Population of Study
Our study is a retrospective, observational
study of 1,362 patients consecutively referred
for SVT between January 1985 and January
2012. Patients were aged from 6 to 93 years
(mean age 49 ± 19 years, median 50 years).
Most of them were women (60%). There was
no preexcitation syndrome on electrocardiogram
(ECG) and patients with a masked preexcitation
syndrome in sinus rhythm but with anterograde
conduction over an accessory pathway (AP) were
excluded.