TY - GEN ID - cogprints4598 UR - http://cogprints.org/4598/ A1 - Folino, Antonio Franco A1 - Daliento, Luciano Y1 - 2005/10// N2 - Tetralogy of Fallot is the most common cyanotic congenital heart disease, with a good outcome after total surgical correction. In spite of a low perioperative mortality and a good quality of life, late sudden death remains a significant clinical problem, mainly related to episodes of sustained ventricular tachycardia and ventricular fibrillation. Fibro-fatty substitution around infundibular resection, intraventricular septal scar, and patchy myocardial fibrosis, may provide anatomical substrates of abnormal depolarization and repolarization causing reentrant ventricular arrhythmias. Several non-invasive indices based on classical examination such as ECG, signal-averaging ECG, and echocardiography have been proposed to identify patients at high risk of sudden death, with hopeful results. In the last years other more sophisticated invasive and non-invasive tools, such as heart rate variability, electroanatomic mapping and cardiac magnetic resonance added a relevant contribution to risk stratification. Even if each method per se is affected by some limitations, a comprehensive multifactorial clinical and investigative examination can provide an accurate risk evaluation for every patient PB - Indian Pacing and Electrophysiology Group KW - Tetralogy of Fallot KW - surgery; ventricular arrhythmias; risk stratification TI - Arrhythmias After Tetralogy of Fallot Repair SP - 312 AV - public EP - 324 ER -