Document Detail


Incidence of heparin-induced thrombocytopenia and therapeutic strategies in pediatric cardiac surgery.
MedLine Citation:
PMID:  15620916     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: We identified the incidence of heparin-induced thrombocytopenia and the antiheparin-platelet factor 4 (PF4) antibody in pediatric patients undergoing cardiac surgery and documented the differences in the anticoagulation management for the extracorporeal circulation. METHODS: Between January 2001 and September 2003, 559 cardiac procedures with extracorporeal circulation in 415 patients with congenital heart defects were performed in our institution. Because the development of heparin-induced thrombocytopenia requires previous exposition to heparin, only the 144 patients undergoing a scheduled second procedure on extracorporeal circulation were screened preoperatively. Of these 144 patients, 41 underwent also a third procedure and were screened before each procedure for presence of antiheparin-PF4 antibodies and for clinical signs of heparin-induced thrombocytopenia. RESULTS: The incidence of antiheparin-PF4 antibodies during the study period was 1.4% (2 of 144 patients). Patients with clinically significant heparin-induced thrombocytopenia could not be identified. Outside the study protocol, 2 more patients with antiheparin-PF4 antibodies were found. In these 4 patients, surgery was performed using lepirudin (Schering, Berlin, Germany) instead of the usual heparin management for extracorporeal circulation. Three of these 4 patients had an uneventful procedure and postoperative course. In 1 patient after total cavopulmonary connection, a reoperation was necessary on the seventh postoperative day owing to partial thrombosis of the lateral tunnel. CONCLUSIONS: The incidence of heparin-induced thrombocytopenia and of antiheparin-PF4 antibodies in patients undergoing repeated cardiac surgery is low. In antiheparin-PF4 antibody positive patients, the complete avoidance of heparin can be achieved and may account for an uneventful perioperative course.
Authors:
Andreas Böning; Torsten Morschheuser; Udo Bläse; Jens Scheewe; Michael von der Brelie; Ralf Grabitz; Jochen T Cremer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  79     ISSN:  1552-6259     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2004-12-28     Completed Date:  2005-08-12     Revised Date:  2006-05-25    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  62-5     Citation Subset:  AIM; IM    
Affiliation:
Department of Cardiovascular Surgery, University Hospital Kiel, Hamburg, Germany. aboening@kielheart.uni-kiel.de
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MeSH Terms
Descriptor/Qualifier:
Anticoagulants / adverse effects*,  contraindications,  immunology
Cardiac Surgical Procedures*
Extracorporeal Circulation*
Heart Defects, Congenital / complications,  surgery
Heparin / adverse effects*,  chemistry,  immunology
Hirudins / contraindications
Humans
Incidence
Infant
Kidney Failure, Chronic / complications
Platelet Factor 4 / chemistry,  immunology*
Postoperative Complications / chemically induced*,  epidemiology
Preoperative Care
Recombinant Proteins / contraindications,  therapeutic use
Reoperation
Retrospective Studies
Thrombocytopenia / chemically induced*,  epidemiology
Chemical
Reg. No./Substance:
0/Anticoagulants; 0/Hirudins; 0/Recombinant Proteins; 0/lepirudin; 37270-94-3/Platelet Factor 4; 9005-49-6/Heparin
Comments/Corrections
Comment In:
Ann Thorac Surg. 2006 May;81(5):1944; author reply 1944-5   [PMID:  16631722 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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