动脉搏动消失法在气囊止血带有效压测定中的应用

目的 探讨动脉搏动消失法在气囊止血带有效压测定中的应用。方法 选择骨科四肢手术患者152例，将上肢和下肢患者分层抽样，再简单随机分组。观察组的充气压力：上肢为桡动脉搏动消失的压力加2～3kPa，下肢为足背动脉搏动消失的压力加3～5kPa；对照组的充气压力：采用气囊止血带使用说明书上提示的数值，上肢为25～30kPa，下肢为40～50kPa。结果 观察组患者上肢、下肢及对照组患者下肢的止血效果满意，对照组上肢的止血效果不满意；观察组与对照组的止血带副损伤比较，差异有统计学意义。结论 动脉搏动消失法可用于气囊止血带有效压的测定。

Application of pulse disappearance method in testing the effective charge pressure of pneumatic tourniquet

Objective To analyze the effective individual charge pressure of pneumatic tourniquet. Method Choose 152 patients after orthopaedic limb operation. Choose individual samples of upper limbs and lower limbs patients and then divide them into observation group and control group randomly. Charge pressure of observation group： the disappearing pressure of radial artery beating for upper limb is 2--3kPa, the disappearing pressure of dorsal artery beating for power limb is 3～5kPa. The numerical value of charge pressure on the instruction of pneumatic tourniquet for control group are 25～30kPa for upper limb and 40～50kPa for lower limb. Result The hemostasia effects of upper and lower limb in observation group and lower limb in control group are satisfactory. The hemostasia effect of upper limb in observation group is unsatisfactory. There is significant difference between the by damage of tourniquet for observation group and control group （P〈0.01 ）. Conclusion The method of pulse disappearance can be applied in testing the effective pressure of pneumatic tourniquet.