“…Device thrombosis is a rare but serious complication after interventional PFO or ASD closure which may result in recurrent thromboembolism and stroke. It has been observed in historic and contemporary devices of virtually all manufacturers including the CardioSEAL/STARFlex ® devices, 9,10 the Amplatzer™ occluder family, 11,12 the Nit-Occlud ® PFO occluder, 13 the Occlutech occluder family 14,15 as well as the Gore ® Helex septal occluder, 10 Cardioform septal occluder 6,7 and the recently introduced Cardioform ASD occluder. 16 To date, there is insufficient evidence on the best follow-up management and antithrombotic therapy regimen after PFO closure.…”