摘要
对17例缓慢性心律失常患者作不同频率右心室起搏,观察心排血量,心排血指数及主肺动脉压力的变化,发现80次/min起搏时血液动力学效应最佳。指出这种方法对选择适宜频率起搏是有益的。患者基础频率越低,心脏阻滞部位越重,预后亦越差(p<0.05)。
17 cases with bradycardia were paced in right ventricle and cardiac output, cardiac index and malor pulmonary arterial pressure were investig- ated. It was found that the hemodynamic effect was satisfactory with the pacing being 80 per minute, and this approach proved useful for the selec- tion of optimal pacing frequeicies. We conclude that the slower the heart rate and the lower the position of heart block are, the worse will be the prognosis(p<0.05).
