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中华介入放射学电子杂志 ›› 2020, Vol. 08 ›› Issue (04) : 346 -349. doi: 10.3877/cma.j.issn.2095-5782.2020.04.010

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影像诊断

超声造影无创性评估下肢浅静脉血流阻断的初步研究
卢吴柱1, 陈慧1, 黄涌泉1, 张晶晶2, 梁艳2, 苏中振1, 白雪玲3,()   
  1. 1. 519000 广东珠海,中山大学附属第五医院超声科
    2. 519000 广东珠海,中山大学附属第五医院介入医学中心
    3. 519000 广东珠海,中山大学附属第五医院消毒供应中心
  • 收稿日期:2020-07-09 出版日期:2020-11-25
  • 通信作者: 白雪玲
  • 基金资助:
    中山大学附属第五医院护理科研基金(31019905030501)

A preliminary study of noninvasive evaluation of blocking superficial veins of lower limb by contrast-enhanced ultrasonography

Wuzhu Lu1, Hui Chen1, Yongquan Huang1, Jingjing Zhang2, Yan Liang2, Zhongzhen Su1, Xueling Bai3,()   

  1. 1. Department of Ultrasonic, the Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Zhuhai 519000, China
    2. Department of Interventional Medicine, the Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Zhuhai 519000, China
    3. Department of Central Sterile Supply, the Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Zhuhai 519000, China
  • Received:2020-07-09 Published:2020-11-25
  • Corresponding author: Xueling Bai
  • About author:
    Corresponding author: Bai Xueling, Email:
引用本文:

卢吴柱, 陈慧, 黄涌泉, 张晶晶, 梁艳, 苏中振, 白雪玲. 超声造影无创性评估下肢浅静脉血流阻断的初步研究[J/OL]. 中华介入放射学电子杂志, 2020, 08(04): 346-349.

Wuzhu Lu, Hui Chen, Yongquan Huang, Jingjing Zhang, Yan Liang, Zhongzhen Su, Xueling Bai. A preliminary study of noninvasive evaluation of blocking superficial veins of lower limb by contrast-enhanced ultrasonography[J/OL]. Chinese Journal of Interventional Radiology(Electronic Edition), 2020, 08(04): 346-349.

目的

探讨阻断下肢浅静脉的位置及最适压力值。

方法

选取12位健康志愿者的双侧下肢静脉为研究对象,经足背静脉进行超声造影,使用气压袖带分别在距离踝关节上方5、10、15 cm处绑扎并施加压力,当小隐静脉(small saphenous vein,SSV)不显影时为有效阻断下肢浅静脉血流,记录压力值。另外,评估踝上10 cm处有效阻断浅静脉前后,同侧腘静脉(popliteal vein,POPV)内径、流速及血流量的变化。

结果

踝上5、10、15 cm有效阻断下肢浅静脉的压力阈值分别为(66~69) mmHg(1 mmHg=0.133 kPa)、(68~71)mmHg、(73~75)mmHg(95%置信区间);踝上10 cm处有效阻断下肢浅静脉后,同侧POPV的内径、血流量显著增加(P<0.05),流速无明显增加(P>0.05)。

结论

踝上不同部位有效阻断下肢浅静脉所需要的压力阈值不同,超声造影可无创监测气压止血带有效阻断下肢浅静脉血流,为临床治疗下肢深静脉血栓提供帮助。

Objective

To explore the position and optimal pressure of blocking the superficial vein of lower extremities.

Methods

The bilateral lower limb veins of 12 healthy volunteers were selected for the study. Contrast-enhanced ultrasound was performed through the dorsalis pedis vein. Pneumatic cuffs were used to bind and apply pressure at 5 cm, 10 cm and 15 cm above the ankle joint. When the small saphenous vein (SSV) was not visible, the superficial vein blood flow of the lower extremities was effectively blocked and the pressure was recorded. In addition, the changes of diameter, flow velocity and blood flow of ipsilateral popliteal vein (POPV) before and after effective occlusion of superficial vein at 10cm of ankle were evaluated.

Results

The pressure thresholds of supramalleolar 5 cm, 10 cm and 15 cm for effectively blocking the superficial veins of lower extremities were (66-69) mmHg, (68-71) mmHg and (73-75) mmHg (95% confidence interval), respectively. After effectively blocking the superficial veins of lower extremities at 10 cm on the ankle, the internal diameter and blood flow of ipsilateral POPV increased significantly (P<0.05), but the flow velocity did not increase significantly (P>0.05).

Conclusions

Different parts of the ankle require different pressure thresholds to effectively block the superficial veins of the lower extremities. CEUS can non-invasive monitor the blood flow of the superficial veins of the lower extremities effectively blocked by pneumatic tourniquet, which is helpful for the clinical treatment of deep venous thrombosis of the lower extremities.

表1 12例健康志愿者的一般资料
图1 超声造影检查
表2 踝上不同部位有效阻断下肢浅静脉的压力平均值及95%置信区间(mmHg)
表3 踝上10 cm处有效阻断下肢浅静脉前后POPV内径、流速及血流量比较
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