A 78 years old patient underwent a His ablation for drug-resistant paroxysmal atrial fibrillation.
He also presents with documented VTs and left ventricular ejection fraction under 40% with symptomatic heart failure which led to ICD implant
On this slide, the ventricular lead detects noise analyzed as spontaneous ventricular activity so that the patient is not paced anymore which leads to repetitive dizziness
The ventricular channel detects rapid and irregular signals analyzed by teh ICD as ventricular fibrillation
50 Hz sensed by the atrial channel in a ICD