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Electrocardiograph pattern in long QT syndrome
| ECG in LQTS | |
| LQT1 | Prolonged QT, T wave normal or with increased amplitude with a wide base |
| LQT2 | Prolonged QT, T wave with low amplitude and often bifid |
| LQT3 | Late onset of the T wave, prolonged isoelectric segment |
ECG: Electrocardiography; LQTS : Long QT syndrome.
