Female ; Humans ; Male ; Sleep Apnea, Obstructive ; epidemiology ; Surveys and Questionnaires

Female ; Humans ; Male ; Sleep Apnea, Obstructive ; epidemiology ; Surveys and Questionnaires

INTRODUCTIONObesity affects about 10% to 15% of our school-going population in Singapore and is a risk factor for development of obstructive sleep apnoea hypopnoea syndrome (OSAHS). This article reviews the prevalence, aetiology, pathophysiology, diagnosis, complications and treatment of obese children with OSAHS with particular reference to children in Singapore.

METHODSReview of articles or conference papers reporting data with regards to OSAHS in Singapore children.

RESULTSPrevalence of OSAHS was high in obese children in Singapore and was more common in males with no racial predisposition. Hypersomnolence as a presenting symptom was uncommon. Cognitive function, behaviour, attention and processing speed was affected and improved after intervention. Abnormalities of glucose metabolism were also found with the respiratory disturbance index (RDI) as an independent predictor of insulin resistance. Tonsillectomy and or adenoidectomy was efficacious as treatment and risk of complications was low. No significant increase in weight occurred post intervention in those enrolled in concurrent weight management programmes.

CONCLUSIONSPrevalence of OSAHS is high in obese Singapore children and many are 'asymptomatic'. A low threshold for evaluation is necessary for early diagnosis and intervention for prevention of morbidity. Tonsillectomy and/or adenoidectomy is safe and efficacious and remains the first-line treatment in most obese patients.

Adenoidectomy ; Child ; Diabetes Mellitus ; epidemiology ; Disorders of Excessive Somnolence ; epidemiology ; Humans ; Obesity ; epidemiology ; Prevalence ; Quality of Life ; Singapore ; epidemiology ; Sleep Apnea Syndromes ; epidemiology ; Sleep Apnea, Obstructive ; epidemiology ; physiopathology ; Tonsillectomy

OBJECTIVETo review the current evidence about the prevalence of obstructive sleep apnea in patients with Marfan's syndrome, and discuss some proposed potential mechanisms for this relationship.

DATA SOURCESThe data in this review were mainly from Medline and PubMed articles published in English from 1990 to 2013. The search term was "Marfan's syndrome and sleep apnea".

STUDY SELECTIONClinical evidence about the epidemiology of obstructive sleep apnea in patients with Marfan's syndrome; the mechanism that causes obstructive sleep apnea; interventional therapy for patients with Marfan's syndrome, and coexisting obstructive sleep apnea.

RESULTSA high prevalence of obstructive sleep apnea exists in patients with Marfan's syndrome. The potential reasons are craniofacial abnormalities and lax upper airway muscles, which lead to high nasal airway resistance and upper airway collapse. Obstructive sleep apnea mechanically deteriorates aortic dilatation and accelerates progression of aortic aneurysms. The condition is reversible and rapid maxillary expansion and adequate continuous positive airway pressure therapy are possible effective therapies to delay the expansion of aortic diameter in patients with Marfan's syndrome.

CONCLUSIONSObstructive sleep apnea is strongly associated with Marfan's syndrome. Craniofacial abnormalities and lax upper airway are the main mechanisms. Untreated obstructive sleep apnea accelerates progression of aortic dissection and rupture. Effective therapies for obstructive sleep apnea could postpone the aortic dilatation in patients with Marfan's syndrome.

Humans ; Marfan Syndrome ; epidemiology ; etiology ; Prevalence ; Sleep Apnea, Obstructive ; complications ; epidemiology

China ; epidemiology ; Female ; Humans ; Male ; Prevalence ; Sleep Apnea, Obstructive ; complications ; epidemiology

Child ; China ; epidemiology ; Continuous Positive Airway Pressure ; Humans ; Sleep Apnea, Obstructive ; diagnosis ; epidemiology ; therapy ; Tonsillectomy

Obstructive sleep apnea syndrome (OSAS) is a complicated chronic disease caused by certain reasons, characterized by obstruction of the upper airway and apnea or hypopnea during sleep, which can be followed by anoxia, snoring and daytime sleepiness. Recent studies have shown that hypertension is closely connected to OSAS. OSAS can lead to hypertension by several possible mechanisms. The diagnosis of OSAS mainly depends on the medical history, sign, polysomnogram (PSG) result and the frequency of apnea and hypopnea. OSAS can be relieved by continuous positive airway pressure (CPAP), oral orthodontic treatment, medicine, change of lifestyles and others. This brief review focuses on the mechanism of hypertension due to OSAS and the diagnosis criteria and treatment of OSAS.
Continuous Positive Airway Pressure ; Humans ; Hypertension ; epidemiology ; Polysomnography ; Sleep Apnea, Obstructive ; epidemiology ; Snoring

Prevalence of childhood obesity is progressively increasing, reaching worldwide levels of 5.6% in girls and of 7.8% in boys. This also leads to a corresponding increase in the prevalence of obesity-associated morbidities particularly those involving obstructive sleep apnea（OSA）. Obesity is an independent risk factor and regulator of OSA in children. There is a bidirectional causal relationship between OSA and obesity in children. The factors involved in the association between OSA and obesity are systemic inflammation, oxidative stress, and gut microbiota etc. However, a causal link between obesity-related inflammatory state and OSA pathogenesis still needs to be properly confirmed. The present review aimed to investigate the links between childhood obesity and OSA.
Male ; Female ; Humans ; Child ; Pediatric Obesity/epidemiology* ; Sleep Apnea, Obstructive/epidemiology* ; Risk Factors ; Inflammation

Obstructive sleep apnea (OSA) is one of common sleep disorders in western countries, affecting 4% of males and 2% of females. It is characterized by repeated obstruction of the upper airway during sleep, leading to intermittent hypoxemia, sympathetic activation, and sleep fragmentation. OSA is an independent risk factor for a range of medical problems, including cardiovascular disease, diabetes, depression, and cognitive dysfunctions. The etiology of OSA is complex and incompletely understood, but recent studies have shown that the development of OSA depends on the structure of the airway anatomy, the responsiveness of the upper airway dilator muscle to stimulation, and the stability of the respiratory control system. This review details the epidemiological and experimental evidence surrounding the associations between OSA and chronic diseases. Recent findings on the etiology of OSA will also be discussed.
Anoxia ; Cardiovascular Diseases ; Chronic Disease ; Depression ; Epidemiology* ; Female ; Humans ; Male ; Risk Factors ; Sleep Apnea, Obstructive* ; Sleep Deprivation ; Sleep Wake Disorders

Despite apparent similarities to adult sleep medicine, the disorders of paediatric sleep medicine have a distinct epidemiology and pathophysiology. During childhood, the physiology of sleep develops and matures, resulting in changing patterns of normal behaviours and of sleep disorders. Through a fictional case scenario, this article aims to convey the range and complexity of disorders that may be encountered and the various investigations and treatments available to the paediatric sleep physician.
Asian Continental Ancestry Group ; Child ; Electromyography ; Humans ; Polysomnography ; Sleep Apnea, Obstructive ; diagnosis ; epidemiology ; Snoring ; etiology