Managing von Willebrand disease in dogs — the most common inherited bleeding disorder in canines.
Von Willebrand disease causes welfare impairment primarily through bleeding episodes and the anxiety associated with anticipated surgical risk. Mild Type I disease may only manifest during surgical procedures or after significant trauma, but Type III disease causes spontaneous haemorrhage from mucous membranes, joints, and internal organs that can be severe and life-threatening.
The welfare impact of bleeding episodes is significant — joint haemorrhage causes acute pain, lameness, and joint damage. Nasal bleeding (epistaxis) is frightening and exhausting. Gastrointestinal bleeding causes anaemia, weakness, and malaise. Even minor cuts require careful management and may need veterinary intervention.
Surgical welfare requires careful pre-operative planning. Desmopressin (DDAVP) administered before surgery temporarily elevates vWF levels, reducing surgical bleeding risk. Fresh frozen plasma or cryoprecipitate provide vWF for emergency management of severe bleeding. Surgical technique modifications reduce haemorrhage risk.