Selected blood tests may be useful in the diagnosis of venous thromboembolism (VTE), or in the identification of a congenital or acquired defect associated with the development of VTE. Several studies have shown the D-dimer assay to have a high negative predictive value but poor specificity when used in the detection of VTE. Yet in the emergency room setting, the D-dimer test may be useful if a...

The definition of thrombophilia includes the impact of hereditary base in the tendency to develop thrombosis and its clinical manifestations. Prothrombotic phenotype results from the interaction of inherited disorders of coagulation and various "clinical" risk factors such as obesity, immobility, major and minor surgery, hormone therapy, malignancy, etc. According to the accepted multicausal mo...

CONTEXT Factor V Leiden (FVL) is the most common heritable cause of venous thrombosis. It is caused by a single nucleotide substitution resulting in an R506Q missense mutation, resulting in factor V resistance to activated protein C (APC) inactivation. Carriers of FVL have an increased susceptibility to venous thrombosis, which is further increased in the presence of other genetic or environmen...

Aim: This study aimed to investigate the relationship between severe novel coronavirus pneumonia (NCP) and hypercoagulable conditions that predispose patients thrombosis such as prothrombin gene ( F2) rs1799963 (G20210A), factor V Leiden F5) rs6025 (G1691A) PAI-1 (rs1799768). Patients: NCP-diagnosed 62 previously healthy were enrolled for investigation of thrombophilia-related polymorphisms. Ma...

Levels of factor VIII (FVIII) are associated with the risk of venous thrombosis. The FVIII variation D1241E has been reported to be associated with decreased levels of FVIII. Our objective was to study whether D1241E is associated with levels of FVIII and the risk of venous thrombosis and whether this association is caused by D1241E or another linked variation. We analyzed the association of th...

BACKGROUND The largest percentage of failed invitro fertilization (IVF (cycles, are due to lack of implantation. As hereditary thrombophilia can cause in placentation failure, it may have a role in recurrent IVF failure. OBJECTIVE Aim of this case-control study was to determine whether hereditary thrombophilia is more prevalent in women with recurrent IVF failures. MATERIALS AND METHODS Cas...

BACKGROUND Factor V Leiden has been reported in 2%-30% of patients with portal vein thrombosis. This wide variation makes it difficult to assess the importance of factor V Leiden as a predisposing factor. METHODS Factor V Leiden was determined by restriction fragment length polymorphism in 112 patients with portal vein thrombosis, 104 with deep vein thrombosis and 98 control subjects. RESUL...

UNLABELLED The relation of hemophilia A with thrombophilia V Leiden is extremely rare in the literature. Furthermore, hemophiliac patients have an increased risk of severe life-threatening hemorrhage, blood transfusions, and therefore hepatitis transmission, mainly hepatitis C (HCV). AIMS AND METHODS We present a 54-year-old male with a 5-year history of decompensated liver cirrhosis on the g...

Purpose. To describe a patient with two episodes of deep venous thrombosis and factor V Leiden mutation who presented with central retinal vein occlusion (CRVO) despite prophylactic use of warfarin sodium (Coumadin). Methods. A case report of a 44-year-old woman with a history of recurrent deep venous thrombosis and Factor V Leiden mutation was placed on lifelong prophylactic therapy with warfa...