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Single-center experience: use of recombinant factor VIIa for acute life-threatening bleeding in children without congenital hemorrhagic disorder.

Coagulopathy is an important cause of mortality in critically ill children. Traditional therapies to correct coagulopathy lead to great time delays and cause fluid overload in patients. The authors report the effectiveness and safety of the activated recombinant factor VII (rFVIIa) administration in a series of 13 nonhemophiliac children with acute, life-threatening bleeding. In this retrospective study, the records of the patients who were not diagnosed with congenital hemorrhagic disorder and were administered rFVIIa due to any other reason in Ege University Faculty of Medicine, Department of Pediatrics, between February 2002 and February 2007 were reviewed retrospectively. Thirteen nonhemophiliac patients with acute life-threatening bleeding and ages ranging from 2 days to 15 years received rFVIIa over a 5-year period. Three patients were diagnosed with hemaphagocytic lymphohistiocytosis, 4 with prematurity, sepsis, and disseminated intravascular coagulation (DIC), 5 with sepsis, multiple organ dysfunction syndrome, and DIC, and 1 with acute liver failure. Severe bleeding resulted from pulmonary (n = 3), lower gastrointestinal system (n = 2), esophagus varices (n = 1), pulmonary and gastrointestinal system (n = 4), pulmonary, gastrointestinal system, and intracranial hemorrhage (n = 1), and gastrointestinal system and intracranial hemorrhage (n = 2). Median frequency of rFVIIa administration was 3 per patient (range 2-15) and median dose of rFVIIa was 90 microg/kg, ranging from 60 to 135 microg/kg each administration. All of the patients were given fresh frozen plasma and if necessary platelet transfusion (n = 10) or fibrinogen concentrate (n = 3) before administration of rFVIIa. In 6 patients, lack of success to control bleeding by conventional methods was the only cause to start rFVIIa. In 7 patients, the need for volume restriction was also a significant contributing factor in deciding to start rFVIIa. Median PT was 32.9 s (range: 19-65) before rFVIIa administration and it was decreased to 11.6 s (range: 10.7-12.8), 2-3 h after rFVIIa infusion. Bleeding was stopped completely in 10 patients at least for 24 h and decreased in 3 patients 30-45 min after rFVIIa administration. Two patients had thrombotic complications attributed to rFVIIa administration. No other complication was observed in the other patients. In this retrospective study, rFVIIa was found to be effective at controlling severe hemorrhagic symptoms of different etiologies in children without congenital hemorrhagic disorder. In addition to the rapid control of bleeding, administration of this agent improved fluid balance and led to a reduction in blood product requirements in critically ill children. However, survival was still poor (23%), and 2/13 (15.4%) patients developed venous and arterial thrombosis within 3 h of treatment. The authors emphasize that in acquired, acute life-threatening bleeding, simultaneous administration of rFVIIa with conventional treatment may contribute to patient survival. However, the risk of thromboembolism should be considered before this treatment is given.

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