PMID: 6159285Jan 1, 1980Paper

Normal platelet adhesiveness and aggregation in congenital PTA or Hageman factor deficiency

Folia haematologica : internationales Magazin für klinische und morphologische Blutforschung
A GirolamiG Molaro

Abstract

Platelet adhesiveness and aggregation were studied in two patients with congenital factor XI deficiency and in a patient with congenital factor XII deficiency. A normal aggregation pattern was observed in every instance, regardless of the aggregating agent. The same was true for platelet adhesiveness. It is concluded that factor XI and factor XII play no role in platelet aggregation and adhesiveness.

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