Difference between revisions of "Sleep Apnea"
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=Sleep Symptoms= | =Sleep Symptoms= | ||
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Maybe you’ve heard this story. If you put a healthy frog into a pot of hot water, it will quickly jump out. If you put a frog into a pot of lukewarm water, and very gradually increase the temperature, it will stay in the pot until boiled. In the hot water, the frog noticed instant discomfort and danger and took action. In the tepid water, it was lulled into complacency until unaware or unable to take action. How does this translate to sleep apnea? Have you unconsciously adapted to fatigue and eventually daytime sleepiness because its progression was so long and gradual? Have you found other reasons for fatigue, while making the best of circumstances? Are those reasons valid? You can find out by consulting a physician, taking informal sleep quizzes and, if indicated, getting a sleep study in a sleep lab. When you find the real reason for your fatigue, you can crawl out of the pot to change, improve, or reverse the condition. | Maybe you’ve heard this story. If you put a healthy frog into a pot of hot water, it will quickly jump out. If you put a frog into a pot of lukewarm water, and very gradually increase the temperature, it will stay in the pot until boiled. In the hot water, the frog noticed instant discomfort and danger and took action. In the tepid water, it was lulled into complacency until unaware or unable to take action. How does this translate to sleep apnea? Have you unconsciously adapted to fatigue and eventually daytime sleepiness because its progression was so long and gradual? Have you found other reasons for fatigue, while making the best of circumstances? Are those reasons valid? You can find out by consulting a physician, taking informal sleep quizzes and, if indicated, getting a sleep study in a sleep lab. When you find the real reason for your fatigue, you can crawl out of the pot to change, improve, or reverse the condition. | ||
| − | == | + | =Diagnosing Sleep Apnea= |
| − | + | ==Who can Diagnose Sleep Apnea?== | |
| − | + | ==Visiting the Sleep Lab== | |
| − | + | ===Sleep Study Options=== | |
| − | + | by Mile High Sleeper | |
| − | + | An overnight sleep study in a sleep lab is the gold standard of diagnosis. It’s a very sophisticated way of testing for sleep apnea – obstructive (the most common kind), central (more rare), or mixed or complex – by checking airflow in your throat, snoring, and the effort your chest makes to breathe in various positions and in different stages of sleep. A lab study will also check for Restless Leg Syndrome, the amount of oxygen in your blood, and your heart rate and rhythm. If your doctor orders a sleep study, insurance or Medicare should pay for it. A split night sleep study may cost between $1,500 and $4,000. | |
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| − | |||
| − | |||
| − | |||
| − | |||
| − | + | 1. In the most common, one-night “split study,” half the night is spent measuring your sleep, creating a polysomnogram (PSG) which is later interpreted by a physician. If you seem to have Obstructive Sleep Apnea (OSA), the second half of the night is spent using a CPAP (Continuous Positive Airway Pressure) machine to find the best airflow pressure setting for you. | |
| − | + | Advantages of a split study: lower cost, since it’s only one night. If the sleep technician gives you a mask, you get fast feedback in the middle of the night that you most likely have OSA. Later, upon receiving the report, you have a pressure setting for a doctor’s prescription for a CPAP machine. | |
| − | + | Disadvantages: if you have concerns about falling asleep in a lab setting, or worry about wearing a respiratory mask for the first time, you may not fall asleep or have poor quality sleep, resulting in an inconclusive outcome or poor study. The sleep technician has less time to record your sleep cycles to do the sleep study and less time to find an effective titration setting, a slow trial-and-error process which requires your sleep. | |
| − | |||
| − | + | 2. A second option is a two-night study. It’s the same process as a split study, but a full night is used for each part. The first night is a baseline study of your sleep. The second night is a titration study to establish a CPAP pressure setting. | |
| − | + | Advantages of a two-night study: Alleviates mask fear on the first night since no mask is needed, supporting better sleep and a better study. The technician has plenty of time to record sleep cycles and on the second night, plenty of time to try various pressure settings during the titration. | |
