Results: Stroke was noted in 38 patients with a prevalence of 2.8%. Patients with stroke were older
(62 ± 12 years vs 49 ± 19 years; P < 0.0001). Heart disease (34% vs 10%; P < 0.0001) and AF history (10.5%
vs 2%; P < 0.001) were more frequent. Male gender was as frequent in patients with and without stroke
(45% vs 39.5%; NS). SVT mechanism was similar: AV reentrant tachycardia over concealed AP was 10.5%
in patients with stroke and 18.5% in other patients (NS). Atrioventricular node reentrant tachycardias
represent other mechanisms. After 2.6 ± 2.5 years, SVT ablation was performed less frequently in patients
with stroke (37% vs 63%; P < 0.001); three patients without previous stroke presented a stroke. AF and
cardiovascular death were more frequent in patients with stroke (21% vs 4.6%; P < 0.000), (8% vs 2%;
P < 0.008). Note that 7.6% of patients treated with ablation and 6% of patients without ablation had an
event (stroke, AF, death; NS).