经皮腔内冠状动脉成形及支架置入术对左心功能的影响

Effect of percutaneous transluminal coronary angioplasty and stent implantation on left ventricular function

目的 :探讨经皮腔内冠状动脉成形术 (PTCA)及支架置入术对冠状动脉粥样硬化性心脏病 (冠心病 )左室收缩和舒张功能的影响。方法 :对 2 2例经选择性冠状动脉造影证实的至少有一支一处大于 5 0 %狭窄的冠心病患者行PTCA及支架置入术 ,手术前后分别用二维和多普勒超声心动图检测心脏收缩和舒张功能指标。结果 :PTCA及支架置入术后左室射血分数 (LVEF)、E峰、E/A、E峰减速度 (Edc)均升高 ,A峰降低。结论 :PTCA及支架置入术治疗冠心病 。

Objective:To study the effect of percutaneous transluminal coronary angioplasty and intravascluar stent(PTCA+Stent) on left ventricular (LV) systolic and diastolic function in patients with coronary heart disease.Methods:Before and after PTCA+Stent,LV systolic and diastolic function was detected with two-dimensional and doppler echocardiography in 22 patients who at least had one stenosis more than 50% at one vessel confirmed with selected coronary angiography.Results:After PTCA+Stent,LV ejection fraction(LVEF),E wave,A/E,and E wave deceleration(Edc) was higher,A wave was lower than before PTCA+Stent.Conclusion:PTCA+Stent can improve left ventricular systolic and diastolic function in patients with coronary heart disease.