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J Int Med Res. 2013 Jun;41(3):664-72. doi: 10.1177/0300060513483413. Epub 2013 May 1.

Value of D-dimer and protein S for diagnosis of portal vein thrombosis in patients with liver cirrhosis.

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  • 1Department of Gastroenterology, Beijing Chao-yang Hospital Affiliate of Capital Medical University, Beijing, China.

Abstract

OBJECTIVE:

To investigate the value of D-dimer and protein S plasma concentrations for diagnosis of portal vein thrombosis (PVT) in patients with liver cirrhosis.

METHODS:

D-dimer and protein S were quantified, PVT was diagnosed by dynamic enhanced computed tomography and liver function was classified using the Child-Pugh system. Receiver operating curve analysis was performed.

RESULTS:

D-dimer increased, and protein S decreased, with decreasing liver function in the total study population (n = 188). D-dimer concentrations were significantly higher and protein S concentrations were significantly lower in patients with (n = 51) than those without PVT (n = 137). D-dimer had high specificity and negative predictive value (NPV) in Child-Pugh class A or B patients (cut-off values>0.56 mg/l and >1.18 mg/l, respectively). In class C patients>0.77 mg/l D-dimer had high sensitivity and NPV. Protein S had high sensitivity but low specificity in class A or B patients (cut-off values < 17.4 mg/l and <19.2 mg/l, respectively).

CONCLUSION:

Plasma D-dimer and protein S are potential biomarkers for PVT diagnosis in patients with cirrhosis. PVT can be excluded when D-dimer is low and protein S is elevated.

KEYWORDS:

D-dimer; Portal vein thrombosis; diagnosis; liver cirrhosis; protein S

PMID:
23637275
[PubMed - indexed for MEDLINE]
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