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Purpose : After repair of tetralogy of Fallot(TOF), ventricular arrhythmia and sudden death remain as serious late complications which are due to right ventricular systolic and diastolic overloading, exposure to hypoxia and surgical scar. Among the various methods for predicting the risk of such complications, we evaluated signal average ECG(SAECG), QRS duration, QT and JT dispersion, cardiothoracic(CT) ratio, age at... |
