静脉支架通畅性可能受侧支静脉管腔大小的影响。
Venous stent patency may be affected by collateral vein lumen size.
作者信息
van Vuuren Timme Maj, Doganci Suat, Toonder Irwin M, Graaf Rick De, Wittens Cees Ha
机构信息
1 Department of Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands.
2 Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands.
出版信息
Phlebology. 2019 Feb;34(1):32-39. doi: 10.1177/0268355518755959. Epub 2018 Mar 7.
PURPOSE
Deep venous thrombosis causes blood flow deviation. It is hypothesized that with stent placement, developed collateral veins become redundant. This article evaluates the relation between the surface area of the collaterals and stent patency.
METHODS
The azygos and hemiazygos veins were identified and the largest surface area was measured at thoracic level. Patency rates of stented tracts were evaluated and related to collateral vein lumen size.
RESULTS
The vena cava occlusion and the azygos and hemiazygos vein surface area measurements were positive and statistically significant related (OR 1.01, 95% CI 1.003-1.019, p = 0.004) respectively (and OR 1.007, 95% CI 1.001-1.013, p = 0.004). An azygos surface area measurement of 23 (p<0.001) and hemiazygos surface area measurement of 40 (p = 0.008) was shown as cut-off point related to higher occlusion rates.
CONCLUSIONS
The surface area of major venous collateral pathways seems to be related to stent occlusion in deep venous interventions.
目的
深静脉血栓形成会导致血流偏差。据推测，放置支架后，已形成的侧支静脉会变得多余。本文评估侧支静脉表面积与支架通畅性之间的关系。
方法
识别奇静脉和半奇静脉，并在胸部水平测量其最大表面积。评估支架置入通道的通畅率，并将其与侧支静脉管腔大小相关联。
结果
腔静脉闭塞与奇静脉和半奇静脉表面积测量结果呈正相关且具有统计学意义（分别为OR 1.01，95%CI 1.003 - 1.019，p = 0.004）（以及OR 1.007，95%CI 1.001 - 1.013，p = 0.004）。奇静脉表面积测量值为23（p < 0.001）和半奇静脉表面积测量值为40（p = 0.008）被显示为与更高闭塞率相关的截断点。
结论
在深静脉介入治疗中，主要静脉侧支通路的表面积似乎与支架闭塞有关。
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