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New research suggests that a consumer smartwatch can help identify adults with moderate-to-severe obstructive sleep apnea, offering a way to screen for a common sleep disorder that often goes undiagnosed.
Results show that the Samsung Galaxy Watch demonstrated high accuracy for detecting moderate-to-severe obstructive sleep apnea among adults aged 22 and older. It correctly distinguished those with moderate-to-severe sleep apnea 94% of the time, with a 94% sensitivity and 67% specificity at its default setting. The device achieved 100% sensitivity and specificity among high-risk individuals with high hypoxic burden, a physiologic marker of low oxygen saturation in the blood.
"Our findings show that consumer smartwatches can make sleep apnea screening more accessible by identifying people at risk for moderate-to-severe obstructive sleep apnea," said principal investigator Dr. Robson Capasso, professor of otolaryngology—head and neck surgery—at Stanford University. "These devices are not diagnostic, but by bringing validated screening into something people already wear every night, we may be able to identify risk earlier and shorten the path to evaluation and to low-risk, well-established therapies such as positive airway pressure and weight management."
According to the American Academy of Sleep Medicine, obstructive sleep apnea is a common and serious sleep disorder in which breathing repeatedly stops or becomes restricted during sleep due to blockage of the upper airway. Untreated sleep apnea is associated with an increased risk of stroke, heart attacks, depression and motor vehicle accidents.
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