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Background: This study aimed to determine the impact of the percutaneous coronary intervention (PCI) on myocardial function assessed by tissue Doppler echocardiography. Methods: Conventional two-dimensional echocardiography and Myocardial tissue peak velocities were recorded at the lateral, ant.septal, post.septal, posterior, ant. and inferior angles of the mitral annulus as well as at the lateral tricuspid annulus by pulsed-wave tissue Doppler echocardiography before PCI, as well as 1 day and 6 weeks after intervention. Results: Fifty consecutive patients with chronic stable angina and preserved systolic left ventricular function (mean age, 58.3 ± 6.594 years; 32 men) undergoing PCI were studied. Conventional echocardiographic revealed no statistically significant difference between pre- and post-PCI (1 day after PCI and 6 weeks after PCI) as regarding trans-mitral and trans-tricuspid flow velocities except as regarding LVEDD, LVESD and LVEF which showed a significant improvement post-PCI. Compared with pre-interventional values, systolic peak velocity and early diastolic velocities improved at all sites (P ≤ 0.05 for each). The most pronounced improvement occurred in the septal area. Similarly, late diastolic velocities improved at all sites (P ≤ 0.05 for each) except at post Wall A’. Also, there was a significant improvement of E’DT & E’/A’ ratio after PCI (P value is significant 0.05 for each). There were significant reductions in IVRT, IVCT & MPI after PCI (P value is significant Conclusions: Tissue Doppler parameters of diastolic and systolic function improve early after successful PCI, and this effect persists to 6 weeks after the intervention that emphasizes its value in the improvement of regional and global LV functions and myocardial contractility.

world journal of cardiovascular diseases

Tissue Doppler Study before and after PCI in Patients with Chronic Stable Angina and Apparent Normal Ventricular Function for Evaluation of Myocardial Function