Family׳s ECG in right precordial leads. A: Mother׳s ECG, left: 4th intercostal leads, right: 3rd intercostal leads Coved type ECG was exhibited in 3rd intercostal leads. B: Elder sister׳s ECG, left: rest ECG, right: 3rd ICL lead on pilsicainide administration SSS and coved type ECG was exhibited during pilsicainide administration C: Elder brother׳s ECG, left: rest ECG, middle: 3rd ICL leads, right: 3rd ICL lead on pilsicainide administration Saddle back like ECG was exhibited during pilsicainide administration.