Sudden cardiac death (SCD) is a death from cardiac causes, which occurred within hours of onset of symptoms 
. The most common immediate cause of SCD is ventricular tachycardia, and patients with post-infarction ventricular aneurysm (PLVA) could be a higher risk group of it. That’s why the aim of our research was to study peculiarities of ECG monitoring and heart rate variability in patients with PLVA. All patients underwent ECG monitoring, which was performed by the standard method [4, 7]
using the Holter-system "Cardiosens K". We analyzed standard parameters along with heart rate variability (HRV) data.
In our research in summary we stated that such patients are characterized by increased sympathetic activity and higher humoral influences, prevalence of peripheral effects over the central ones, as well as significantly longer duration of QT interval. The use of CABG increases the rate of ectopic complexes of supraventricular and ventricular origin. The patients with PLVA and previous PCI have, in this context, the most favorable course of the disease.