Clotting factor level is not a good predictor of bleeding in carriers of haemophilia A and B.

Olsson, Anna (author)

Hellgren, Margareta, 1947 (author): Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för obstetrik och gynekologi,Institute of Clinical Sciences, Department of Obstetrics and Gynecology

Berntorp, Erik (author): Lund University,Lunds universitet,Klinisk koagulationsmedicin, Malmö,Forskargrupper vid Lunds universitet,Clinical Coagulation, Malmö,Lund University Research Groups

Ljung, Rolf (author): Lund University,Lunds universitet,Pediatrik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Paediatrics (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine

Baghaei, Fariba (author)

(creator_code:org_t)

2014
2014
English.
In: Blood coagulation & fibrinolysis : an international journal in haemostasis and thrombosis. - 1473-5733. ; 25:5, s. 471-475

Related links:: http://www.ncbi.nlm....; show more...; http://dx.doi.org/10...; https://gup.ub.gu.se...; https://doi.org/10.1...; https://lup.lub.lu.s...; show less...

Abstract Subject headings

Carriers of haemophilia are known to have a wide range of clotting factor levels and bleeding symptoms. This study aimed at investigating whether carriers of severe and moderate haemophilia had an increased bleeding tendency, compared with a control group, using a condensed version of a bleeding assessment tool developed by the Molecular and Clinical Markers for the Diagnosis and Management of Type 1 VWD study group (MCMDM-1VWD). One hundred and twenty-six genetically verified carriers of severe and moderate haemophilia and 90 controls were interviewed regarding bleeding symptoms. A bleeding score of at least 4 was considered positive, indicating a significant bleeding tendency. Clotting factor levels were tested in the carriers.Nineteen of the women were carriers of haemophilia B, with a mean factor (F)IX:C level of 0.54 (± 0.27) kIU/l, and 107 were carriers of haemophilia A, with a mean FVIII:C level of 0.74 (± 0.32) kIU/l. The median bleeding score was 2 (-3-12) among carriers and -1 (-3-8) among controls (P<0.001). The bleeding score was weakly correlated to clotting factor levels in carriers of haemophilia A (rs=-0.36, P<0.001). We conclude that the bleeding tendency in our cohort of carriers differed significantly from that in the controls and that clotting factor levels might not be sufficient to predict the bleeding tendency.

By the author/editor: Olsson, Anna; Hellgren, Margar ...; Berntorp, Erik; Ljung, Rolf; Baghaei, Fariba

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Hematology

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