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Hemophilia in a Great Pyrenees
Modern Veterinary Practice
|August 1, 1980
Summary
A Great Pyrenees puppy was diagnosed with hemophilia A, a bleeding disorder. This condition, characterized by low factor VIII activity, was also identified in its dam and a littermate, suggesting a genetic link.
Area of Science:
- Veterinary Medicine
- Canine Genetics
- Hematology
Background:
- Hemophilia A is a rare inherited bleeding disorder caused by deficiency in coagulation factor VIII.
- Genetic mutations leading to hemophilia A can affect various dog breeds, impacting canine health and welfare.
Observation:
- A male Great Pyrenees puppy presented with a soft tissue mass, shoulder hematoma, and gingival bleeding.
- Clinical signs indicated a potential coagulation disorder requiring further investigation.
Findings:
- Coagulation tests revealed prolonged clotting and activated partial prothrombin times.
- Significantly decreased factor VIII activity confirmed the diagnosis of hemophilia A.
- The puppy's dam and a female littermate also exhibited reduced factor VIII activity, indicating probable carrier status.
Implications:
- This case highlights the importance of recognizing hemophilia A in Great Pyrenees dogs.
- Identifying carriers is crucial for genetic counseling and breeding management to prevent the inheritance of this bleeding disorder.
- Understanding the genetic basis of hemophilia A in this breed can aid in developing diagnostic and therapeutic strategies.