Abstract
The aim. To evaluate the effect of myocardial infarction (MI) of the right ventricle (RV) on the clinical course of acute period and long-term prognosis of patients with the Q-MI of the left ventricular posterior wall (PWLV). Materials and methods. The study involved 256 patients with Q-MI PWLV aged 64,21±0,6 years. Patients were divided into 2 groups: the 1st group – 155 patients with MI of the RV on the background of Q-MI PWLV, the 2nd group – 101 patients with Q-MI PWLV. Follow-up was 30.6±4.5 months. Study endpoints were: unstable angina (UA), recurrent MI (Re-MI), stroke, cardiovascular (CV) death and HF-hospitalizations. Results. The acute period RV MI associated with the significantly higher frequency of the ventricular tachycardia (p=0.0257), ventricular fibrillation (p=0.0249), complete AV block (p=0.0011), cardiogenic shock (p=0,0096), the early post-infarction angina (p=0.0306) and severe manifestations of HF. As a result of 30.6 month follow-up endpoint reached 65 (41.9 %) patients after RV MI, and 29 (28.7 %) patients in the 2nd group (Cox’s F-Test: p=0,01043). The frequency of the CV-death (p=0.1258), Re-MI (p=0.838) and stroke (p=0.5108) were not significantly different between the group at the end of observation, however, in patients after RV MI the frequency of the UA (p=0.0452) and HF-hospitalization (p=0.0387) were significantly higher. Conclusion. The presence of the RV MI in patients with Q-MI PWLV associated with greater frequency of life-threatening complications of the acute period and a significant increase of the CV-events during the 30.6 months of follow-up.
Published Version
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