Renal functions and prognosis in acute myocardial infarction. Concomitant left ventricular dysfunction should have been taken into account

In the current study entitled “Prognostic impact of renal dysfunction on long-term mortality in patients with preserved, moderately impaired, and severely impaired left ventricular systolic function following myocardial infarction. Anatol J Cardiol 2018; 20: 21-8.” Savic et al. (1), have evaluated the prognostic impact of renal dysfunction (RD) at admission in patients with preserved, moderately, and severely impaired left ventricular systolic function following ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention. They found that patients with RD renal dysfunction (RD) had higher 6-year mortality and that renal dysfunction RD at admission was a strong independent predictor in patients with impaired left ventricular systolic function but not in those with preserved left ventricular systolic function (LVEF >50%). In patients with impaired left ventricular systolic function (LVEF <40%) and a mid-range LVEF (40%–50%), the presence of RD increased the 6-year mortality by 3 and 2.5 times, respectively