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Old 05-29-2009, 01:16 PM   #1
saucywench
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Default Study finds sleep apnea widely undiagnosed among obese type 2 diabetics

MORE THAN A BAD NIGHT'S SLEEP

Study finds sleep apnea widely undiagnosed among obese type 2 diabetics


May 21, 2009
CONTACT: Renee Cree, renee.cree@temple.edu
215-707-1583

Sleep apnea has long been known to be associated with obesity. But a new study published in the June issue of Diabetes Care finds that the disorder is widely undiagnosed among obese individuals with type 2 diabetes: nearly 87 percent of participants reported symptoms, but were never diagnosed.

For those with untreated sleep apnea, the problem is worse than just interrupted sleep; existing research shows that the condition also increases the risk of heart disease and stroke.

“The high prevalence of undiagnosed, and therefore untreated, sleep apnea among obese patients with diabetes constitutes a serious public health problem,” said Gary Foster, PhD, lead author and Director of the Center for Obesity Research and Education at Temple University.

The new study, called Sleep AHEAD, looked at 306 obese patients with type 2 diabetes already enrolled in the Look AHEAD trial. The ongoing 16-site study investigates the long-term health impact of an intensive lifestyle intervention in 5,145 overweight or obese adults with type 2 diabetes.

Each participant had a sleep study (polysomnogram) that measures various breathing and brain activity during sleep. Participants also answered a series of questions about symptoms related to sleep (snoring, sleepiness during the day), and had their weight, height, waist and neck circumferences measured.

Researchers found that 86.6 percent of participants had sleep apnea, yet reported never being diagnosed. More than 30 percent of these had between 16 and 20 episodes per hour during which they would stop breathing, and 22 percent had more than 30 episodes per hour — considered severe sleep apnea. Most of these also had a larger waist circumference, which researchers found, along with higher BMI, to be significantly associated with sleep apnea.

Obesity has long been known to be associated with sleep apnea, but researchers say that these findings are alarming.

“Doctors who have obese patients with type 2 diabetes need to be aware of the possibility of sleep apnea, even if no symptoms are present, especially in cases where the patient has a high BMI or waist circumference,” said Foster.

Currently, more than half of obese or overweight individuals have diabetes, the seventh leading cause of death in the United States.

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http://www.temple.edu/medicine/bad_nights_sleep.htm
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