Objectives To assess the effect of delayed opening the infarct - related artery (IRA) by percutanous coronary intervention (PCI) on the late phase left ventricular function after acute ante- rior myocardial infarction...Objectives To assess the effect of delayed opening the infarct - related artery (IRA) by percutanous coronary intervention (PCI) on the late phase left ventricular function after acute ante- rior myocardial infarction. Methods 64 patients with initial Q - wave anterior myocardial infarction and the infarct - related arteries were total occluded conformed by angiogram at 2 to 14 days after onset were divided into successful PCI group and control group ( not re- ceiving PCI or the IRA not re - opened). 2 - DE was performed at early phase ( about 3 weeks) , 2 and 6 months after onset of AMI respectively to detect the left ventricular function and left ventricular wall motion ab- normality (VWMA). The total congestive heart failure events were recorded during 6 months follow-up. Re- sults VWMA scores, left ventricular ejection frac- tion (LVEF) , left ventricular end - diastolic and end - systolic volume indices ( LVEDVI and LVDSVI) were similar in 2 groups at early phase and 2 months. There were no differences between early phase and 2 months in each group too. VWMA scores and LVEF did not changed at 6 months in each group compared with the early phase and 2 months ( P > 0. 05 ). But LVEDVI and LVESVI were significantly smaller in the successful PCI group than in the control group (P < 0.01, P < 0. 05). The congestive heart failure events were taken place in 19% of patients in control group com- pared with 2% in successful PCI group ( P > 0. 05 ). Conclusions Although the infarct size does not changed, delayed opening the IRA has beneficial effect to the late phase left ventricular dilatation after acuteanterior myocardial infarction.展开更多
【目的】探讨P波离散度对高血压左心室肥厚患者心房颤动的临床价值。【方法】对本院自2010年4月至2013年3月收治的204例高血压左心室肥厚患者，根据患者的病理特征，将104例伴有心房颤动患者作为观察组，100例无心房颤动患者作为对照组...【目的】探讨P波离散度对高血压左心室肥厚患者心房颤动的临床价值。【方法】对本院自2010年4月至2013年3月收治的204例高血压左心室肥厚患者，根据患者的病理特征，将104例伴有心房颤动患者作为观察组，100例无心房颤动患者作为对照组，测量两组患者最大P波时限（Pmax ）、最小P波时限（Pmin）、P波离散度（P波离散度＝Pmax -Pmin），比较两组心电图和彩色脉冲多普勒超声心动检查指标左心室质量指数（LVMI）的差异性。【结果】观察组与对照组的P波离散度分别为（45．3±10．8）m s、（30．7±11．0）m s ，两组相比较差异有显著性（ P ＜0．05），观察组Pmax值明显高于对照组 Pmax值，两组相比较差异有显著性（ P ＜0．05）；观察组LVMI值为（152．4±14．9）g/m2，与对照组（101．1±9．2）g/m2比较，差异有显著性（ P ＜0．05）。【结论】P波离散度、Pmax是高血压左心室肥厚患者心房颤动的预测因子，其可为高血压左心室肥厚患者心房颤动的临床诊断提供关键的价值参考。展开更多
