Quantitative assessment of left ventricular function in patients with percutaneous coronary intervention byreal-time three-dimensional echocardiography
QI Qing-hua1, ZHANG Lian-zhong2, GAO Chuan-yu2
1.First Affiliated Hospital of Zhengzhou University, Zhengzhou 450003, China;2.Henan Provincial People’s Hospital, Zhengzhou 450003, China
Abstract：Objective: To assess the value of real-time three-dimensional echocardiography(RT-3DE) in the evaluation of left ventricular function in patients with coronary artery disease(CAD) after percutaneous coronary intervention(PCI). Methods: RT-3DE was performed in 30 patients who accepted PCI treatment successfully and 20 normal subjects who had no coronary artery stenosis. RT-3DE was performed and three-dimensional image data were analyzed. Series of left ventricular parameters were measured in 3~5 days pre-, 3 days post- and 1 month post-operation. Left ventricular end-diastolic volume(EDV), end-systolic volume(ESV), ejection fraction(EF), the peak ejection rate(PER), peak filling rate(PFR), the time to the point with minimal systolic volume(Tmsv) in 16 segments standard deviation and the maximal difference of time(Tmsv16-SD, Tmsv16-Dif). These parameters were respectively compared. Results: Compared with normal subjects, EDV, ESV, Tmsv16-SD, Tmsv16-Dif were significantly increased(P<0.01). EF, PER and PFR in patients group were significantly decreased(P<0.01). Compared with pre-operation, EDV, Tmsv16-SD, Tmsv16-Dif were significantly decreased respectively. Meanwhile whole EF, PER and PFR were significantly increased after PCI. Conclusion: Left ventricular remodeling could be found in patients with CAD. PCI might reverse left ventricular remodeling somewhat. RT-3DE could be a new corrected valuable method of evaluating left ventricular remodeling and reverse remodeling in patients with CAD pre- and post-PCI.
2011, Vol. 22 
