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The sleep detectives

UCI Health sleep center treats slumber disorders of every stripe

August 23, 2022 | Roy Rivenburg
Sleep medicine expert Dr. Rami Khayat directs the UCI Health sleep center in Newport Beach, where patients are tested to find the cause of their sleep troubles.
Dr. Rami Khayat, medical director of UCI Health Sleep Medicine Services, oversees the sleep lab's eight slumber testing rooms and various programs to diagnose and treat shut-eye disorders. Photos by Steve Zylius / UCI

When the lights go down in the UCI Health sleep center, things can get a little strange. Although some of the overnight patients simply snore like lawnmowers, others sleepwalk, scream or act out dreams by kicking, pedaling and punching.

To diagnose such symptoms, technologists in the Newport Beach lab’s control room observe video feeds from eight high-tech bedrooms and track more than 30 vital signs for each patient, including brainwaves, heart rate, breathing and blood pressure.

“It’s like a biopsy of your sleep,” says Dr. Rami Khayat, medical director of UCI Health Sleep Medicine Services and a nationally recognized leader in the treatment of sleep disorders.

Surprisingly, despite the tangle of wires and electrodes attached to patients’ foreheads, chins, chests and limbs, “people sleep pretty well here,” he says. “We rarely get a study that’s unusable.”

Billed as the only comprehensive academic sleep center in Orange County, the lab also conducts alertness tests for pilots, military personnel, truck drivers, physicians and others whose jobs depend on staying awake.

High-tech tracking

Not everyone with a 40-winks problem needs to stay overnight at the lab.

UCI Health sleep specialist Dr. KyoungBin “Kevin” Im displays one of the breathing masks used to treat sleep apnea.
UCI Health sleep medicine specialist Dr. KyoungBin “Kevin” Im displays a breathing mask that helps patients with sleep apnea.

In cases where the doctors suspect only obstructive apnea — a condition that affects nearly 30% of U.S. adults and about half of the center’s patients — a home monitoring kit analyzes the person’s shut-eye.

Similarly, insomniacs get medical-grade smartwatches that track their vital signs and — unlike consumer wrist gadgets — are backed by peer-reviewed scientific studies, Khayat says.

The resulting data can run hundreds of pages and is manually scrutinized to recommend the best treatment.

More than half of Americans suffer from some sort of sleeping problem, although they may not realize it, says Khayat, a UCI School of Medicine professor of pulmonology and critical care medicine, psychiatry and human behavior.

Left untreated, sleep dysfunction increases the risk of heart attack, stroke, diabetes, dementia and cancer, he adds, not to mention impaired decision-making and driving.

When sleep is a problem

What are the warning signs?

Dr. Rami Khayat and coordinator Alana Sherrill review physiological measurements from an overnight patient at the UCI Health sleep center.
Khayat and sleep center coordinator Alana Sherrill review an overnight patient's physiological activity.

“How do you usually feel when you get up in the morning?” Khayat asks. “If you’re not refreshed, it may indicate a problem. Or if you often get really tired later on, that’s not normal.”

At any age, people should have some energy left in the tank at the end of the day, he says.

For new patients, doctors spend about an hour discussing the person’s sleep environment and routines, checking their airways, reviewing medical records and outlining options.

Overnight tests — either at home or in the lab — are recommended more than half the time, Khayat says.

The center, which opened in 2018, uses state-of-the-art equipment, including technology devised by UC Irvine inventors.

One wireless creation worn like a sock unobtrusively monitors blood pressure and can even predict which apnea patients are more likely to develop heart problems, Khayat says.

Finding the cause

Once a diagnosis is made, treatments range from behavior modifications (“Some problems are self-induced,” Khayat notes) to breathing masks or surgically implantable devices.

Tracking brain waves during sleep
The sleep center is able to monitor brain waves and other physiological activity in sleeping subjects with technology developed at UC Irvine.

Medications are occasionally prescribed, usually for such conditions as narcolepsy, severe insomnia or excessive drowsiness.

But Khayat and fellow specialists prefer to avoid pills and offer one of the few behavioral sleep programs in the area.

For patients with central sleep apnea, a rarer form of apnea, UCI is the only Orange County health system to offer Remede, an FDA-approved nerve stimulator that works sort of like a pacemaker, Khayat says.

Along with treating everything from drowsy driving to excessive nightmares, the center conducts various research projects, including studies on the relationship of slumber to dementia and heart disease.

Some test subjects wear what looks like a swim cap covered with dozens of metal buttons. It’s actually a high-density EEG headpiece that can draw a 3D map of brain activity and predict cognitive impairment.

Looking to the future, Khayat hopes to expand their staff and launch a sleep medicine program at UCI.

“As a society, we’re sleeping less, and disorders are increasing,” he says, so the demand for care is growing. But with only 55% of U.S. medical schools offering training in the field, “There’s a shortage of sleep physicians.”

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