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QRS波可能与起搏器植入患者的预后有关,QRS波时限越长,左、右室电激动顺序和收缩的同步性越差,提示左室收缩功能越差。QRS波时限、形态、电轴及振幅在心尖部与室间隔部起搏不同,在不同的室间隔部起搏也有所不同。大多认为室间隔起搏的QRS波时限小于心尖部起搏,室间隔起搏的QRS波形态更接近生理性起搏,尤其是His束起搏,所以QRS波的时限和形态可能反映心脏起搏部位、左心功能、心脏电活动同步性等。但也有部分研究认为不同起搏方式对QRS波没有影响。
QRS wave may be related to the prognosis of patients with pacemaker implantation. The longer the QRS wave duration, the worse the synchronicity between left and right ventricular activation order and contraction, suggesting that left ventricular systolic function is worse. QRS wave duration, shape, electrical axis and amplitude in the apex and ventricular pacing different pacing in different ventricular septum pacing is also different. Most believe that QRS wave interval ventricular pacing less apical pacing, QRS waveform of ventricular septal pacing more physiological pacing, especially the bundle of His bundle, so the duration and morphology of QRS wave may reflect cardiac pacing Location, left ventricular function, cardiac electrical activity synchronization. However, some studies suggest that different pacing methods have no effect on QRS wave.