Alteration Of Left Ventricular Function In Patients After Coronary Artery Bypass Grafting By Doppler Echocardiography

Objective: To assess the changes of left ventricular function after Coronary artery bypass grafting (CABG) with Doppler echocardiography. Methods: eighty-one patients of coronary artery disease, who had accepted CABG, were enrolled and grouped as: non-infraction, infraction, then infraction were grouped as aneurysm, without aneurysm, non-infraction were grouped as ≤2 bridges, >2 bridges. Left ventricular ejection fraction (LVEF), End-diastolic volume (EDV), End-systolic volume (ESV), Stroke volume (SV), Left ventricular fractional shortening (LVFS), E/A ratio, were measured by Doppler echocardiography before and 3 months after CABG. Results: Except infraction, infraction with aneurysm and LVFS in infraction without aneurysm, in non-infraction, infraction without cardiac aneurysm, LVEF, LVFS, SV, EDV and E/A increased, ESV decreased after CABG.Changes in ≤2 and >2 bridges had no difference. Conclusions: The results of this study suggest that the left ventricular systolic and diastolic function were improved in CAD patients progressed after CABG.. But cardiac aneurysm may have negative effect to left ventricular function.