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7例难以成活的病人:1.其中5例以经过 CPR 技术培训者和对照组比较各自对心排量的影响。发现受训组优于对照组(P<0.05);再由受训组以三种频率比较发现:随着按压频率增加,心排量升高(P<0.01),每搏量亦升高(P<0.05)。可以达到死亡前的一半左右。2.另2例比较了胸外与开胸按压的结果:胸外按压可以获得高于开胸的心排量(P<0.05),右室功为开胸按压的2~3倍。结论:110~130次/分的按压频率可以获得更好的心排量。胸外按压简便、易掌握、易普及而实用的优点应得到更大的发挥。
Seven patients who were hard to survive: 1. Five of them compared their effects on cardiac output with CPR-trained trainers and controls. The results showed that the training group was superior to the control group (P <0.05). Compared with the control group, the frequency of stroke increased (P <0.01) and the stroke volume also increased (P < 0.05). Can reach about half before death. The other two cases compared the results of thoracic and thoracic compression: thoracic compression can be obtained higher than the thoracic cardiac output (P <0.05), right ventricular function is 2 to 3 times the thoracic compression. Conclusion: 110 ~ 130 times / min compression frequency can get better cardiac output. Chest compression is simple, easy to grasp, easy to popularize and practical advantages should be greater play.