AF and His-bundle ablation
Tracing
Manufacturer Medtronic
Device CRT
Field Management of atrial arrhythmias
N° 26
Patient
69-year-old man implanted with a triple-chamber defibrillator Viva XT CRT-D for valvular cardiomyopathy with permanent AF (no atrial lead implanted) and a narrow QRS; device interrogation performed a few hours after the implant.
Graph and trace
- after the implant, rapidly conducted AF, percentage of biventricular pacing at 0% and fast ventricular response (peak HR around 150, 160 bpm);
The patient underwent bundle of His ablation; device interrogation the day after the ablation procedure; - permanent biventricular pacing (rate responsive function ON); the patient was still lying down in his bed, which explains the absence of heart rate acceleration.
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