Effect of percutaneous coronary intervention on cardiac systolic function in patients with myocardial infarction

Objective To study the effect of pereutaneous coronary intervention (PCI) on cardi-ac systolic function in patients with myocardial infarction over a 3 - month period. Methods Sixty - two myocardial infarction with left ventricular dysfunction, including 32 acute myocardial infarction (AMI) and 30 old myocardial infarction (OMI) were treated by percutaneous transluminal coronary angioplasty (PTCA) and stent. Three months follow - up was conducted after PCI. The left ventricular end diastolic diameter (LVEDd), left atrial diameter (LAD), left ventricular end diastolic volume (LVEDV), left ventrieular end systolic volume (LVESV), left ventrieular ejection fraction (LVEF)and the left ventricu-lar fractional shortening (LVFS), indexes were measured by Doppler echocardiography and compared the pararneters pre - and - post PCI. Results The LVED, LAD, LVEDV, LVESV indexs were significantly reduced (P <0.01)after PCI than those before PCI. LVEF and LVFS indexes were increased apparently (P < 0. 01). The earlier the revaseularization of coronary artery, the better the cardiac function recovery. Concinsions The MI patients with left ventricular dysfunction should be treated with PCI as soon as pos-sible which can improve the left ventricular systolic function apparently and impede the remodeling of the left ventricle. Key words: Myocardial infaretion ;  Percutaneous coronary intervention ;  Ventricular function ;