A novel method for dry weight assessment in hemodialysis patients: Utilization of inferior vena cava flat ratio to correct for individual variations in vessel diameter
A novel method for dry weight assessment in hemodialysis patients: Utilization of inferior vena cava flat ratio to correct for individual variations in vessel diameter
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DOI：
10.1111/j.1744-9987.2007.00454.x
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发表时间：
2007-02-01
影响因子：
1.9
通讯作者：
Tomita, Kimio
中科院分区：
文献类型：
--
作者：
Naruse, Mashiro;Sakaguchi, Shunichi;Tomita, Kimio
超声测量下腔静脉(IVC)直径可用于评估血液透析(HD)患者的干体重(DW)。我们以前观察到一些情况下，下腔静脉直径的不同取决于测量是从矢状面还是横断面图像获得的。因此，在本研究中，我们引入了一个新的概念，即平台率，来定义下腔静脉通缩的程度。下腔静脉的平坦率(F-IVC)由下腔静脉的横断面超声图像确定。目前的研究表明，F-IVC与体重变化(Delta BW(%))显著相关。类似地，HD期间F-IVC(Delta F-IVC)的变化与Delta BW(%)相关，但与HD期间收缩压或舒张压的变化无关。本研究的结果表明，F-IVC测量可以作为DW评估的有用工具。
Measurement of the inferior of vena cava (IVC) diameter by ultrasonography (US) has been shown to be useful for assessing dry weight (DW) in hemodialysis (HD) patients. We have previously observed some cases in which the IVC diameter differed depending on whether measurements were obtained from sagittal or cross-sectional images. Thus, in the present study we introduce a new concept, the flat ratio, to define the magnitude of IVC deflation. The flat ratio of the IVC (F-IVC) is determined from cross-sectional ultrasonographic images of the IVC. The present study showed that F-IVC is significantly correlated with changes in body weight (Delta BW(%)). Similarly, the change in F-IVC (Delta F-IVC) during HD is correlated with Delta BW(%) but not with changes in systolic or diastolic blood pressure during HD. The results of the present study suggest that F-IVC measurement can serve as a useful tool for DW assessment.