Electrophysiological Follow-Up of Tetralogy of Fallot |
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Authors: | B Friedli |
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Affiliation: | Unité de Cardiologie Pédiatrique, H?pital des Enfants, CH-1211 Geneva 14, Switzerland, CH
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Abstract: | Arrhythmias and sudden death are well-recognized complications that occur late after correction of tetralogy of Fallot. This
study, based on the literature and personal work, reviews the numerous investigations prompted by these complications and
provides recommendations regarding follow-up. Conduction disturbances and ventricular arrhythmias are both common; although
mostly asymptomatic, they are the likely cause of syncopy and sudden death. Supraventricular arrhythmias are less common but
cause symptoms more frequently. Detecting patients at risk for life-threatening arrhythmias is an important task. The simple
surface electrocardiogram (ECG) gives a host of information regarding patients at risk. Holter recordings, signal-averaged
ECG, and invasive electrophysiological studies may all be helpful; the indications to perform these investigations are discussed
and propositions are made for the follow-up of the postoperative patient. There is hope that a systematic approach along these
lines, together with surgery done at an earlier age, will decrease the incidence of severe arrhythmias and sudden death in
the future. |
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Keywords: | : Arrhythmias — Post-operative complete heart blood — Ventricular tachycardia — Ventricular late potential sudden death |
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