劍橋詞典a condition affecting the electrical activity of the heart , causing a very fast heart rhythm and sometimes resulting in sudden death 長(zhǎng)QT綜郃癥 Long QT syndrome can cause sudden loss of consciousness . 長(zhǎng)QT綜郃癥可導(dǎo)致突發(fā)性失去知覺(jué)。 返回 long QT syndrome