Patent ductus arteriosus (PDA) is a rare clinical finding in adult patients. Considering the increase in cases of PDA discovered incidentally on echocardiograms at young ages, and the life-shortening effect of PDA, it is rare to diagnose PDA in old patients. We report a case of an 80-year-old patient who experienced symptoms of congestive heart failure showed findings suggestive of PDA in echocardiogram and confirmed the diagnosis through a cardiac catheterization and a coronary angiography. After percutaneous occlusion of PDA with an Amplatzer duct occlusion device, symptoms related to congestive heart failure improved.
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