Does accelerometer feedback on high-quality chest compression improve survival rate? An in-hospital cardiac arrest simulation.
OBJECTIVE
We investigated whether visual feedback from an accelerometer device facilitated high-quality chest compressions during an in-hospital cardiac arrest simulation using a manikin.


METHODS
Thirty 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.


RESULTS
The 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).


CONCLUSIONS
The 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.


BACKGROUND
Clinical Research Information Service (KCT0001449).
Department of Emergency Medicine, Sungae Hospital, Seoul, Republic of Korea.
Min Hee
MH
Jung
Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea. Electronic address: jehyeok.oh@gmail.com.
Je Hyeok
JH
Oh
Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
Chan Woong
CW
Kim
Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
Sung Eun
SE
Kim
Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
Dong Hoon
DH
Lee
Department of Emergency Medicine, Sungae Hospital, Seoul, Republic of Korea.
Wen Joen
WJ
Chang
D061725:Accelerometry; D000328:Adult; D005246:Feedback; D005260:Female; D006282:Health Personnel; D006323:Heart Arrest / Q000628:therapy*; D006336:Heart Massage / Q000592:standards*; D006801:Humans; D008297:Male; D008348:Manikins; D011446:Prospective Studies; D015996:Survival Rate; D055815:Young Adult