Key result
Two-week Holter monitoring detects ~276% more atrial tachyarrhythmia recurrences than 24-hour monitoring.
Why the study?
Patients experience few subjective symptoms after catheter ablation for AF, potentially causing underdiagnosis of recurrence with conventional 24-h Holter monitoring.
Does 2-week Holter monitoring improve the detection of atrial tachyarrhythmia recurrence compared to 24-hour Holter monitoring in patients with atrial fibrillation after initial catheter ablation?
Cohort (n=755)
No
Does 2-week Holter monitoring improve the detection of atrial tachyarrhythmia recurrence compared to 24-hour Holter monitoring in patients with atrial fibrillation after initial catheter ablation?
Absolute Event Rate: 25.2% vs 6.7%
p-value: p=< 0.001
Two-week Holter monitoring significantly increases the detection rate of atrial tachyarrhythmia recurrence after atrial fibrillation ablation compared to standard 24-hour monitoring, particularly for asymptomatic recurrences.
No takes yet. Share an insight, caveat, or question.
Longer Holter may improve post-ablation AT detection; extends observational data but leaves optimal strategy and outcomes open.
Naganawa et al. (2025) conducted a cohort in Atrial fibrillation (n=755). 2-week Holter monitoring vs. 24-hour Holter monitoring was evaluated on Detection of atrial tachyarrhythmia recurrence (lasting > 30 s beyond a 3-month blanking period) (p=< 0.001). Two-week Holter monitoring detected significantly more atrial tachyarrhythmia recurrences over 2 years compared to 24-hour monitoring (25.2% vs 6.7%, p<0.001).
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