Prevalence Survey of Pre-excitation and Wolff-Parkinson-White Syndrome in Adolescents in Beijing Area

Objective:To study the prevalence of pre-excitation and Wolff-Parkinson-White(WPW) syndrome in adolescents in Beijing area.Methods: A total of 19 484 adolescents at the age of(15-20) years from Xicheng district of Beijing and the freshmen from Peking University were enrolled for our survey; 12-lead electrocardiography(ECG) screening was conducted and the diagnosis, classification of pre-excitation, WPW syndrome were recorded. The follow-up study was performed in relevant patients.Results: There were 19 389 qualified ECG obtained, among them, 30(0.15%) patients with ventricular pre-excitation and WPW syndrome identified including 17 male(0.17%) and 13(0.13%) female, the prevalence between male and female was similar(χ~2=0.495, P0.05). There were 6/19389(0.03%) patients with palpitation and 2(0.01%) documented by superventricular tachycardia. There were 16/30(53.33%) patients with type A and 14(46.7%) with type B ventricular pre-excitation, the prevalence between male and female was similar(χ~2=4.693, P0.05). The patients were followed-up at the mean of 2.5(1.5-3) years and no malignant arrhythmia events occurred. Conclusion: In this cohort survey, prevalence of pre-excitation and WPW syndrome is about 0.15% in adolescents from(15-20) years in Beijing area; the prevalence is similar between male and female subjects.