ANGIOGRAPHIC CHARACTERISTICS OF PATIENTS WITH ACUTE MYOCARDIAL INFARCTION WITH REDUCED LEFT VENTRICULAR EJECTION FRACTION AND ISCHEMIC MITRAL INSUFFICIENCY
DOI:
https://doi.org/10.11603/1811-2471.2023.v.i4.14311Keywords:
myocardial infarction, coronary angiography, mitral insufficiency, infarct-dependent arteryAbstract
SUMMARY. The aim – to study the frequency of occurrence of mitral insufficiency in acute myocardial infarction with reduced LV ejection fraction according to the results of angiographic examination of coronary arteries.
Material and Methods. In this study, general clinical examination of patients, laboratory diagnostics, echocardiography, electrocardiography, and coronary angiography were used.
Results. In patients with acute myocardial infarction and mitral insufficiency, the right coronary artery was most often diagnosed as an infarct-related vessel – 46 (45.55 %), followed by the circumflex branch of the left coronary artery – 34 (33.66 %). A statistically significant multivessel lesion was found in patients with mitral regurgitation – 57 patients (56.44 %), compared to patients without mitral regurgitation – 18 patients (37.50 %). In patients with mitral regurgitation, the average time from the onset of the patient's complaints to myocardial revascularization was (37.46± 4.79) hours, while in patients without mitral regurgitation, this time was (23.39±4.37) hours.
Conclusions. According to the obtained data, infarct-related damage to the PCA or OG LKA, an increase in the time from the onset of myocardial infarction symptoms to revascularization, and the absence of anterograde blood flow in the artery after revascularization worsen the prognosis and increase the probability of MN.
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