The heart rate variability is the method of assessment the cardiovascular complications

The level of cardiovascular complications remains high in the perioperative period in case extracardiac interventions. The cardiovascular complications were found very often for the elderly patients with coronary artery desease and with factors of development their. However, there is no perfect method of assessment of the risk cardiovascular complications. The heart rate variability can be used for the evaluate of the autonomic nervous system for the predicting the rick of sudden death and cardiovascular desease.