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  • Title: Hemostasis and thromboembolism in children with nephrotic syndrome: differences from adults.
    Author: Mehls O, Andrassy K, Koderisch J, Herzog U, Ritz E.
    Journal: J Pediatr; 1987 Jun; 110(6):862-7. PubMed ID: 3585601.
    Abstract:
    Eleven of 204 children with nephrotic syndrome had thrombotic complications: arterial thrombosis in five, venous thrombosis in four, and pulmonary embolism in two. Fifty-one episodes of thromboembolism were recognized in 116 adult patients with nephrotic syndrome. Despite the lower incidence, thromboembolic complications tended to be more severe in children. In vitro indices of hemostasis and clinical evidence of thromboembolic complications were compared in children and adults. Antithrombin III concentrations and activities were abnormal in seven of 10 children, but in only two of 32 adults. In both groups, alpha 2-macroglobulin was elevated, but more markedly so in children. No evidence for circulating granulocyte-derived proteases (elastase/antielastase complexes) was noted in either group. Protein C was significantly elevated in children with nephrotic syndrome, but was normal in adults. Children also differed from adults with nephrotic syndrome in laboratory evidence of subthreshold disseminated intravascular coagulation (i.e., elevated soluble fibrinogen monomeric complexes and fibrin degradation products) and indicators of in vivo platelet activation (elevated beta-thromboglobulin). The more severe coagulation abnormalities in children may be linked to the more pronounced hypoalbuminemia.
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