Effect of real-time feedback system on the quality reduction of chest compression
Zhang Hui
Xu Jun
Zhu Hua-dong
Wang Jiang-shan
Han Xue
Fan Yuan-chun
Yu Xue-zhong
Abstract：Objective To study the effect of real-time feedback system on the quality of chest compression.Methods Using the method of control study,197 graduate students operated CPR on a resuscitation manikin for two times under the monitoring of CPR quality monitoring system.Every time they must complete 5 cycles(30∶2) for about 2 mins.The first time they were back to computer monitors and the second time they were facing to the monitor so that they could justify their operating during the CPR course according to the feedback data.The chest compression average depth (cm) for Cycle 1 and Cycle 5 and chest compression release velocity(CCRV) (mrn/s) were collected for the 1st minute and 2nd minute and then analyzed.Results Mean compression depth of Cycle 1 respectively was (5.49 ± 0.05) cm vs.(5.42 ± 0.03) cm between two times and Cycle 5 was (5.28 ± 0.06) cm vs.(5.38 ± 0.03) cm.The mean CCRV respectively was (428.50 ± 5.48) nmm/s vs.(408.10 ± 4.08) mm/s in the first minute and (394.00 ± 5.62) mm/s vs.(389.20± 3.83) mm/s in the second minute between two times.There were no significant differences.The reduction of depth was (0.21 ± 0.04) cm vs.(0.04 ± 0.03) cm.The reduction of CCRV was (34.29 ± 3.14) mm/s vs.(18.83 ± 2.53) mm/s.There were significant differences (P ＜ 0.01).Conclusion CPR real-time feedback system can't stop the decline of the quality of chest compression during the 2 minutes operating but can effectively slower the rate of quality reduction.
Keywords：Cardiopulmonary resuscitation (CPR)Quality monitoringReal-time feedback system
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 298-300 )