目的:应用常规超声及二维超声斑点追踪成像技术(2D-STI)检测扩张型心肌病(DCM)及正常人左室形态变化及左室心肌扭转特征,探讨它们的变化规律及对左室收缩功能的影响。方法:用配有二维斑点追踪技术Q-lab 9.0分析软件的Philips i E 33彩...目的:应用常规超声及二维超声斑点追踪成像技术(2D-STI)检测扩张型心肌病(DCM)及正常人左室形态变化及左室心肌扭转特征,探讨它们的变化规律及对左室收缩功能的影响。方法:用配有二维斑点追踪技术Q-lab 9.0分析软件的Philips i E 33彩色多普勒超声诊断仪测量40例DCM患者和25例健康者(对照组)的左室旋转、扭转峰值及形态变化指标——球化指数。结果:DCM组左室心尖位旋转角度峰值、心底位旋转角度峰值及左室扭转、球形指数较对照组显著减低(P<0.01)。左室扭转及球形指数均与左室射血分数正相关,左室扭转与球形指数亦显著正相关。结论:左室扭转角度与球形指数评价心功能具有较好的敏感性和特异性,为临床评价心肌功能变化提供一种新方法。展开更多
文摘Objectives To assess the effect of delayed opening the infarct - related artery (IRA) by percutanous coronary intervention (PCI) on the late phase left ventricular function after acute ante- rior myocardial infarction. Methods 64 patients with initial Q - wave anterior myocardial infarction and the infarct - related arteries were total occluded conformed by angiogram at 2 to 14 days after onset were divided into successful PCI group and control group ( not re- ceiving PCI or the IRA not re - opened). 2 - DE was performed at early phase ( about 3 weeks) , 2 and 6 months after onset of AMI respectively to detect the left ventricular function and left ventricular wall motion ab- normality (VWMA). The total congestive heart failure events were recorded during 6 months follow-up. Re- sults VWMA scores, left ventricular ejection frac- tion (LVEF) , left ventricular end - diastolic and end - systolic volume indices ( LVEDVI and LVDSVI) were similar in 2 groups at early phase and 2 months. There were no differences between early phase and 2 months in each group too. VWMA scores and LVEF did not changed at 6 months in each group compared with the early phase and 2 months ( P > 0. 05 ). But LVEDVI and LVESVI were significantly smaller in the successful PCI group than in the control group (P < 0.01, P < 0. 05). The congestive heart failure events were taken place in 19% of patients in control group com- pared with 2% in successful PCI group ( P > 0. 05 ). Conclusions Although the infarct size does not changed, delayed opening the IRA has beneficial effect to the late phase left ventricular dilatation after acuteanterior myocardial infarction.
文摘【目的】探讨P波离散度对高血压左心室肥厚患者心房颤动的临床价值。【方法】对本院自2010年4月至2013年3月收治的204例高血压左心室肥厚患者，根据患者的病理特征，将104例伴有心房颤动患者作为观察组，100例无心房颤动患者作为对照组，测量两组患者最大P波时限（Pmax ）、最小P波时限（Pmin）、P波离散度（P波离散度＝Pmax -Pmin），比较两组心电图和彩色脉冲多普勒超声心动检查指标左心室质量指数（LVMI）的差异性。【结果】观察组与对照组的P波离散度分别为（45．3±10．8）m s、（30．7±11．0）m s ，两组相比较差异有显著性（ P ＜0．05），观察组Pmax值明显高于对照组 Pmax值，两组相比较差异有显著性（ P ＜0．05）；观察组LVMI值为（152．4±14．9）g/m2，与对照组（101．1±9．2）g/m2比较，差异有显著性（ P ＜0．05）。【结论】P波离散度、Pmax是高血压左心室肥厚患者心房颤动的预测因子，其可为高血压左心室肥厚患者心房颤动的临床诊断提供关键的价值参考。
文摘目的:应用常规超声及二维超声斑点追踪成像技术(2D-STI)检测扩张型心肌病(DCM)及正常人左室形态变化及左室心肌扭转特征,探讨它们的变化规律及对左室收缩功能的影响。方法:用配有二维斑点追踪技术Q-lab 9.0分析软件的Philips i E 33彩色多普勒超声诊断仪测量40例DCM患者和25例健康者(对照组)的左室旋转、扭转峰值及形态变化指标——球化指数。结果:DCM组左室心尖位旋转角度峰值、心底位旋转角度峰值及左室扭转、球形指数较对照组显著减低(P<0.01)。左室扭转及球形指数均与左室射血分数正相关,左室扭转与球形指数亦显著正相关。结论:左室扭转角度与球形指数评价心功能具有较好的敏感性和特异性,为临床评价心肌功能变化提供一种新方法。
