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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2011, Vol. 20 
