Abstract
The purpose — to study the indicators of the main risk factors for sudden cardiac death in the acute period in patients with myocardial infarction without coronary artery obstruction (MIwCAO). Material and methods. We examined 60 patients admitted to the Republican Clinical and Diagnostic Center of the Ministry of Health of the Udmurt Republic with a diagnosis of myocardial infarction, 30 of whom had a single-vessel lesion of the coronary bed and 32 had a myocardial infarction without obstruction of the coronary arteries. Results. The main indices of intracardiac hemodynamics (LVEF, EDV) were worse in the group of patients with MIwCAO: LVEF was on average 5.2% lower, LV EDV was higher by 26 ml. Heart rate was higher in patients with MIwCAO both in the daytime and at night. Among the ventricular rhythm disorders (VRD) in the group of patients with MIwCAO, most frequent were single VES, unstable paroxysms of VT, and polymorphic ventricular premature beats. In the remote period of myocardial infarction, indicators of SCD risk improved, but more effectively in the MICAO group. Conclusions. The risk of SCD is higher in patients with MIwCAO, mainly due to LVEF, LV EDV, high heart rate both in the daytime and at night, SDNN index, and QT. The drugs used in patients with post-myocardial infarction may reduce the risk of SCD in patients with MICAO.
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