【摘要】 目的探讨右室心尖部(RVA)起搏和右室流出道间隔部(RVS)起搏对右房压力及肺毛细血管平均压的影响。方法选择2009年1月-2011年8月阵发性室上速射频消融术后,临床检查显示无器质性心脏病患者36例;术后分别持续行5 min、10 min心房感知心室起搏(VAT)模式的RVA、RVS起搏,同时记录右房压力及肺毛细血管平均压,采用统计学方法进行对比。结果 VAT模式下,持续5 min、10 min RVA起搏的右房a波、V波及肺毛细血管平均压均高于RVS起搏,两者对比差异有统计学意义,P<0.05,且RVA持续10 min起搏的右房压力及肺毛细血管平均压较持续5min的压力有增加的趋势,而RVS起搏则无明显变化。结论 RVS起搏较RVA起搏对右房压力及肺毛细血管平均压的影响小,RVS起搏优于RVA起搏。更多还原

【Abstract】 Objective To investigate the effects of right ventricular apical(RVA) pacing and right ventricular septal(RVS) pacing on right atrium pressure and mean pressure of pulmonary capillary.Methods We selected 36 patients without structural heart disease,and after radiofrequency catheter ablation with paroxysmal supraventricular tachycardia form January 2009 to August 2011;after operation continued 5 min and 10 min atrium sensing ventricular pacing(VAT) model of RVA and RVS,simultaneity recorded right atrium pressure and mean pressure of pulmonary capillary,the use of statistical methods to compare.Results In VAT mode,continued 5 min and 10 min RVA pacing the right atrium of a wave,V wave and mean pressure of pulmonary capillary were higher than RVS pacing,there was a significant difference(P<0.05,and continued 10 min RVA pacing right atrium pressure and mean pressure of pulmonary capillary were higher than continued 5 min on the increase,but RVS pacing had no significant change.Conclusion Effects of RVS pacing on right atrium pressure and mean pulmonary capillary pressure is less than RVA pacing.更多还原