Insomnia includes any combination of difficulty falling asleep, staying asleep, intermittent wakefulness and waking too early.
Heart disease, high blood pressure, erectile dysfunction, memory loss, and depression are strongly linked. Sleep-related breathing disorders are very common in patients with cardiovascular (heart) disease. Obstructive sleep apnea (OSA) affects an estimated 15 million adult Americans and is present in a large proportion of patients with high blood pressure and in those with other cardiovascular disorders, such as coronary artery disease, stroke, and atrial fibrillation.
. If medically necessary, then you may be referred to one of their cardiologists.
Sleep studies will discover if you have a sleep disorder. Treatment can be started during the same study or during follow-up care with our Certified Sleep Specialist. Treatment may include nasal masks, dental appliances, surgery, weight loss, or positional therapy.
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Polysomnography
Polysomnography is a sleep study; a sleep study monitors you as you sleep. Polysomnography is an overnight sleep test designed to simultaneously and continuously monitor normal and abnormal physiological activity during sleep. There are diagnostic polysomnograms and therapeutic polysomnograms.
There are two stages of sleep:
- Rapid eye movement (REM) sleep
- Non-rapid eye movement (NREM) sleep
REM sleep is associated with dreaming. Your body muscles (except your eyes and lungs) do not move during this stage of sleep.
NREM sleep has four stages that can be detected by EEG waves.
REM sleep alternates with NREM sleep approximately every 90 minutes. A person with normal sleep usually has four to five cycles of REM and NREM sleep during a night.
A sleep study measures your sleep cycles and stages by recording the following information:
- Blood oxygen levels
- Body position
- Brain waves (EEG)
- Breathing rate
- Electrical activity of muscles
- Eye movement
- Heart rate
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Prior to Your Study
Bathe and shampoo your hair before you arrive. Bring any medications with you that you normally take before bed. Discontinue any medications that your physician recommends. Avoid napping, caffeine, and alcohol the night of your sleep study. Bring comfortable two-piece clothing to wear.
What to Expect When You Arrive for Your Sleep Study
The technician will measure the dimensions of your head and mark landmarks on your scalp with a pencil. Then, wires with electrodes will be put into place for the EEG. Paste will be applied to each electrode; it serves to keep the wires in place as well as to better conduct the electrical waves of your brain. Some of the wires on the face will be taped in place.
Other items the technician may include are a flat, plastic snore microphone taped to your neck, sticky pads on your chest to monitor your heart rhythm, stretchy cloth belts that go across the chest and stomach to measure breathing and/or sticky pads applied to your shins or forearms to monitor movements (an EMG). All of these wires will be connected to a small movable box.
Finally, just before going to bed, a nasal cannula, which is plastic tubing that sits in the nose, will be applied. It will not give you oxygen, but will measure airflow. Once you feel tired, the technician, who sits in another room, will monitor you as you privately and comfortably sleep.
The next morning, you will be awakened by the technician, equipment will be removed and you may continue your day. The sleep specialist will review all studies; your referring physician will receive your sleep test results, normally within 3 working days.
Professional Drivers and Sleep Studies
The National Transportation Safety Board (NTSB) recommends the use of sleep disorder screening across all modes of transportation, air, rail, marine, and trucking, as part of a long-term effort to significantly reduce the negative effects of fatigue.
According to the National Highway Traffic Safety Administration, "More than 100,000 annual car crashes are attributed to sleep disorders." Studies have shown an increasing prevalence of commercial truck drivers with untreated obstructive sleep apnea, as many as one-third of all professional drivers suffer from this ailment.
The Department of Transportation recommends that physicians actively screen for Obstructive Sleep Apnea Symptoms suggestive of obstructive sleep apnea include:
- Chronic loud snoring
- Witnessed apneas or breathing pauses during sleep
- Daytime sleepiness
Risk factors for obstructive sleep apnea:
- Advancing age
- BMI > or = to 28
- Small jaw
- Large neck size (> 17 inches male; > 15.5 inches female)
- Small airway
- Family history of sleep apnea
Conditions known to be associated with a high risk of obstructive sleep apnea:
- Hypertension or high blood pressure (treated or untreated)
- Type 2 Diabetes (treated or untreated)
- Hypothyroidism (untreated)
Westfield's Sleep Disorders Center will have the driver evaluated and tested within one week.
Our priority is to keep our nation's drivers safe and healthy; Westfield actively works with companies and their drivers to have them tested, insurances approved, and the driver treated for any documented sleep disorder.
For imformation about Westfield Hospital and Tilghman Medical Center's comprehensive
Occupational Health services, contact 610-366-9000, ext. 242 or visit
http://www.tilghmanmc.com/Occupational_Medicine.html
Patient Testimonials
"Great setting and the staff was polite and easy to work with. Kim (the Sleep Tech) followed up with me and offered good advice on the C-PAP machine. ~J. DeLeo, May, 2011
"The staff at the sleep clinic are great. Kim and Jason answered all my questions before we got started. They explained the entire process so that I knew what to expect throughout the night. I would say their bedside manner is second to none. The size of the center allowed for great personal attention. I would recommend Westfield Hospital to anyone. D. Bus, June 2011