title: Studies on Budd-chiari syndrome complicated with hepatocellular carcinoma: most patients without inferior vena cava obstruction.
abstract: BACKGROUND
  To investigate the characteristics of Budd-Chiari syndrome (B-CS) types, rate of HCC complicated by different types of B-CS and values of CTA in diagnosis of B-CS and HCC complicated by B-CS.
  
  
  METHODS
  494 patients with B-CS were analyzed retrospectively. All patients underwent CTA, which was used to assess the accuracy of diagnosing B-CS and the rate of HCC complicated by various kinds of B-CS. Digital subtraction angiography (DSA) and pathological examination were used as gold standard.
  
  
  RESULTS
  Among 494 patients diagnosed by DSA, there were 21 (4.3%) cases of inferior vena cava type, 80 (16.2%) cases of hepatic vein type and 393 (79.6%) cases of hepatic vein combined with inferior vena cava complex type. The accuracy of diagnosing B-CS by CTA was 86.6% (428/494), in which the accuracy of diagnosing inferior vena cava type was 85.7% (18/21), 83.8% (67/80) for hepatic vein type and 87.3% (343/393) for complex type. The rate of HCC complicated by B-CS was 12.8% (63/494), among which inferior vena cava type was 4.8% (1/21), hepatic vein type was 11.3% (9/80) and complex type was 13.5% (53/393). There were no statistic differences between these three types (P=0.459). The accuracy of diagnosing HCC by CTA was 82.5% (52/63).
  
  
  CONCLUSIONS
  B-CS in patients from China's Yellow River basin is mainly hepatic vein combined with inferior vena cava complex type, which is more likely to be complicated by HCC. CTA plays an important role in diagnosing B-CS and HCC complicated by B-CS.
authors: Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, China.
authors: Xiaowei
authors: X
authors: Dang
authors: Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, China.
authors: Luhao
authors: L
authors: Li
authors: Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, China.
authors: Suxin
authors: S
authors: Li
authors: Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, China.
authors: Yafei
authors: Y
authors: Wang
authors: Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, China.
authors: Hai
authors: H
authors: Li
authors: Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, China.
authors: Shaokai
authors: S
authors: Xu
authors: Department of Hepatopancreatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, China.
authors: Peiqin
authors: P
authors: Xu
keywords: Budd-chiari syndrome; computed tomographic angiography; hepatocellular carcinoma; incidence