Abstract
Abstract: Objective: To investigate the significance of 24-hr ambulatory blood pressure monitoring (ABPM) data and metabolism indicators, as well their correlation in predicting the risk of left ventricular hypertrophy (LVH) in children and adolescents with arterial hypertension (AH).
 Methods: We studied 118 children and adolescents, M±m 15.51±0.25 yrs, Boys/Girls – 104/14, with AH: 60 stable, 40 labile, 18 prehypertension (high-normal blood pressure), and a control group of 13 normotensive children, M±m 15,19±0,41 yrs, Boys/Girls – 10/3. All patients underwent a comprehensive anamnestic, clinical, laboratory, and instrumental examination, including 24-hr ABPM; indicators were standardized by gender and age. On Doppler echocardiography (echoCG), the left ventricular myocardial mass index (LVMI) was calculated. Lipid spectrum parameters were determined by biochemical method, venous blood glycemia by GOD-PAP, blood serum basal immunoreactive insulin by ELISA methods, insulin resistance (IR) by HOMA parameters calculation. Statistical processing was performed using the package of statistical analysis software STATISTICA.
 Results: Of a range of metabolism indicators, BMI, TG level, LDL/HDL ratio, HOMA index, 24-hr DBP index, and the stable character of AH identified as the most significant factors in predicting the risk of LVH in hypertensive children. All multivariate models of logistic regressions, which include BMI, can predict the probability of LVH with an accuracy of 79.7-84.7%, sensitivity - 57.5-77.5%, specificity - 86.4-91.0%.
 Conclusions: Obtained satisfactory concordance of the actual data with predictive models' results indicate the possibility of their use to predict the risk of LVH in children and adolescents with AH.
Highlights
The current worldwide epidemic of cardiovascular disease has, on its basis, far not least, the increasing prevalence of arterial hypertension (AH) in children and adolescents [1,2,3]
Our study aimed to identify risk factors associated with left ventricular hypertrophy (LVH) and investigate the significance of 24-hr ambulatory blood pressure monitoring (ABPM) data and metabolism indicators and their correlation in predicting the risk of LVH in children and adolescents with hypertension (AH)
When analyzing the ABPM data, the following quantitative parameters assessed for 24 hours: the average daily, maximum, and minimum values of blood pressure (BP) systolic (SBP), diastolic (DBP), mean arterial pressure (MAP), pulse BP (PBP), heart rate (HR), load indices related to increased systolic and diastolic BP in the daytime and at night [15,16]
Summary
The current worldwide epidemic of cardiovascular disease has, on its basis, far not least, the increasing prevalence of arterial hypertension (AH) in children and adolescents [1,2,3]. Due to the high adaptive and compensatory characteristics of the pediatric patient organism, the clinical manifestations of the developing disease may be subtle and lag behind the appearance of pathological morphological changes, which can be detected only with additional instrumental studies [11,12,13,14]. To solve this problem is necessary to have.
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