights reserved.

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