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A new scoring system to predict the risk of late recurrence in extended follow-up after atrial fibrillation catheter

Taner Ulus¹, Ahmet Şekip Ahmadi¹, Ertuğrul Çolak²

¹Department of Cardiology Eskişehir Osmangazi University Eskişehir Turkey.

Journal of Arrhythmia

|March 25, 2025

Summary

This summary is machine-generated.

A new APCEL risk score effectively predicts late recurrence after atrial fibrillation (AF) ablation. This score aids in identifying high-risk patients for prolonged follow-up post-procedure.

Keywords:

atrial fibrillation catheter ablation follow‐up recurrence scoring system

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Area of Science:

Cardiology
Electrophysiology
Medical Informatics

Background:

Existing risk scores for atrial fibrillation (AF) recurrence after catheter ablation vary significantly.
Inconsistencies exist in follow-up duration, pre-procedural AF time, ablation energy sources, and left atrial diameter cut-offs.
A need exists for a refined risk score for predicting long-term recurrence after AF ablation.

Purpose of the Study:

To develop and validate a novel risk score for predicting late recurrence of atrial fibrillation (AF) after catheter ablation.
To identify independent predictors of late recurrence in a cohort of patients undergoing AF ablation.
To compare the predictive performance of the new risk score against existing scores.

Main Methods:

A cohort of 206 patients undergoing catheter ablation for paroxysmal or persistent AF was analyzed.
Independent predictors of late recurrence were identified at a median follow-up of 40 months.
The APCEL risk score was developed based on identified predictors and its performance was evaluated.

Main Results:

Independent predictors of late recurrence included: pre-ablation AF duration >19 months, persistent AF, early recurrence, COPD, and LA volume index >31 mL/m².
The APCEL risk score demonstrated strong predictive performance for late recurrence at 6, 12, 24, and 36 months post-ablation (AUCs ranging from 0.798 to 0.940).
The score assigns points based on specific risk factors: Early recurrence (3 points), AF duration >19 months (2 points), and other factors (1 point each).

Conclusions:

The APCEL score, calculated post-blanking period, effectively identifies patients at high risk for late recurrence after AF ablation.
This tool facilitates risk stratification for extended patient follow-up.
The developed score offers improved prediction accuracy for long-term outcomes in AF ablation patients.