对表现为心动过缓的病窦综合征病人,以72次/分的频率进行心室起搏和以同样频率起搏心房相比,心排血量低38.9％,血压亦较低。我们将置入ⅤⅤⅠ起搏器的病窦综合征病人分为有起搏器综合征和无起搏器综合征两组,并以相同频率起搏心房和心室。前一组病人起搏心室时,动脉收缩压和平均压显著 For patients presenting with sick bradycardia with sinus syndrome, ventricular pacing at a rate of 72 bpm and pacing atrial pacing at the same frequency resulted in a 38.9% lower cardiac output and lower blood pressure. We will be placed Ⅴ Ⅴ pacemaker sick sinus syndrome patients were divided into two groups with pacemaker syndrome and no pacemaker syndrome, and the same frequency of atrial and ventricular pacing. Arterial systolic pressure and mean pressure were significant when the former group of patients pacing the ventricles