Sleep Studies

A polysomnogram is a sleep study used to measure and evaluate physical factors affecting sleep. It is commonly used to diagnose RLS (restless leg syndrome), PLMD (periodic limb movement disorder) and OSA (sleep apnea).

All sleep studies take place during evening hours.

During your visit, you are assigned a private testing area. UC Sleep Center provides professionally decorated private suites with a large comfortable bed, adjoining bath, large television and other hotel-like amenities. We also have a large livingroom-like lounge for relaxing, reading and watching television.

Once you are in your night clothes, a polysomnographic technician will attach small electrodes or sensors to parts of your body and head. These sensors are removed easily and painlessly. While you are asleep, the sensors monitor various physical activities, including:

Brain activity Airflow Neutral area Rapid eye movements Breathing Muscle tone Heart rate Oxygen level Leg movement Body position Movement

Patients are also videotaped using high-quality digital video equipment to chart sleep stages and other measurements. In the morning, patients return to normal daily activities. A follow-up visit is scheduled with the physician to review test results and discuss treatment options.

MSLT measures daytime sleepiness through a series of naps at two-hour intervals. MSLT is used to aid in the diagnosis of narcolepsy or excessive daytime sleepiness. Testing begins in the morning and usually continues through the afternoon. Patients sleep in a private room with an adjoining bath. Electrodes are applied under the patient's eyes and on the chin and shoulders. The electrodes record brain waves, heart rate, muscle activity and eye movements.

Obstructive Sleep Apnea Treatment

CPAP (continuous positive airway pressure) is the most common therapy used to treat obstructive sleep apnea. During this highly effective therapy, the sleeping patient wears a small mask over the nose. A gentle flow of compressed air forces air through the nasal passages and into the throat. The pressure holds the throat open, allowing normal sleep and breathing. With CPAP therapy, normal breathing patterns are restored and snoring stops. Restful sleep is restored and the patient's quality of life is improved.