Patent Ductus Arteriosus (PDA) in Dogs
Patent Ductus Arteriosus (PDA) is a high-severity cardiac condition that can affect dogs of all ages and breeds. PDA occurs when the ductus arteriosus, a blood vessel that normally closes at birth, remains open. This causes abnormal blood circulation between the aorta and pulmonary artery, overloading the heart and leading to congestive heart failure if untreated. It is documented across 6 breeds, though prevalence and severity can differ significantly between them. It typically becomes apparent at Birth-6 months. Early signs to watch for include continuous heart murmur, exercise intolerance, stunted growth, and breathing difficulties. When treatment is required, costs are estimated at £3,000-£6,000 depending on severity, location, and the specific intervention needed. Patent Ductus Arteriosus (PDA) has a hereditary component, so health-screening certificates from the breeder are strongly recommended for predisposed breeds. 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 Patent Ductus Arteriosus (PDA) in dogs. If your dog displays several of these signs, consult your vet promptly — early diagnosis typically leads to better outcomes.
- Continuous heart murmur
- Exercise intolerance
- Stunted growth
- Breathing difficulties
- Left-sided heart enlargement on X-ray
Treatment Overview
Surgical ligation or catheter-based occlusion of the ductus is highly effective when performed early. Without treatment, most dogs develop congestive heart failure within the first year.
Typical onset: Birth-6 months
Prevention & Screening
While not all cases of Patent Ductus Arteriosus (PDA) can be prevented, the following steps reduce risk or enable earlier intervention:
- Do not breed affected dogs
- Cardiac screening of breeding animals
Estimated Treatment Cost
Treatment for Patent Ductus Arteriosus (PDA) is estimated at £3,000-£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 hereditary conditions is strongly recommended.
Breeds Affected by Patent Ductus Arteriosus (PDA)
The following 7 breeds are documented as being susceptible to Patent Ductus Arteriosus (PDA). 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.