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Background  Patients with a patent foramen ovale (PFO) who suffered from stroke, TIA or peripheral paradoxical embolism are at substantial risk for recurrent neurologic events and in need for secondary prevention. Interventional closure of PFO has been performed for over 20 years. Numerous devices have been developed and used for treatment. We investigated PFO closure with the third generation Occlutech Figulla ®  Flex II Occluder device.    Methods  Between 2012 and 2015 57 patients (mean age 47.3 ± 1.5 years) who had suffered from a thromboembolic event of unknown cause underwent transcatheter PFO closure with the Occlutech Figulla ®  Flex II Occluder at our department. 68.4 % of all patients had suffered from cryptogenic stroke, while TIA had occurred in 28.1 %. Almost all patients were diagnosed with an atrial septum aneurysm (90.9 %) and a severe right-to-left shunt grade 3: >20 microbubbles (92.0 %). Follow-up was done 6 months post intervention by clinical examination and transesophageal contrast echocardiography.    Results  No major periprocedural or in-hospital complication occurred. Closure was sufficient with no residual right-to-left shunt in 94.4 % of all patients at 6 months post implantation and only minimal residual shunt in three cases. There were no thrombotic formations associated to the occluder device. Atrial fibrillation occurred in one patient and a recurrent cerebral ischemic event was seen in one patient, who suffered from another TIA.    Conclusions  The Occlutech Figulla ®  Flex II Occluder device and its delivery system is safe and provides sufficient closure of PFO in patients who suffered from cryptogenic stroke, TIA or paradoxical peripheral embolism.

Mid-term results of interventional closure of patent foramen ovale with the Occlutech Figulla® Flex II Occluder