Patent Ductus Arteriosis
Common names or abbreviations:
Description or definition:
ductus arteriosis (PDA) is the second most common congenital heart defect
of dogs. The ductus arteriosis is a blood vessel that connects the
aorta and the pulmonary artery in a fetus. Shortly after birth this
blood vessel should close. When the ductus arteriosis is
“patent,” this means it remains open after birth. This
“leak” causes the left ventricle to have to work harder to circulate
the blood to the circulatory system. If the condition is caught
early and treated with closure of the PDA most puppies with this condition
can live a normal life.
murmur, breathing difficulties, coughing, exercise intolerance, lethargy,
a bluish cast to the normally pink mucous membranes or cyanosis.
Sometimes the earliest physical sign is weakness or even collapse of the
hindquarters during exercise.
experienced veterinarians can diagnose a heart murmur simply by listening
with a stethoscope. Since other birth defects also cause heart
murmurs, the diagnosis should be confirmed with radiographs (X rays),
electrocardiograph (EKG/ECG), and echocardiogram with doppler (cardiac
here for OFA heart clinics in your area: http://www.offa.org/clinics.html
conventional treatment is an operation done shortly after diagnosis. The
PDA is closed with surgical suture or using special catheterization
more information on heart disease, or if you are concerned about whether
your dog has a heart condition, contact your veterinarian.
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