Why the study?
Heart rate variability may represent the physiologic burden of OSA, prompting evaluation of whether treatment-related effects on HRV in children are causally attributable to improvement in OSA severity.
Does early adenotonsillectomy improve heart rate variability in children with obstructive sleep apnea?
Population
404 children aged 5 to 10 years with OSA
Comparison
Early adenotonsillectomy vs watchful waiting
Design
Secondary analysis of trial outcomes
Authors
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Changes in HRV after early adenotonsillectomy track average heart rate rather than apnea severity in children with OSA; leaves open whether treatment improves autonomic function.
Does early adenotonsillectomy improve heart rate variability in children with obstructive sleep apnea?
In children with obstructive sleep apnea, changes in heart rate variability following early adenotonsillectomy are strongly modulated by average heart rate rather than specific improvements in apnea severity.
Isaiah et al. (2020) studied this question.