Arrhythmias & electrophysiology

Impact of Catheter Ablation on Cognitive Function in Atrial Fibrillation: A Randomized Control Trial

JACC Clin ElectrophysiolPublished Randomised controlled trial

Authors' conclusion

POCD was observed following AF ablation. However, this was transient with complete recovery at 12-month follow-up.

Study context

Population
Patients with symptomatic atrial fibrillation (AF) who failed at least 1 antiarrhythmic drug96 completed
Participants
100 patients
Comparison
AF catheter ablation vs ongoing medical therapy
Primary endpoint
Persistent new cognitive dysfunction (6 cognitive tests)
Follow-up
12 months
Methodological detailsprospective
  • Prospective

Primary result

As reported in the abstract

New cognitive dysfunction

P = NS

Further findings

OutcomeAblationMedicalP value
New cognitive dysfunction · 3 months14%— not stated in the abstractP = 0.03
New cognitive dysfunction · 6 months4%— not stated in the abstractP = NS
Significant improvement in cognitive scores · 12 months14%0 eventsP = 0.007

— not stated in the abstract

Predictor of postoperative cognitive dysfunction (POCD)

Ablation time an independent predictor of POCD
P = 0.03

Original publication

Impact of Catheter Ablation on Cognitive Function in Atrial Fibrillation: A Randomized Control Trial. JACC Clin Electrophysiol. Published 24 May 2023. doi:10.1016/j.jacep.2023.02.020

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