Quantitative Assessment of Superficial Venous Insufficiency Using Duplex Ultrasound and Air Plethysmography
Quantitative Assessment of Superficial Venous Insufficiency Using Duplex Ultrasound and Air Plethysmography
复制标题
使用双重超声和空气体积描记法定量评估浅静脉功能不全
作者：
T. Yamaki;M. Nozaki;K. Sasaki
Objective.本研究的目的是使用彩色双功能超声定量评估孤立性浅静脉功能不全肢体的静脉反流。此外，使用空气体积描记法（APG）研究了多普勒衍生峰值流速、反流持续时间和CEAP分类的可能相关性。方法.通过双功扫描选择了109例孤立性浅静脉功能不全患者的146条下肢进行前瞻性研究。反流定义为反流持续时间≥0.5秒。本研究在一所大学医院进行。在患者站立的情况下，通过反流持续时间、逆行峰值速度、隐股和隐窝交界处以及大腿大隐静脉的反流量来评估静脉反流。APG获得的值为静脉容积（VV）、静脉充盈指数（VFI）、射血分数（EF）和残余静脉分数（RVF）。显著差异定义为P <0.05。分析了三组肢体：A组肢体的逆行峰值速度大于30 cm/s，反流持续时间小于3秒; B组肢体的逆行峰值速度≥30 cm/s，反流持续时间大于3秒; C组肢体的逆行峰值速度小于30 cm/s，反流持续时间大于3秒。结果A组和B组包含103条肢体，其中24条为CEAP 5级和6级。C组包括43条肢体，其中没有一条是5级或6级。A组的APG显示出显著反流，VFI显著高于B组和C组（分别为P = .0007和P = .0064）。峰值逆行反流速度与VFI之间存在显着相关性。结论.严重慢性静脉功能不全见于反流速度高（大于30 cm/s）的肢体，反流持续时间与严重慢性功能不全无关。
Objective. The purpose of this study was to quantitatively evaluate venous reflux in limbs with isolated superficial venous insufficiency using color duplex ultrasound. In addition, air plethysmography (APG) was used to investigate possible correlations of duplex‐derived peak velocity, duration of reflux, and CEAP classification. Methods. One hundred and forty‐six legs in 109 patients with isolated superficial venous insufficiency refluxing throughout the length of the limb were selected for prospective study by duplex scan. Reflux was defined as duration of reflux ≥0.5 seconds. This study was conducted in a university hospital. Venous reflux was evaluated with the patients standing, by the duration of reflux, retrograde peak velocity, reflux volume at the saphenofemoral and saphenopopliteal junction as well as the greater saphenous vein in the thigh. Values obtained by APG were the venous volume (VV), venous filling index (VFI), ejection fraction (EF), and residual venous fraction (RVF). A significant difference was defined as P < .05. Three groups of limbs were analyzed: group A limbs with a retrograde peak velocity greater than 30 cm/second and a duration of reflux of less than 3 seconds; group B with a retrograde peak velocity ≥30 cm/second and a duration of more than 3 seconds; and group C with a retrograde peak velocity of less than 30 cm/second and a duration of reflux of more than 3 seconds. Results. Groups A and B contained 103 limbs, and 24 of these were in CEAP class 5 and 6. Group C contained 43 limbs, none of which were in class 5 or 6. APG demonstrated significant reflux in group A, and VFI was significantly higher compared to group B and group C (P = .0007 and P = .0064, respectively). A significant correlation was demonstrated between peak retrograde reflux velocity and VFI. Conclusions. Severe chronic venous insufficiency is found in limbs with high reflux velocity (greater than 30 cm/second) and the duration of reflux does not correlate with severe chronic insufficiency.
通过双功能超声扫描对静脉瓣膜反流进行定量分段评估。
影响因子：
4.3
作者：
vanBemmelen,PS;Bedford,G;Beach,K;Strandness,DE
通讯作者：
Strandness,DE