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在QRS时间正常时,QTc间期的临床意义已为公认,并作为反应心室复极状态的常规心电图指标。但近年来发现在束支阻滞和
The clinical significance of QTc interval has been well established at normal QRS duration and serves as a routine ECG indicator of ventricular repolarization. But in recent years found in bundle branch block and