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Lupus anticoagulant...
Lupus anticoagulants in two children-bleeding due to nonphospholipid-dependent antiprothrombin antibodies
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- Knobe, Karin (author)
- Lund University,Lunds universitet,Enheten för pediatrisk hematologi,Forskargrupper vid Lunds universitet,Paediatric Hematologic Research Group,Lund University Research Groups
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- Tedgård, Ulf (author)
- Lund University,Lunds universitet,Enheten för pediatrisk hematologi,Forskargrupper vid Lunds universitet,Paediatric Hematologic Research Group,Lund University Research Groups
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Ek, Torben (author)
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- Sandström, Per-Erik (author)
- Umeå universitet,Pediatrik
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- Hillarp, Andreas (author)
- Lund University,Lunds universitet,Klinisk kemi, Malmö,Forskargrupper vid Lunds universitet,Clinical Chemistry, Malmö,Lund University Research Groups
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(creator_code:org_t)
- 2012-04-19
- 2012
- English.
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In: European Journal of Pediatrics. - : Springer Science and Business Media LLC. - 0340-6199 .- 1432-1076. ; 171:9, s. 1383-1387
- Related links:
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https://lup.lub.lu.s...
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https://portal.resea... (primary) (free)
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http://www.ncbi.nlm....
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Subject headings
Close
- We describe two children with significant bleeding: one with multiple ecchymoses and the other with scrotal bleeding. In both patients, the activated partial thromboplastin time (APTT) was prolonged, with positivity for lupus anticoagulants (LA). However, the Owren prothrombin time (PT), usually insensitive for LA, was also prolonged. The presence of LA is associated with diverse clinical manifestations, with most patients being asymptomatic while others present venous or arterial thrombosis. Bleeding in conjunction with LA is rare and it is unusual to see prolongation of the Owren PT assay due to LA. An extended laboratory investigation of one of the patient's plasma revealed not only LA but also a specific nonphospholipid-dependent antiprothrombin antibody causing an acquired hypoprothrombinemia. Conclusion: It is likely that the low prothrombin activity and not the LA caused the bleeding. The bleeding signs and symptoms in both patients subsided when the PT was normalized, although the prolonged APTT and the LA remained.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
Keyword
- Coagulation
- Lupus anticoagulants
- Antiprothrombin antibodies
- Bleeding
- Children
Publication and Content Type
- ref (subject category)
- art (subject category)
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