Figure 2. Flowchart study population.
Overview of the included and excluded patients. This figure shows the selection process of patients undergoing repeat AF ablations from eight centers in the Netherlands (2016-2019; NHR). Out of 2311 patients, 1956 eligible patient were identified after excluding those with no AF (n=2) and those with surgical ablation, prior ablation outside the PVs, or an indication for atrial flutter/tachycardia (n=353). Among eligible patients, 1617 had reconnected pulmonary veins (PVs), 65 had missing PV reconnection data, and a total of 274 patients had all PVs isolated, which were included in the final analyses.
Figure 3. Distribution of individual ablation strategies and number of ablation strategies performed .
A) Visual representation of the percentage of patients who received each specific ablation strategy; B) Pie chart showing the percentage distribution of the number of ablation strategies/combinations performed among all included patients.