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Methodist Sleep Disorders Center
The Science of Sleep Apnea


Dr. Aparajitha Verma
Neurologist
The Methodist Hospital

Ann Alexander wears a special mask at night for obstructive sleep apnea. The mask is connected to a continuous positive airway pressure (CPAP) machine that keeps the airway open with gentle air pressure so she can breathe better. She admits that it looks a little funny, but she is comfortable with the way it feels and happy with the results.

"It's a contraption on your head, and it's not sexy," Alexander says. "But I sleep really well, and my partner also sleeps better now that I'm not snoring all night. I can tell a difference by the way I feel in the mornings. I'm more refreshed when I wake up."

Recognizing Sleep Problems
In many cases it's the partner, or roommate, who is first to notice the classic signs of sleep disorders. Loud snoring, sudden gasps for breath and other abnormal sleep behaviors can affect the quality of sleep for anyone in earshot.

In countless studies, good sleep correlates with good health while poor sleep interferes with daily activities and heightens the risk for developing certain medical conditions.
"Insomnia, obstructive sleep apnea and restless legs syndrome are three common disorders that cause people to lose sleep," says Aparajitha Verma, M.D., medical director of the Methodist Sleep Disorders Center. "The resulting daytime sleepiness and lack of concentration can be exhausting and dangerous, especially while driving or operating equipment."

Verma, who is an assistant professor in the Department of Neurology at the Methodist Neurological Institute, has studied sleep and its associated disorders extensively. She says untreated obstructive sleep apnea can increase the risk for hypertension and early development of diabetes, heart disease and stroke.

Alexander, a retired social worker, didn't notice the signs of her obstructive sleep apnea. It was her partner who encouraged her to seek treatment. "My internist referred me to Dr. Verma for a sleep study at Methodist," Alexander says.

Overnight Sleep Study
A sleep study (also called polysomnogram) measures quality and duration of sleep, including how a person breathes and moves. It can help uncover and identify solutions for sleep-related problems. The patient's state of sleep, oxygen level, breathing effort, airway pressure and physical movements are monitored throughout the night.

Alexander had a positive, comfortable experience at the Methodist Sleep Disorders Center. She says, "I went in at about 8 p.m. and got ready for bed just like I was at a hotel. The technician explained everything and placed electrodes on my head. I watched television and read until I was sleepy. When I woke in the morning, they removed the electrodes, and I got dressed and ready for the day. It was easy."

Defining Sleep Disorders
Insomnia = difficulty falling asleep, staying asleep and/or waking up unrefreshed

Sleep apnea = breathing interruptions during sleep

Restless legs syndrome = tingling or creepy-crawly sensations in the legs, making it difficult to sleep
Treatment for Sleep Apnea
In Alexander's case, Verma recommended a second test with a CPAP machine for obstructive sleep apnea. Gentle pressure blowing through a small mask proved successful in keeping Alexander's airway open throughout the night. A respiratory therapist helped her set up the CPAP at home, and she wears the mask every night.

Other treatments for mild sleep apnea include ear, nose and throat procedures; treatment of nasal allergies and oral devices that move the jaw forward to open the airway.

Help Is Here for You
If you wake up unrefreshed, even after seven to nine hours of sleep, talk to your doctor. He or she may refer you for testing and evaluation.

The Methodist Sleep Disorders Center is accredited by the American Academy of Sleep Medicine, so you can trust that you will receive the most accurate results and quality management of sleep disorders.

To learn more about The Methodist Hospital’s Comprehensive Sleep Disorders Program, visit methodisthealth.com or call 888-781-4186.

< Winter 2009
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