Aortic Thromboembolism in Dogs
Aortic Thromboembolism is a high-severity cardiac condition that can affect dogs of all ages and breeds. Aortic thromboembolism (ATE) occurs when a blood clot lodges at the aortic trifurcation, obstructing blood flow to the hindlimbs. While more common in cats, it occurs in dogs with underlying cardiac or hypercoagulable disease, causing acute hindlimb paralysis. It is documented across 3 breeds, though prevalence and severity can differ significantly between them. It typically becomes apparent at 7-12 years. Early signs to watch for include sudden hindlimb paralysis or paresis, cold and pale hindlimbs, pain, and absence of femoral pulses. When treatment is required, costs are estimated at £2,000-£6,000 depending on severity, location, and the specific intervention needed. This page covers symptoms, treatment options, and preventive steps — along with breed-specific information where available.
Signs & Symptoms
The following symptoms are commonly associated with Aortic Thromboembolism in dogs. If your dog displays several of these signs, consult your vet promptly — early diagnosis typically leads to better outcomes.
- Sudden hindlimb paralysis or paresis
- Cold and pale hindlimbs
- Pain
- Absence of femoral pulses
- Distress
Treatment Overview
Emergency treatment with anticoagulants (heparin, clopidogrel), analgesia, and supportive care. Thrombolytics (tissue plasminogen activator) can be used but carry haemorrhage risk. Prognosis is guarded; reoccurrence is common.
Typical onset: 7-12 years
Prevention & Screening
While not all cases of Aortic Thromboembolism can be prevented, the following steps reduce risk or enable earlier intervention:
- Anticoagulation therapy in high-risk cardiac patients
- Early treatment of underlying cardiac disease
Estimated Treatment Cost
Treatment for Aortic Thromboembolism is estimated at £2,000-£6,000, depending on severity, the specific intervention required, and your location. Costs may be higher for surgical procedures or ongoing management. Comprehensive pet insurance covering this condition is strongly recommended.
Breeds Affected by Aortic Thromboembolism
The following 2 breeds are documented as being susceptible to Aortic Thromboembolism. Click any breed to view breed-specific information about this condition, including prevalence and recommended screening.
Looking for more information? Browse all dog health conditions or explore the health guides for in-depth breed care advice.