3.3.2 | Procedure-related complications
Of all patients underwent cerebral MRI before and after ablation, four (12.5%) developed new postprocedural SCLs (Table 4). These cerebral lesions were negligible changes. Severe coronary artery spasm or incidental ST-segment elevation was not detected during ablation. No serious complications such as acute kidney injury, severe haemolysis, death, pericardial effusion/cardiac tamponade, thromboembolic events, esophageal injury, myocardial infarction, pulmonary vein stenosis, or phrenic nerve palsy related to the PFA procedure were reported. In our series, pulsed-field applications induced vagal response in 25 sites of 22 patients ( 68.8%), including the left superior pulmonary vein (n=19), right superior pulmonary vein (n=3), and left inferior pulmonary vein (n=3).