Acute Myocardial Infarction Clinical Trial
Official title:
Prognostic Value of Right Ventricular Myocardial Strain in Patients With Acute Myocardial Infarction With Different Infarction-related Vessels
For a long time, the right ventricle has been the "forgotten chamber", but with the deepening of people's understanding of the disease, right ventricular dysfunction has become an important factor to evaluate the disease progression and late prognosis of patients with AMI. Right ventricular myocardial strain derived from two-dimensional speckle tracking echocardiography is a new method for early evaluation of regional and global right ventricular systolic function, and its repeatability is much higher than that of LVEF. Acute inferior myocardial infarction is often caused by occlusion of the proximal middle segment of the right coronary artery. Many studies have confirmed that RVMS is an independent predictor of poor prognosis in patients with AIMI. However, 60% of the right ventricular systolic function is contributed by the left ventricle and interventricular septum, and the left anterior descending branch and the left circumflex branch are the main sources of blood supply to the left ventricle and interventricular septum, so in theory, non-RCA occlusion can also lead to varying degrees of right ventricular dysfunction. However, there are few studies on the role of RVMS in predicting the prognosis of AMI patients caused by non-RCA occlusion. Therefore, the purpose of this study is to prospectively study the value of dynamic changes of RVMS in predicting the prognosis of patients with acute myocardial infarction with different infarct-related vessels, in order to provide more clinical reference information for the diagnosis and treatment of AMI.
In this study, 200 patients with acute myocardial infarction treated in Peking University Third Hospital from March 2022 to March 2024 were enrolled in this study. the parameters of myocardial enzymes, blood lipids and echocardiography were collected at the acute stage, 2 weeks and 6 months after discharge, and were followed up for two year. The echocardiographic parameters and MACE of patients with acute myocardial infarction with different infarction related vessels were compared. This shows the significance of right ventricular myocardial strain in predicting the prognosis of patients with acute myocardial infarction. ;
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