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二十年来一直认为 Q-T 间期延长与心电的不稳定和心脏性猝死有关,仅在最近临床心脏病学中才产生了 QT 延长具有抗心律失常作用的概念。历史的展望QT 间期是自 QRS 波群开始至 T 波终
For two decades it has been believed that the prolongation of the Q-T interval is associated with unstable ECG and sudden cardiac death, and the concept of prolongation of anti-arrhythmic effects of QT has been developed only in recent clinical cardiology. Historical Outlook The QT interval is from the beginning of the QRS complex to the end of the T wave