Patent ductus venosus(PDV)
Also known as: Persistent ductus venosus · Intrahepatic portosystemic shunt · IHPSS · Angeborener portosystemischer Shunt · Persistierender Ductus venosus
Overview
What it is
Patent ductus venosus is a congenital defect of the circulatory and liver systems where a natural blood vessel that bypasses the liver during fetal development fails to close after birth. Because this vessel remains open, blood from the digestive tract bypasses the liver's filtration system, allowing toxins to circulate directly to the brain and other organs. This lack of filtration can lead to a state of self-poisoning known as hepatic encephalopathy.
How it presents
Symptoms typically become noticeable within the first year of life, often worsening shortly after the dog eats. Owners may observe stunted growth, vomiting, and neurological signs such as disorientation, head pressing, or seizures.
Treatment
The condition can be managed long-term with a specialized diet and medication, though surgical closure of the vessel is often recommended as a more permanent solution. Surgical treatment is highly specialized and typically costs between 3,000 and 8,000 EUR.
How it's tested
Doppler-Sonographie des Abdomens(Doppler-US)
Primary testUltrasoundDie Doppler-Sonographie des Abdomens ermöglicht die direkte Darstellung des abnormalen Blutflusses durch den persistierenden Ductus venosus zur Diagnose eines portosystemischen Shunts.
Issuing body: vet
Result scheme: Cardiac-OFA
Affected breeds
Treatment cost
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.
Frequently asked
What is Patent ductus venosus?
Patent ductus venosus is a congenital defect of the circulatory and liver systems where a natural blood vessel that bypasses the liver during fetal development fails to close after birth. Because this vessel remains open, blood from the digestive tract bypasses the liver's filtration system, allowing toxins to circulate directly to the brain and other organs. This lack of filtration can lead to a state of self-poisoning known as hepatic encephalopathy.
How is Patent ductus venosus tested?
Tests currently in our database: Doppler-Sonographie des Abdomens.
Which breeds are most affected?
This condition isn't tied to a specific breed in our database.