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Medical devices for the diagnosis and treatment of obstructive sleep apnea.

Cistulli PA, Grunstein RR

Royal North Shore Hospital, Department of Respiratory Medicine, St Leonards, NSW 2065, Australia. cistullip@med.usyd.edu.au

Obstructive sleep apnea is increasingly being recognized as a serious public health problem, and is characterized by repetitive, complete or partial closure of the upper airway during sleep, resulting in sleep fragmentation and oxygen desaturation. The key symptoms of obstructive sleep apnea are snoring, witnessed apneas, excessive daytime sleepiness and deficits in neurocognitive function, adversely impacting on quality of life. The last 10 years have seen a steady increase in evidence linking obstructive sleep apnea to long-term cardiovascular morbidity, including hypertension, myocardial infarction and stroke, and an increased risk of motor vehicle accidents. The discovery of continuous positive airway pressure treatment, and the resultant recognition of the high prevalence of snoring and obstructive sleep apnea, and their impact on health, has spawned a new and rapidly growing global industry. Whilst diagnostic technologic advancements have evolved relatively rapidly, many questions relating to the use of such devices in clinical practice remain unresolved. Similarly, on the therapeutic front, advances in continuous positive airway pressure technology have broadened the use of such treatment, although compliance remains an important impediment to widespread treatment of this common disorder. This has prompted a search for simpler treatment alternatives, ranging from surgical, medical and dental therapies, although none have matched the efficacy of continuous positive airway pressure. Advances in our understanding of the neurobiology of sleep and respiration herald the prospect of pharmacologic treatment in the longer term.

Published 21 November 2005 in Expert Rev Med Devices, 2(6): 749-63.
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