Research On The Impact Of Real-time Feedback Device On Cardiopulmonary Resuscitation Quality Of Public And Medical Staff

Purpose: 1.Observe whether the real-time feedback device can improve the compression quality of Cardiopulmonary Resuscitation(CPR)used by different populations with different spring elasticity coefficients;2.Study the relationship between CPR compression quality,acting,fatigue and different populations with different spring elasticity coefficients.Method: 1.Research objects and grouping A total of 235 volunteers(129 non-medical personnel and 106 medical staff)were selected and trained according to certain standards.,6-minutes continuous chest compressions(CC)were performed according to the 2015 Guidelines for AHA Cardiopulmonary Resuscitation and Cardiovascular First Aid.Volunteers are randomly divided into 8 groups according to different spring elasticities,the coefficient(k)and whether the feedback device is applied.The group with no feedback device has no prompt,and there is a voice prompt when incorrect actions appear and correct it in time.Nonmedical personnel are divided into 4 groups,group A(k= 6N/mm,no feedback,32),group B(k=6N/mm,feedback,33),group C(k=8N/mm,no feedback,30),group D(k=8N/ Mm,feedback,34 people).Medical personnel were divided into 4 groups,E group(k=6N/mm,no feedback,25),F group(k=6N/mm,feedback,27),group G(k=8N/mm no feedback,27),Group H(k = 8 N/mm,with feedback,27).2.Monitoring indicators and statistical analysis The CPR quality monitoring indicators were evaluated including mean depth(cm),average frequency(seconds/minute),retention rate(%),correct rate(%),total work(J)for each group,blood pressure,heart rate,blood lactate level before and after pressing.Statistical analysis: The paired data were paired t-test.One-way analysis of variance was used for comparison between multiple groups.Two independent sample t-tests were used for the comparison of parameter variables.Mann-Whitney was used for non-parametric test of count data.Correlations such as heart rate and lactate change were tested by Pearson correlation analysis.Result: 1.In the average compression depth,A group was higher than C group,B group was higher than D group,E group was higher than G group,F group was higher than H group,the differences are statistically significant(P<0.05);the B group was higher than the A group,the F group was higher than the Egroup.The differences are statistically significant(P<0.05).However,Pressing depth is not statistical difference between group G and group H,group C and group D.4.In terms of mean compression retention rate,A group was higher than C group,A group was higher than B group,Ggroup was higher than E group,E group was higher than F group,the difference was statistically significant(P<0.05);and C group and D group,G group and In group H,the difference was not statistically significant(P>0.05).5.In terms of average compression accuracy,group A was higher than group C,group B was higher than group D,and group F was higher than group H(P<0.05).The B group was higher than the A group,and the F group was higher than the E group.The differences are statistically significant(P<0.05).There is no significant difference between group C and group D,group G and group H(P>0.05).6.In terms of subjective fatigue,although each group of subjects was in a relatively relaxed state at the 2 min,In the non-medical staff group,k=6N/mmm was significantly(9.484±0.393vs8.563±0.308,P=0.027),However,The quality of the press has been significantly reduced.In the non-medical staff,the k=6N/mm group was significantly paralyzed[(46.59±1.197 vs.48.93±0.764)mm,P=0.01].6.In terms of subjective fatigue and total work,non-medical personnel and medical staff were negatively correlated(medical staff k=6N/mm,r=-0.290,P=0.037;k=8N/mm,r=-0.704,P<0.01;non-medical staff k=6 N/mm,r=-0.625,P<0.01;k=8 N/mm,r=-0.452,P=0.000).Conclusion: 1.According to the 2015 AHA Guidelines for CPR and Cardiovascular First Aid,When the coefficient of elasticity is small,the real-time feedback device can improve the CPR quality of non-medical and medical personnel;when the coefficient of elasticity is big,the real-time feedback device does not improve the CPR quality of non-medical and medical staff;2.At the press of the second minute,although the press is relatively easy,there has been a drop in the press quality,in accordance with the guidelines proposed to alternate every 2 minutes to ensure the quality of the press;3.As time increased,the reduction in press quality and work performance was associated with an increase in fatigue,which was evident in the medical staff k = 8 N/mm group.