COMPARATIVE ANALYSIS OF BRAIN BIOELECTRICAL ACTIVITY AND CIRCULATORY SUPPLY IN ADOLESCENTS WITH ACUTE HYPOXIA

A. Ivanov, I. Borukaeva, Z. Abazova, A. Molov, T. B. Kipkeeva, A. G. Shokueva, Kazbek Yur'evich Shkhagumov
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Abstract

Brain bioelectrical activity and the degree of cerebral blood supply directly determine physiological brain activity. There is insufficient evidence on the regularity and continuity of these processes. The aim of the study is to conduct a comparative analysis of brain bioelectrical activity and circulatory supply in adolescents with acute hypoxia. Materials and Methods. The authors examined 100 adolescent males of two age groups: Group 1 consisted of boys aged 12–14 years old, Group 2 included those aged 15–17. Results. The authors revealed a positive correlation between blood supply, metabolism and brain function. In early pubertal adolescents, puberty-associated endocrine changes have a significant effect on EEG and REG indices in adolescents with hypoxia. An increase in the rheographic index is accompanied by an increase in the alpha- and a decrease in the delta-rhythm indices. In pubertal adolescents, an increase in the rheographic index causes a decrease in alpha rhythm and an increase in slow-wave delta oscillations in the frontal and occipital leads. Under short-term hypoxia, an increase in the brain filling with blood is observed. Under oxygen depletion (14%), despite the increase in pulmonary and blood minute volumes, tissue hypoxia develops in pubertal adolescents. It is especially evident in the early puberty, as there is even a decrease in oxygen consumption in adolescents aged 12–14. In adolescents with hypoxia cerebral blood flow increases.
青少年急性缺氧脑生物电活动与循环供应的比较分析
脑生物电活动和脑血供程度直接决定脑的生理活动。关于这些过程的规律性和连续性的证据不足。本研究的目的是对急性缺氧青少年的脑生物电活动和循环供应进行比较分析。材料与方法。作者调查了两个年龄组的100名青少年男性:第一组包括12-14岁的男孩,第二组包括15-17岁的男孩。结果。作者揭示了血液供应、新陈代谢和脑功能之间的正相关关系。在青春期早期,青春期相关内分泌变化对缺氧青少年的EEG和REG指标有显著影响。流变指数的升高伴随着α -节律指数的升高和δ节律指数的降低。在青春期的青少年中,流变指数的增加会导致α节律的降低和额叶和枕叶导联中慢波δ振荡的增加。在短期缺氧下,观察到脑充血量增加。在缺氧状态下(14%),尽管肺和血分容量增加,但在青春期青少年出现组织缺氧。这在青春期早期尤其明显,因为在12-14岁的青少年中,耗氧量甚至会减少。青少年缺氧时脑血流量增加。
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