TY - JOUR AU - Otmen, M. Ben AU - Nechytailo, Yu.M. PY - 2022/06/23 Y2 - 2024/03/28 TI - Diagnostic value of functional tests in determining the condition of the cardiorespiratory system JF - CHILD`S HEALTH JA - CH VL - 17 IS - 2 SE - Clinical Pediatrics DO - 10.22141/2224-0551.17.2.2022.1501 UR - https://childshealth.zaslavsky.com.ua/index.php/journal/article/view/1501 SP - 95-98 AB - <p><strong>Background.</strong> The purpose was to study the nature of changes in the cardiorespiratory system in the case of short-term hypoxemia during functional tests with breath-holding. <strong>Materials and methods.</strong> The paper presents the results of a survey of school-age children with acute bronchitis with and without obstructive syndrome (60 patients) and a group of healthy children (52 people). Patients underwent pulse oximetry in combination with hypoxic tests for breath-holding with data recording on a computer and performed a Rufier test. <strong>Results.</strong> The severity of bronchitis in patients in the first days was average on the BSS-ped scale — 7.79 ± 0.19 points. The level of blood oxygen saturation was normal (above 95 %), but there was a difference between the groups: in patients with obstructive syndrome it was 98.60 ± 0.04 %, in the absence of this syndrome — 98.80 ± 0.03 %, which was lower than in the control group — 99.00 ± 0.01 % (p &lt; 0.05). Time of breath-holding did not differ significantly between groups, but there was a slight decrease in saturation after them. There was greater reaction to breath-holding on exhalation. Level of oxygenation in patients with bronchitis achieved by increasing heart rate. Due to the phenomena of relative hypoxemia of peripheral tissues during convalescence, there was a decrease in tolerance to physical loading after the Rufier test. <strong>Conclusions.</strong> It is established that even in mild forms of acute bronchitis in children, according to functional tests, there is a decrease in gas exchange reserves, especially in the presence of obstructive syndrome. Compensatory mechanisms to maintain blood saturation are based on increasing systemic blood flow due to increased heart rate.</p> ER -