CAJ | 학술논문

目的:观察单腔起搏器不同右室起搏比率对心房纤颤合并长R-R间期患者左心功能的影响及可能机制.方法:将24例持续性心房纤颤长合并R-R间期患者置入永久单腔心脏起搏器,根据右室起搏比率(Vp%)是否≥40%分为两组,病例组(Vp%≥40%)及对照组(Vp%<40%).分别在出院前、1年、2年时随访,测定右室起搏比率,左心房内径(LAD),左室舒张末内径(LVEDD),左室射血分数(LVEF).结果:两组在出院前LAD比较差异无统计学意义;病例组LAD在1年及2年时比较,差异有统计学意义;对照组与病例组的LAD变化趋势比较,有显著性差异;两组患者出院前与术后1年的LVEDD差异无统计学意义,两组LVEDD1年与2年时比较差异有统计学意义,两组2年时的LVEDD比较有统计学意义,两组LVEDD变化趋势比较有统计学意义;病例组LVEF的出院前、术后1年、2年改变有统计学意义.两组出院前、1年、2年时LVEF变化趋势无统计学意义.结论:右室起搏比率≥40%对于心房纤颤长合并R-R间期患者,引起LAD,LVEDD扩大, LVEF下降.
목적:관찰단강기박기불동우실기박비솔대심방섬전합병장R-R간기환자좌심공능적영향급가능궤제.방법:장24례지속성심방섬전장합병R-R간기환자치입영구단강심장기박기,근거우실기박비솔(Vp%)시부≥40%분위량조,병례조(Vp%≥40%)급대조조(Vp%<40%).분별재출원전、1년、2년시수방,측정우실기박비솔,좌심방내경(LAD),좌실서장말내경(LVEDD),좌실사혈분수(LVEF).결과:량조재출원전LAD비교차이무통계학의의;병례조LAD재1년급2년시비교,차이유통계학의의;대조조여병례조적LAD변화추세비교,유현저성차이;량조환자출원전여술후1년적LVEDD차이무통계학의의,량조LVEDD1년여2년시비교차이유통계학의의,량조2년시적LVEDD비교유통계학의의,량조LVEDD변화추세비교유통계학의의;병례조LVEF적출원전、술후1년、2년개변유통계학의의.량조출원전、1년、2년시LVEF변화추세무통계학의의.결론:우실기박비솔≥40%대우심방섬전장합병R-R간기환자,인기LAD,LVEDD확대, LVEF하강.
@@@@Objective:To explore observational single-chamber pacemaker ratio on left ventricular function and its possible mechanism.Method:24 cases successfully implanted a permanent single-chamber pacemakers were divided into two groups with Right-ventricular Pacemaker ratio greater or less than 40%.after implantation,before discharge,1 year, 2 years of follow-up determination the ratio of right ventricular pacing, left atrial diameter (LAD),left ventricular end diastolic diameter (LVEDD) and left ventricular ejection fraction (LVEF).Result:Two groups of left atrial diameter (LAD), the difference was not statistically significant;the two groups at before discharge,1 year compared to 2 years,the difference was statistically significant to 1 year and 2 years in Variation Trend of LVEDD and ejection fraction (LVEF);the difference statistically significant to comparison of two group in variation trend of LVEDD;no significant difference in variation trend of LVEF.Conclusions:Right-ventricular Pacemaker ratio with greater than 40% can increase left ventricular enlargement and the decline in cardiac function in patients with atrial fibrillation with long R-R interval.