Cardiovascular diseases are the main cause of invalidism and untimely death of people in developed countries. The share of cardiovascular diseases in the mortality rate reaches 40-60%. The frequency rate of cardiovascular diseases  among children and adolescents is growing with each passing year. Increased blood pressure variability in patients with arterial hypertension in youth is a factor aggravating the arterial stiffness derangement. The aim of this study is to develop methods of early cardiovascular diseases’ diagnostics in children in order to reduce the rate of primary and repeated complications in the future. Observation showed that singular blood pressure measurements at a consultative appointment with a doctor do not give the full picture of the character of its changes in a child and may lead to incorrect diagnosis, as blood pressure has considerable individual variability. Daily blood pressure monitoring allowed revealing high arterial hypertension rate in children at night, including children with normal and low blood pressure during daytime. It is shown that the non-invasive oscillometric arteriography method allows to determine parameters characterizing arterial vessels’ remodeling with a high reproducibility. Significant difference between the obesity degree and the pulse wave aortic spread speed increase has been indentified.

There is currently an increase in the frequency of cardiovascular diseases which are caused by atherosclerotic vessel impairments, such as myocardial infarction and cardiovascular accident. The purpose of this research is to study the possibility of implement into outpatient pediatric practice the method of arteriography for determining changes in the aortic wall at the early development stage. 2 indicators were measured using arteriography: pulse wave velocity and the augmentation index in healthy children aged 6 to 12 years old. The results obtained in a study of healthy children reliably differ from standardized norms for adults and may be used as references.Key words: arteriography, atherosclerosis, arterial rigidity, pulse wave velocity, augmentation index, children.

The 24 hour blood pressure monitoring has gone beyond the scope of the scientific research for the last decade and is now more widely used in practical healthcare, including pediatrics to identify changes of pressure both towards hypertension and hypotension. It is obviously advantageous to prove pathologic changes in the blood pressure level, as well as to give an objective evaluation of its intensity and duration. This article is devoted to identification of the diagnostic value for the daily blood pressure monitoring outpatient conditions and development of the optimal monitoring regimes to be used among children.Key words: 24 hour blood pressure monitoring, arterial hypertension, arterial hypotension, vegetovascular dystonia, children.