Heart, defect (Congenital) in, dogs petMD Patent Ductus Arteriosus is more common in female dogs. Although any breed of dog can be affected by this heart defect, PDA does appear to have a heritable component in smaller breeds of dogs.Heart, defect (Congenital) in, dogs petMD Patent Ductus Arteriosus is more common in female dogs. Although any breed of dog can be affected by this heart defect, PDA does appear to have a heritable component in smaller breeds of dogs. Breeds that are reported to have more problems with this defect include Maltese, Pomeranians, Yorkshire Terriers, Shetland Sheepdogs, Toy Poodles, and. Patent Ductus Arteriosus in, dogs : Learn about Patent Ductus Arteriosus, including how it can affect your dog, and what options are available to manage this type of heart condition. Overview of Patent Ductus Arteriosus (. PDA ) in, dogs, the ductus arteriosus is a blood vessel that connects the two main arteries of the body - the aorta and the pulmonary artery. Patent Ductus Arteriosus: A, heart, defect in, dogs Abstract Patent ductus arteriosus (. PDA ) is the most common congenital heart disease in dogs. It is due to the failure of the ductus arteriosus muscle to constrict, leaving a passageway for blood flow and resulting in eventual left-sided heart disease and/or generalized heart failure. Cvca Cardiac Care for Pets helps to find, evaluate, and treat the condition patent ductus arteriosus in dogs. Visit our website today for more information! In fetal life, blood entering the right heart largely bypasses the nonfunctional lungs through either the foramen ovale or the ductus arteriosus. Exercise restriction is recommended for patients with pulmonary hypertension related to PDA. After the first few weeks of life, medicine won't work as well to close the ductus and surgery may be required. In addition, rapid run-off blood from the aorta via the ductus causes a decreased aortic and arterial diastolic pressure. . The ductus arteriosus is a hole that allows the blood to skip the circulation to the lungs. Siems J: Radiographic Recognition of Common CongenitalCardiac Disorders in the Dog. Failure of the ductus to close is common in premature infants but rare in full-term babies, and the cause is usually not known. If there's no other heart defect, this restores the child's circulation to normal. After surgery or catheter closure, your cardiologist may advise some limitations on your physical activity for a short time even if there's no pulmonary hypertension.