Inherited Disorders of Hemostasis in Dogs and Cats

James W. Barr, Maureen McMichael

Research output: Contribution to journalReview articlepeer-review


Inherited disorders of hemostasis encompass abnormalities in primary hemostasis, coagulation, and fibrinolysis resulting from genetic mutations. There is significant variation in the phenotype expressed ranging from life limiting to the absence of overt clinical signs. Von Willebrand disease is the most common primary hemostatic disorder in dogs, and hemophilia A is the most common coagulation factor disorder. The diagnosis of inherited bleeding disorders is made by functional and/or quantitative evaluation. Genetic testing has added to the knowledge base, allowing prevention through targeted breeding. Avoidance of trauma and injury is paramount in the prevention of bleeding in animals diagnosed with inherited hemostatic disorders. Current therapeutic options include platelet transfusions, broad replacement of coagulation factors (e.g., plasma), targeted factor replacement (e.g., cryoprecipitate), antifibrinolytic agents and specific factor replacement, and treatment of the symptoms (i.e., bleeding) with blood transfusions.

Original languageEnglish (US)
Pages (from-to)53-58
Number of pages6
JournalTopics in Companion Animal Medicine
Issue number2
StatePublished - May 2012


  • Coagulation
  • Hemophilia
  • Hemostasis
  • Von Willebrand disease

ASJC Scopus subject areas

  • Small Animals


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