Main consequences of hypoxia and hypercapnia include increased of sympathetic tone and sympathetic responsiveness as well as sympathetic-parasympathetic imbalance. There is also evidence that OSA alters heart rate response and systemic blood pressure, which can contribute to cardiovascular morbidities when adults. HRV represents the oscilations of heart rate (HR) and it's considered a measure of neurocardiac function that reflects ANS dynamics. 7 Some pathologies, such as respiratory and cardiovascular diseases, shows lower HRV pattern, which is consistent with and abnormal adaptability of ANS, whereas healthy individuals exhibit higher HRV indices meaning an ANS adaptable and dynamically responsive to change. To address this issue, the aim of this study was to review whether heart rate variability was altered in children with obstructive sleep apnea.
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Vanessa Cristina Cunha Sequeira (2020) studied this question.
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