握拳频次对PICC置管病人上肢静脉血液流速的影响

Influence of fist frequency on upper extremity venous blood flow in PICC patients

[目的]探讨促进PICC置管病人上肢静脉血液加速和恢复的最佳握拳频次。[方法]选择身体健康志愿者30例和PICC置管病人10例为研究对象,采用彩色多普勒超声测量静息时、连续握拳10次、15次、20次、25次、30次、35次、40次及运动停止后每10min的腋静脉最大血液流速(Vmax)和平均血液流速(TMFV)。[结果]健康人群和PICC置管病人握拳运动后腋静脉Vmax和TMFV较静息时增加(P<0.05),其中连续握拳25次时血流增加到最高峰,握拳运动停止40min后Vmax和TMFV恢复接近静息状态。[结论]在握持运动25次时血流动力学效果最佳,主要表现为腋静脉Vmax和TMFV均明显增加,平卧40min后血液流速趋于静息状态,可作为预防PICC相关上肢静脉血栓的参考依据。

Objective:To probe into the best fist frequency for promoting upper extremity vemous blood acceleration and recovery in PICC patients.Methods:A total of 30 healthy volunteers and 10 patients with PICC were selected as research objects the maximum blood flow velocity(Vmax)and mean blood flow velocity(TMFV)of axillary vein were measured respectively at rest,continuous fist 10 times,15times,20 times,25times,30 times,35times,40 times,and every 10 mins after movement stop by using color Poppler ultrasound.Results:Vmax and TMFV in healthy crowd and PICC patients after fist movement increased compared resting(P<0.05),after continuous 25 times the velocity of blood flow increased to the peak,Vmax and TMFV recovered close to the resting state 40 min after stopping fist.Conclusion:The effcet of blood flow dynamics was the best in contincous fist 25 times,which mainly showed that the Vmax and TMFV significantly increased,after 40 mins of supining,blood flow tended to resting state,so it could provide reference for preventing PICC related upper venous thrombosis.