Abstract:Objective To explore the significance of QT interval and QT dispersion changes in spontaneous type 1 Brugada waves in patients. Methods Fifteen patients with Spontaneous type 1 Brugada waves were directly examined with 12 lead electrocardiogram,QT interval,QT dispersion was measured, type I Brugada waves were compared with non-Brugada waves and Healthy control group. Results The QT interval and QT dispersion in spontaneous type 1 Brugada waves are significant difference to non- Brugada waves, P <0.05; compared with Healthy control group(15 cases)of the same age,each index is significant difference,P <0.05. Conclusion In patients showed in spontaneous type 1 Brugada waves the QT interval,QT dispersion probably are significantly higher than non-Brugada waves and the control group,patients showed spontaneous type 1 Brugada waves is not only the early repolarization abnormalities,but also the repolarization time and its dispersion increased significantly and increased the risk of sudden death.
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