Phenotypes of early and favorable vascular aging in young people depending on the risk factors and presence of connective tissue dysplasia

Aim. To study the main risk factors and signs of connective tissue dysplasia (CTD) in young people according  to quartile analysis of cardioankle vascular index (CAVI).

Material and methods. The study involved 243 young people (men, 81; women, 162) aged 18-25 years. All subjects were divided into quartile groups  depending  on CAVI on both sides,  or CAVI-R and CAVI-L, determined  using the VaSera-1500 system (Fucuda Denshia,Japan). According to the latest guidelines, the 4^th  quartile of this distribution among persons  of the same sex and age corresponds to early vascular aging (EVA) syndrome.  The 1^st  quartile corresponds to favorable vascular aging. We analyzed the main RFs and CTD signs in each  of the 4 CAVI quartiles. Data processing  was carried out using the Statistica 10.0 software package (StatSoft Inc,USA).

Results. The minimum and maximum CAVI in the sample were 3,2 and 7,9. The overwhelming majority of studied risk factors in both sexes were not associated with the stiffness. Only body mass and body mass index increasedwith a decrease in vascular stiffness and vice versa. The average number of external stigmas of dysembryogenesis in young people increased from the 1^st  to the 4^th  CAVI quartile, with significant differences in the extreme groups. Such CTD signs as a carpal tunnel syndrome and thumb sign also significantly differed between the 1^st  and 4^th quartiles.

Conclusion. The presented results can be used for prevention among young people to form more individualized programs taking into account a comprehensive assessment of vascular aging phenotype and the level of external stigmatization of each young person.

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