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Signs of thrombin generation in pediatric cardiac catheterization with unfractionated heparin bolus or subcutaneous low molecular weight heparin for antithrombotic cover.

Abstract：

INTRODUCTION:Thrombosis is one of the most frequent adverse events after cardiac catheterization, which can be reduced by anticoagulation with unfractionated heparin (UFH) in both children and adults. Low molecular weight heparin (LMWH) might possibly offer advantages. Laboratory signs of thrombin generation during pediatric cardiac catheterization, with unfractionated heparin (UFH) bolus or subcutaneous LMWH for thrombosis prophylaxis, were determined in a first step to investigate the potential of LMWH for antithrombotic cover. MATERIALS AND METHODS:Signs of thrombin generation (D-dimer and F1+2), anti-Xa activity and activated clotting time (ACT) were measured in 65 patients with congenital heart disease. A total of 40 patients were treated with a UFH bolus of 100 IU/kg bodyweight and, in 25 children, enoxaparin was subcutaneously administered at a dosage of 1/1.6 mg/kg bodyweight. RESULTS:The dose to plasma activity of enoxaparin was more consistent than in the UFH group. Only a slight elevation of F1+2 was found in some patients, which was a little higher in the enoxaparin group, but no difference of incidence of increased F1+2 generation was detected between the two groups. D-dimer was elevated in three children after UFH bolus application, but no such effect was observed in any child after LMWH administration. CONCLUSIONS:Application of LMWH was equally efficacious during pediatric cardiac catheterization than UFH bolus administration, as determined by plasma levels and markers of clotting activation. In contrast to UFH bolus, no further monitoring was necessary after the application of LMWH during cardiac catheterization due to a consistent dose to plasma activity.

journal_name

Thromb Res

journal_title

Thrombosis research

authors

Roschitz B,Beitzke A,Gamillscheg A,Sudi K,Koestenberger M,Leschnik B,Muntean W

doi

10.1016/j.thromres.2003.09.020

subject

Has Abstract

pub_date

2003-01-01 00:00:00

pages

335-41

issue

eissn

0049-3848

issn

1879-2472

pii

S0049384803005048

journal_volume

111

pub_type

临床试验,杂志文章

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Signs of thrombin generation in pediatric cardiac catheterization with unfractionated heparin bolus or subcutaneous low molecular weight heparin for antithrombotic cover.