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The aim of this study was to investigate the application of adenosine stress echocardiography (ASE) in the prognosis of acute myocardial infarction (AMI) following percutaneous coronary intervention (PCI). A total of 79 patients with AMI who underwent PCI were selected for the study. ASE testing was performed within one week following the PCI. Subsequent to the ASE, the patients with ≥5% increases in the left ventricular ejection fraction (LVEF) levels were included in the improved LVEF group, while patients with &lt;5% increases in LVEF levels were included in the unimproved LVEF group. A follow-up study was performed during the 24 months subsequent to the ASE. The incidence of major adverse cardiovascular events (MACEs) was observed and compared between the two groups and logistic regression analysis was applied to identify the risk factors for clinical prognosis. There were no significant differences in Killip classification, LVEF, left ventricular end-diastolic diameter or blood plasma B-type natriuretic peptide concentration between the two groups following PCI. The incidence of MACEs in the improved LVEF group was significantly lower than that in unimproved LVEF group (14.29 versus 43.24%, respectively; P&lt;0.05). Logistic regression analysis identified LVEF increases of &lt;5% and segment improvements of ≤3 as the risk factors for the clinical prognosis of AMI following treatment with PCI. Therefore, ASE is an effective method of assessing the clinical effect of PCI treatment, which may be utilized to predict the incidence of MACEs following PCI.

experimental and therapeutic medicine

Application of adenosine stress echocardiography in the prognosis of acute myocardial infarction following percutaneous coronary interventional therapy