Quantitative segmental evaluation of venous valvular reflux with duplex ultrasound scanning.
Quantitative segmental evaluation of venous valvular reflux with duplex ultrasound scanning.
复制标题
通过双功能超声扫描对静脉瓣膜反流进行定量分段评估。
DOI：
10.1067/mva.1989.14123
复制
发表时间：
1989
影响因子：
4.3
通讯作者：
Strandness,DE
中科院分区：
文献类型：
--
作者：
vanBemmelen,PS;Bedford,G;Beach,K;Strandness,DE
本文对32例健康人下肢192个静脉段进行了深静脉瓣膜返流持续时间的研究。三种方法被用来引起反流在仰卧位和直立位Valsalva的动作，近端肢体压缩，并释放远端肢体压缩。使用气动袖带实现标准化按压。当使用这种方法研究瓣膜功能时，发现瓣膜完全关闭和逆行停止的时间比传统关闭方法短。远端袖带放气方法是唯一一种允许定量且可重复的方法来测量下肢各个水平静脉反流持续时间的方法。列出了通过该测试获得的股总静脉、股深静脉和股浅静脉以及膝盖和脚踝水平之间的腘静脉和胫后静脉以及脚踝处的胫后静脉的正常值。在腘静脉中，反流的中位持续时间为0.19秒; 95%的腘静脉值小于0.66秒。在远端区域，返流持续时间短且均匀。袖带放气试验相对于Valsalva方法的优势在于袖带方法不受存在回股瓣膜的阻碍。通过该试验可以更好地了解不同水平的深部瓣膜功能障碍的相对重要性以及瓣膜修复的预期受益。（J Vasc Surg1989;10：425-31.）
The duration of deep venous valvular reflux was studied in 192 venous segments of the legs of 32 patients in good health. Three methods were used to elicit reflux in the supine and upright positions—Valsalva's maneuver, proximal limb compression, and release of distal limb compression. Standardized compressions were achieved with pneumatic cuffs. When this approach was used to study valve function, the time to complete closure of the valve and cessation of retrograde flow was found to be shorter than that for conventional methods of closure. The distal cuff deflation method is the only one that permits a quantitative and reproducible method to measure duration of venous reflux at all levels of the lower limb. Normal values obtained with this test are presented for the common femoral, deep femoral, and superficial femoral veins and for the popliteal and posterior tibial veins midway between knee and ankle level and the posterior tibial vein at the ankle. In the popliteal vein, median duration of reflux is 0.19 second; 95% of the values in the popliteal vein are less than 0.66 second. In distal areas, duration of reflux is short and uniform. The advantage of the cuff deflation test over the Valsalva method is that the cuff method is not hindered by the presence of ileofemoral valves. A better understanding of the relative importance of deep valve dysfunction at different levels and the expected benefit of valve repair may be obtained with this test. (J Vasc Surg1989;10:425–31.)