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目的探讨动静脉足泵对老年外周动脉硬化闭塞病(PAOD)患者胭动脉血流动力学参数的影响。方法选取65例PAOD患者的43条下肢(PAOD组),25例健康体检者的50条下肢(健康组),2组分别使用动静脉足泵治疗前、治疗30 min即刻及停用的60 s内测量胭动脉平均容积流量、平均血流速度、收缩期峰值速度和直径,分别比较PAOD组和健康组胭动脉血流动力学参数的变化。结果与治疗前比较,PAOD组和健康组治疗30 min即刻、停用的60 s内胭动脉平均容积流量、平均血流速度和收缩期峰值速度明显提高(P<0.01);与治疗30 min即刻比较,停用的60 s内胭动脉平均容积流量、平均血流速度和收缩期峰值速度明显下降(P<0.01)。结论动静脉足泵可能会成为一种改善老年PAOD患者下肢动脉血流量安全、无创的新手段。
Objective To investigate the effects of arteriovenous pump on the nocturnal hemodynamics in elderly patients with peripheral arterial occlusive disease (PAOD). Methods Forty-three PAOD patients (PAOD group) and 25 healthy subjects (healthy group) were selected from 65 patients with PAOD. Two groups were treated with arterial and venous foot pump before treatment, 30 min immediately after treatment and 60 s The average volume flow, mean flow velocity, peak systolic velocity and diameter were measured in the pulsatile artery. The hemodynamic variables were compared between the PAOD group and the healthy group. Results Compared with those before treatment, the mean volume flow velocity, mean blood flow velocity and peak systolic velocity of PAOD group and healthy group were significantly increased within 30 seconds of treatment (P0.01) In comparison, the average volume flow, average blood flow velocity and systolic peak velocity of cochlear artery in 60 s were significantly decreased (P <0.01). Conclusion Arteriovenous foot pump may be a new method to improve the safety and non-invasiveness of lower extremity arterial blood flow in elderly patients with PAOD.