Dependence of the Thyroid Gland Ultrasound Findings on Somatotypological Parameters in Young Men Living in the Republic of Sakha (Yakutia)

The paper highlights the study results related to the structural features of the thyroid gland (TG) based on ultrasound examination findings and their relationship with somatotypological parameters in young men living in the Republic of Sakha (Yakutia). Since diagnosis of thyroid pathology is associated with ultrasound examination, advanced information about the regional features of the anatomical standad parameters of the thyroid gland remains an acute research and practical issue. The aim of the study was to identify the morphometric parameter features of the thyroid gland during ultrasound scanning and the nature of their relationship with the somatotype in young men living in the Republic of Sakha (Yakutia), indigenous and non-indigenous ethnic groups. Material and methods. The study involved total 195 males, aged 17-21, who were divided into groups depending on indigenous and non-indigenous ethnicity. All subjects underwent anthropometric measurements of 10 parameters, followed by determination of the somatotype according to Heath-Carter. To determine the linear dimensions and volume of the thyroid gland, the ultrasound diagnostic option was used. Results. As stated, representatives of the mesomorphic somatotype predominate among young men of the indigenous ethnic group; representatives of the ectomorphic somatotype predominate among young men of the non-indigenous ethnic group. A comparative analysis of ultrasound morphometry revealed significantly larger values of the total volume of the thyroid gland, due to an increased thickness and volume of the right lobe, as well as the thickness, width and volume of the left lobe in young men of the non-indigenous ethnic group, compared with young men of the indigenous ethnic group. When comparing the thyroid volume with the identified distribution of somatotypes according to Heath-Carter, statistically significant differences were registered in representatives of the mesomorphic somatotype: in young men of the non-indigenous ethnic group, the volume was 2.1 cm3 greater than in young men of the indigenous ethnic group. Conclusion. Thus, the obtained findings related to linear parameters and thyroid volume evidence their relationship with ethnicity and somatotype.