Abstract
We present a case of a patient with a transient ischaemic attack (TIA) likely due to paradoxical embolism through a patent foramen ovale (PFO). Her medical history included 2nd-degree heart block Mobitz II, which manifested with recurrent syncopes and was treated with a dual chamber pacemaker. During the interventional PFO closure procedure, we noted entrapment of the atrial pacemaker lead between the right-sided occluder disc and the interatrial septum. We were able to successfully move the lead aside using a 24 mm sizing balloon and subsequently developed the right-sided occluder disc in the correct position. In conclusion, pacemaker-lead entrapment between a PFO occluder disc and the interatrial septum can be prevented using a sizing balloon.
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