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Indian Journal of Pathology and Microbiology
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Year : 2000  |  Volume : 43  |  Issue : 3  |  Page : 319-23

Prothrombotic factors in nephrotic syndrome.


Department of Haematology, All India Institute of Medical Science, New Delhi

Correspondence Address:
R Saxena
Department of Haematology, All India Institute of Medical Science, New Delhi

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Source of Support: None, Conflict of Interest: None


PMID: 11218679

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Nephrotic syndrome is a hypercoagulable state with variable prevalence of clinical thrombosis. The role of platelet aggregation, fibrinogen and antithrombin III and protein S levels in the pathogenesis of hypercoagulable state in these patients is controversial. Since no study on Indians is available, the clinical and laboratory profile of 22 patients of nephrotic syndrome (age 18-35 years with an MF ratio of 4:3), have been studied. The coagulation profile revealed a prolonged APTT in 12 patients (54.5%), and a prolonged TT in four (18.1%). In the rest APTT and TT were normal. PT was raised in two patients. Fibrinogen, an acute phase reactant was raised in five patients (22.7%). Antithrombin III levels were reduced in 19 patients (86.4%), normal in one and raised in two patients. Free Protein S levels were high in 12(54.5%), normal in seven and decreased in three patients. Platelet aggregation with adrenaline and adenosine diphosphate was raised in 6 patients. Ultrasonographically detected deep vein thrombosis was seen in one patient only (4.5%) who had ATIII levels of 48%. This low incidence can be explained by elevated protein S levels which was found to be raised in 12(54.5%) cases, protein S being an anticoagulant factor. This low level of clinical thrombosis in Indian patients of nephrotic syndrome may be an ethnic variable factor. It is thus concluded that although patients with nephrotic syndrome have a hypercoagulable state, clinical thrombosis is rarely seen in Indian patients with nephrotic syndrome.


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