Canine Coagulopathy Study Guide

Overview and Clinical Importance

Coagulopathies represent a significant category of bleeding disorders in dogs, encompassing both congenital (inherited) and acquired conditions that impair normal hemostasis. Understanding these disorders is essential for the NAVLE, as they present commonly in clinical practice and require prompt recognition and appropriate management.

The clinical presentation varies depending on whether the defect involves primary or secondary hemostasis. Primary hemostatic defects (platelet disorders, von Willebrand disease) typically cause petechiae, ecchymoses, and mucosal bleeding. Secondary hemostatic defects (coagulation factor deficiencies) characteristically cause deep tissue hemorrhage, hemarthrosis, and delayed bleeding after trauma or surgery.

Hemostasis Physiology Review

Normal hemostasis involves a coordinated sequence of events that control bleeding while preventing inappropriate thrombosis. This process is traditionally divided into primary hemostasis (formation of the platelet plug) and secondary hemostasis (coagulation cascade activation and fibrin formation).