“…3 Although excellent results have been reported with various devices over the years, there have been rare instances of complications such as residual leaks, erosion, perforation, tamponade, distal migration, deformity of the device and thrombus formation. 1,[4][5][6] The estimated incidence of long-term adverse events in the USA alone with the atrial septal occluder is approximately 0.1%. 5 In a large review of 3,535 patients who underwent percutaneous ASD or PFO closure, 2.8% of patients had minor complications, whereas serious complications were reported in only 0.3% of patients.…”