Patent ductus arteriosus and pulmonic stenosis in a dog: Treatment using an Amplatz canine duct occluder device with concurrent balloon valvuloplasty.

A 6-month-old, female intact terrier mixed breed puppy was presented to the Atlantic Veterinary College cardiology service for evaluation of a subclinical heart murmur. Echocardiography identified severe pulmonic stenosis (PS) and a concurrent left-to-right shunting patent ductus arteriosus (PDA). Correction via minimally invasive transcatheter techniques, including placement of an Amplatz canine duct occluder device and balloon valvuloplasty, repaired the PDA and PS, respectively. The patient recovered uneventfully and continues to show complete PDA occlusion and significant improvement in severity of PS with no clinical signs. This dog had 2 potentially life-threatening congenital heart conditions that were corrected via minimally invasive therapeutic techniques and now has excellent expected long-term prognosis as a result.