Study: Common sleep apnea treatment may not benefit patients older than 80

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Study: Common sleep apnea treatment may not benefit patients older than 80
Study: Common sleep apnea treatment may not benefit patients older than 80

Continuous positive airway pressure (CPAP) is the treatment of choice for moderate-to-severe obstructive sleep apnea (OSA). But researchers from the University of Missouri School of Medicine have found this treatment may not be as effective in patients older than 80.

Sleep apnea is a sleeping disorder that causes people to stop breathing repeatedly through the night. If left untreated, it can lead to serious health problems, including high blood pressure, heart trouble and even depression or anxiety. CPAP machines treat sleep apnea by delivering a stream of air into a person’s airway through a mask and tube, preventing the airway from collapsing and allowing the person to breathe continuously through sleep. Previous studies have shown that CPAP treatment can significantly reduce sleepiness and depression and guard against high blood pressure.

In this study, researchers studied 369 participants over the age of 70 with OSA and assigned roughly half to receive CPAP therapy for three months. Researchers used several metrics to compare both groups, including a subjective measure of a patient’s sleepiness, the effect of CPAP on sleep-related quality of life, the effect on anxiety and depression and impact on blood pressure levels. They further subdivided the results by those older and younger than 80.

“Our findings suggest that CPAP treatment is not as effective in patients over 80 years of age with OSA when compared to younger patients,” said senior author David Gozal, MD, the Marie M. and Harry L. Smith Endowed Chair of Child Health at the MU School of Medicine. “We did not see any improvements in OSA-related symptoms, quality-of-life metrics, mood-related symptoms or blood pressure compared to the group that did not receive CPAP treatment.”

Gozal said patients over 80 typically have a more sedentary lifestyle, and the presence of other disorders that may also affect the quality or quantity of sleep, but cannot be addressable with CPAP. He also cited other previous studies that suggest that patients older than 80 are less likely to adhere to CPAP therapy long-term.

“Considering the growing population of elderly patients that is being referred for sleep consultation, large clinical trials are urgently needed to try to solve key questions related to the use of CPAP in patients over the age of 75 or 80,” Gozal said. “Those questions include: What type of elderly patient with OSA will benefit from CPAP? Is CPAP a cost-effective treatment for patients in this age group? And once CPAP treatment is initiated, should it last forever?”

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