Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Clin Mol Hepatol. 2012 Jun;18(2):178-84. doi: 10.3350/cmh.2012.18.2.178. Epub 2012 Jun 26.
BACKGROUND/AIMS: The aim of this study was to identify the parameters that could noninvasively predict the presence of esophageal/gastric varices and portal hypertensive gastropathy (PHG) in patients with chronic liver disease (CLD), and to determine the accuracy of those parameters.
We retrospectively analyzed 232 patients with CLD who underwent both upper endoscopy and liver CT within an interval of 3 months. The multidimensional index (M-Index) for spleen volume was obtained from the multiplication of splenic length, width, and thickness, as measured by computer tomography.
The multivariate analysis revealed that platelet, albumin, and M-Index were independently associated with the presence of varices and PHG. We combined three independent parameters, and developed a varices and portal hypertensive gastropathy (VAP) scoring system (=[platelet count (/mm(3))×albumin (g/dL)]/[M-Index (cm(3))]). The area under the receiver operating characteristic curve of the VAP score was 0.850 (95% confidence interval, 0.801-0.899). The VAP cut-off value of 861 had a sensitivity of 85.3%, a positive likelihood ratio of 3.17, and a negative predictive value of 86.4%. For predicting high-risk lesions for bleeding, with a cut-off value of 861 the sensitivity was 92.0%, the positive likelihood ratio was 2.20, and the negative predictive value was 96.4%.
The VAP score can predict the presence of varices and PHG in patients with CLD and may increase the cost-benefit of screening endoscopy in the clinical practice setting. A prospective validation study is necessary in the future.
背景/目的:本研究旨在确定可无创预测慢性肝病(CLD)患者食管/胃静脉曲张和门静脉高压性胃病(PHG)存在的参数,并确定这些参数的准确性。
我们回顾性分析了 232 例在 3 个月内同时接受上消化道内镜和肝脏 CT 检查的 CLD 患者。脾体积的多维指数(M-Index)是通过计算机断层扫描测量的脾长、宽和厚的乘积获得的。
多变量分析显示,血小板、白蛋白和 M-Index 与静脉曲张和 PHG 的存在独立相关。我们结合了三个独立的参数,并开发了一个静脉曲张和门静脉高压性胃病(VAP)评分系统(=[血小板计数(/mm(3))×白蛋白(g/dL)]/[M-Index(cm(3))])。VAP 评分的受试者工作特征曲线下面积为 0.850(95%置信区间,0.801-0.899)。VAP 截断值为 861 时,敏感性为 85.3%,阳性似然比为 3.17,阴性预测值为 86.4%。对于预测出血高危病变,截断值为 861 时,敏感性为 92.0%,阳性似然比为 2.20,阴性预测值为 96.4%。
VAP 评分可预测 CLD 患者静脉曲张和 PHG 的存在,可能增加临床实践中内镜筛查的成本效益。未来需要进行前瞻性验证研究。