Sleep Apnea Device May Help Save Heart

A device that treats a common sleep disorder called
obstructive sleep apnea may help prevent heart attacks, strokes, and other
cardiovascular problems, a new study shows.

Obstructive sleep apnea is a very serious condition in which people have
trouble breathing during sleep because their airway is blocked. They may have
very shallow breath or even stop breathing briefly several times per night.

A device called CPAP (continuous positive airway pressure) helps people with
obstructive sleep apnea breathe more easily during sleep.

The new study comes from German doctors including Nikolaus Buchner, MD, of
Germany's Ruhr University Bochum.

They already knew that CPAP may reduce heart risks in people with severe
obstructive sleep apnea. Buchner's team wanted to see if that's also true for
people with milder obstructive sleep apnea.

CPAP Study

Buchner and colleagues offered CPAP machines to 449 adults with mild,
moderate, or severe obstructive sleep apnea. All but 85 patients accepted the
devices.

The patients, who got regular checkups, were typically followed for about
six years.

Those who accepted CPAP were 64%
less likely to have certain fatal or nonfatal cardiovascular problems --
including heart attacks and strokes --B during the study period, regardless
of their age, BMI (body mass index), type 2 diabetes, cholesterol, and history
of heart disease.

Buchner and colleagues note that their findings may not apply to everyone
with obstructive sleep apnea.

However, the researchers write that therapy for obstructive sleep apnea
"should be considered" even for mild forms of obstructive sleep
apnea.

The study appears in an advance online edition of the American Journal of
Respiratory and Critical Care Medicine.

By Miranda Hitti
Reviewed by Louise Chang
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