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目的比较右室间隔起搏与右室心尖部起搏的血流动力学有无不同。方法 60例缓慢心律失常患者,具有起搏器植入指征。分为右室间隔起搏(RVS)组及右室心尖部起搏(RVA)组。于术前、术后行心电图,超声心动图检查。观察QRS波时限,左室舒张末期内径(LVEDD),左心室射血分数(LVEF),每搏量(sv),E/A值,二尖瓣返流量。结果右室间隔起搏,与右室心尖部起搏比较,QRS波时限增宽程度小,LVEF以及sv降低程度小。结论右室间隔起搏比右室心尖部起搏更接近生理性起搏,对血流动力学的不利影响较小,可能是一个更佳的起搏部位。
Objective To compare the hemodynamics of right ventricular apical pacing with right ventricular septal pacing. Methods Sixty patients with bradyarrhythmia were implanted with pacemaker. Divided into right ventricular septal pacing (RVS) group and right ventricular apical pacing (RVA) group. Preoperative and postoperative ECG, echocardiography. The duration of QRS wave, left ventricular end-diastolic dimension (LVEDD), left ventricular ejection fraction (LVEF), stroke volume (sv), E / A value and mitral regurgitation were observed. Results Right ventricular septal pacing, compared with right ventricular apical pacing, QRS wave duration was small, LVEF and sv reduced to a lesser extent. Conclusion Right ventricular septal pacing is more similar to physiological pacing than right ventricular apical pacing, with less adverse effect on hemodynamics, which may be a better pacing site.