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Update in obstructive sleep apnea syndrome in children
Aracy P S Balbani1, Silke A T Weber, Jair C Montovani
1Medical School of Botucatu, UNESP. a_balbani@hotmail.com
Insights
Pediatric obstructive sleep apnea syndrome (OSAS) affects 0.7-3% of children, often caused by adenotonsillar hypertrophy. Diagnosis involves polysomnography, with treatments including surgery or CPAP.
Area of Science:
- Pediatric Pulmonology
- Sleep Medicine
- Otolaryngology
Background:
- Obstructive Sleep Apnea Syndrome (OSAS) in children is a significant health concern, affecting 0.7-3% with a peak in preschoolers.
- It involves upper airway obstruction during sleep, leading to intermittent hypoxia.
- Risk factors include anatomical issues like adenotonsillar hypertrophy and functional factors such as neuromuscular diseases.
Purpose of the Study:
- To outline the epidemiology, clinical presentation, diagnostic methods, and treatment options for pediatric OSAS.
- To differentiate pediatric OSAS characteristics from adult Obstructive Sleep Apnea Syndrome (OSAS).
Main Methods:
- Review of current literature on pediatric OSAS.
- Discussion of diagnostic tools including nocturnal pulse oximetry, audio/videotape recording, nap polysomnography, and gold-standard overnight polysomnography.
- Analysis of treatment modalities: surgical (adenotonsillectomy, craniofacial correction, tracheostomy) and clinical (sleep hygiene, CPAP).
Main Results:
- Adenotonsillar hypertrophy is the primary cause of OSAS in children.
- Common symptoms include snoring, respiratory pauses, restless sleep, and mouth breathing.
- Children with OSAS exhibit distinct patterns compared to adults, such as more REM sleep events and significant desaturation even with short apneas.
Conclusions:
- Early diagnosis and intervention are crucial for managing pediatric OSAS.
- Treatment strategies should be individualized based on the child's specific condition, ranging from surgical to conservative management.
- Understanding the unique features of pediatric OSAS is vital for effective clinical management and improved patient outcomes.
Abstract:
The prevalence of OSAS in children is 0.7-3%, with peak incidence in pre-schoolers. It is characterised by partial or complete upper airway obstruction during sleep, causing intermittent hypoxia. Both anatomical (severe nasal obstruction, craniofacial anomalies, hypertrophy of the pharyngeal lymphoid tissue, laryngeal anomalies, etc.) and functional factors (neuromuscular diseases) predispose to OSAS during childhood. The main cause of OSAS in children in adenotonsillar hypertrophy. The most common clinical manifestations of OSAS are: nocturnal snoring, respiratory pauses, restless sleep and mouth breathing. Nocturnal pulse oximetry, nocturnal noise audio/videotape recording and nap polysomnography are useful tools for screening suspected cases of OSAS in children, and the gold-standard for diagnosis is overnight polysomnography in the sleep laboratory. On the contrary of SAOS adults, children usually present: less arousals associated to apnea events, more numerous apneas/hypopneas during REM sleep, and more significant oxyhemoglobin desaturation even in short apneas. The treatment of OSAS may be surgical (adenotonsillectomy, craniofacial abnormalities correction, tracheostomy) or clinical (sleep hygiene, continuous positive airway pressure--CPAP).
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