Which clinical history findings are characteristic of pediatric factor VII deficiency?

Updated: Jun 22, 2021
  • Author: Helge Dirk Hartung, MD; Chief Editor: Hassan M Yaish, MD  more...
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Answer

Most severe cases of factor VII (FVII) deficiency are diagnosed during childhood, often during the first 6 months of life. In infancy, the most common bleeds occur in the GI tract or CNS, accounting for 60-70% of bleeds in this age group. Spontaneous hemarthrosis also presents more frequently in children younger than 5 years (occurring in 20% of patients with factor VII deficiency). These children usually have factor VII levels of more than 2%.

The most common bleeding manifestations involve easy bruising and mucosal bleeding, particularly epistaxis or oral mucosal bleeding. Women are over represented among symptomatic patients because of menorrhagia (as high as 60%). Postoperative bleeding is also common, reported in association with 30% of surgical procedures, including procedures for which replacement therapy was administered.

Thrombosis in inherited factor VII deficiency has been reported; most, but not all, cases are associated with the administration of factor VII replacement therapy and/or surgical procedures.


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