ABSTRACT Background Left-to-right shunting via the foramen ovale is a potential cause of paradoxical embolism. The presence of patent foramen ovale in more than 40% of patients with idiopathic ischemic stroke has led to deeper investigation of the impact of its closure on decreasing stroke recurrence rates. This study describes 20 years of experience with percutaneous patent foramen ovale occlusion performed by a single operator. Methods This sample comprised 527 patients with ischemic stroke submitted to percutaneous occlusion of patent […]