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Research Article: Diagnosis of Paediatric Obstructive Sleep-Disordered Breathing beyond Polysomnography

Date Published: 2023-08-01

Abstract:
Obstructive sleep-disordered breathing (SDB) has significant impacts on health, and therefore, a timely and accurate diagnosis is crucial for effective management and intervention. This narrative review provides an overview of the current approaches utilised in the diagnosis of SDB in children. Diagnostic methods for SDB in children involve a combination of clinical assessment, medical history evaluation, questionnaires, and objective measurements. Polysomnography (PSG) is the diagnostic gold standard. It records activity of brain and tibial and submental muscles, heart rhythm, eye movements, oximetry, oronasal airflow, abdominal and chest movements, body position. Despite its accuracy, it is a time-consuming and expensive tool. Respiratory polygraphy instead monitors cardiorespiratory function without simultaneously assessing sleep and wakefulness; it is more affordable than PSG, but few paediatric studies compare these techniques and there is optional recommendation in children. Nocturnal oximetry is a simple and accessible exam that has high predictive value only for children at high risk. The daytime nap PSG, despite the advantage of shorter duration and lower costs, is not accurate for predicting SDB. Few paediatric data support the use of home testing during sleep. Finally, laboratory biomarkers and radiological findings are potentially useful hallmarks of SDB, but further investigations are needed to standardise their use in clinical practice.

Introduction:
Obstructive sleep-disordered breathing (SDB) is a spectrum of different clinical conditions distinguished by upper-airway dysfunction during sleep with snoring and/or increased respiratory effort due to increased upper airway resistance and pharyngeal collapsibility [1]. Obstructive SDB, ranging from primary snoring to obstructive sleep apnoea syndrome (OSAS), has variable severity of intermittent upper airway obstruction that leads to both sleep fragmentation and changes in gas exchange with night-time symptoms,…

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