救护车上保持施救者身体平衡的固定架对胸外按压质量影响

Effects of the fixator with maintaining the body balance of the rescuer for the quality of chest compression on the ambulance

目的探讨保持救护车上施救者身体平衡的固定架对胸外按压质量的效果,同时评价其对复苏实施者背部疼痛程度的影响。方法实验模拟40个院前呼吸心搏骤停病人救护车转运的场景,招募的8名胸外按压实施者在救护车转运过程中在模拟人上进行胸外心脏按压,通过心肺复苏反馈系统评价胸外心脏按压质量,同时应用numerical rating scale疼痛数字评价量表评价复苏实施者背部疼痛的程度。结果与未应用平衡固定架组相比,应用平衡架固定架组有较高的有效按压深度比例[(72±4)%比(50±3)%,t=6.84,P<0.01],较低的按压中断时间比例[(10±3)%比(24±5)%,t=-11.46,P<0.01)]和背部疼痛评分[1.5(1.0)分比3.0(1.0)分,Z=-3.55,P<0.01]。结论这种救护车上保持施救者身体平衡的固定架有益于提高胸外心脏按压质量,同时降低复苏实施者背部疼痛的程度。

Objective To introduce the effect of the fixator with maintaining the body balance of the rescuer for the quality of chest compression on the ambulance,and to evaluate the severity of back pain.Methods The experiment simulated the ambulance transshipment of 40 patients with pre-hospital respiratory arrest,and the recruited 8 chest compression practitioners(CPR)performed chest external cardiac compression on the simulated person during the ambulance transport.The quality of chest compressions was evaluated using cardiopulmonary resuscitation feedback system,and the severity of back pain scored using numerical rating scale were evaluated.Results Compared wuth CPR without stabilisation device,CPR with stabilisation device had higher percentage of chest compressions with adequate depth[(72±4)%vs.(50±3)%,t=6.84,P<0.01],lower no-flow fraction[(10±3)%vs.(24±5)%,t=-11.46,P<0.01)and lower back pain scored[1.5(1.0)vs.3.0(1.0),Z=-3.55,P<0.01].Conclusion CPR with stabilisation device during ambulance transport could effectively improve quality of cardiopulmonary resuscitation and reduce the severity of back pain.