| − | + | Disadvantages: twice the cost of a split study. It will take additional time to schedule the second study and get a pressure setting, which could delay the start of treatment. | |
| − | + | 3. A third option is a single baseline study and use of an APAP machine instead of a titration study to determine pressure settings. After a baseline study report of OSA (the first night), if CPAP seems to be the best treatment, and if you are a candidate for APAP (an Auto-titrating Positive Airway Pressure) machine, you can get a prescription and machine long before a second night study. In fact, with an APAP machine and software and helpful doctor, it may not be necessary to have a second titration study. The APAP machine can be used to determine pressure settings instead of sleep lab titration. Research: | |
| − | |||
| − | + | American Journal of Respiratory and Critical Care Medicine, Can Patients with Obstructive Sleep Apnea Titrate Their Own Continuous Positive Airway Pressure? | |
| + | http://ajrccm.atsjournals.org/cgi/content/full/167/5/716 Quote: Home self-titration of CPAP is as effective as in-laboratory manual titration in the management of patients with OSA. | ||
| − | + | Nonattended home automated continuous positive airway pressure titration: Comparison with polysomnography http://www.sleepsolutions.com/clinical_library/Unattended_auto-CPAP.pdf Quote: Nasal APAP titration in this study correctly identified residual apnea equivalent to the use of PSG. This correct identification allows the physician to accurately access the efficacy of treatment. | |
| − | + | Advantages of a baseline study and APAP: lower cost, since it’s only one night. Alleviates mask fear during the study since no mask is needed, supporting better sleep and a better study. The technician has plenty of time to record your sleep cycles. If you do require a second night titration study, it can still be done later. Requirements: 1) the physician’s decision about the efficacy of auto-titration settings instead of sleep lab titration. 2) prescription of an APAP machine able to record daily details, machine setup manual, and software. 3) physician and patient experimentation to find optimal pressure settings. 4) frequent software downloads by the patient (or a cooperative Durable Medical Equipment /home care provider, DME). None of this is extraordinary; it’s equipment and a feedback process that may be selected by the doctor and patient regardless of type of sleep study. | |
| − | + | The deciding factors among the sleep study options may be a combination of your medical and psychological needs, your physician’s advice and support, and your insurance or Medicare coverage or your ability to pay out-of-pocket for APAP machine software. Discuss your needs with your physician and find out what your insurance company or Medicare supports and requires. Insurance companies tend to pay for a sleep study and CPAP equipment, because it’s more cost effective than paying for treatment of heart failure or stroke, treatment of car wreck injuries, and other serious health conditions resulting from untreated sleep apnea. Medicare usually requires a sleep study before paying for CPAP equipment. Does your insurance company have the same requirement? What impact do your deductible and co-pay have on your costs for various options? If possible, it may be more expedient to avoid scheduling your sleep study during the last quarter of the year, since the sleep lab may be overly busy then because people wait to schedule testing until they have reached their calendar year insurance deductible. However, if sleep apnea is suspected, it’s best to be tested and get your equipment as soon as possible. | |
Revision as of 08:57, 28 October 2009
Contents
Sleep Symptoms
Evaluating Your Sleep - Symptoms by Mile High Sleeper
The symptoms of sleep apnea (stopped or reduced breathing during sleep) can be very subtle and easily attributed to other factors. How can you tell what you do while you’re sleeping? It’s not unusual to be unaware of having sleep apnea, a nighttime respiratory disorder. You probably think you are sleeping well. You may be in denial of the condition and unaware of its serious health risks. Your bed partner or family may be more aware of a potential problem than you are. Fifty percent or more of people with sleep-disordered breathing (SBD) remain undiagnosed. (Carl E Hunt MD p. xi in Johnson’s Sleep Apnea – The Phantom of the Night). Other estimates are that only 5% of people with SBD have been diagnosed. Most physicians do not routinely screen for sleep apnea, and may treat resulting conditions such as high blood pressure or depression, without discovering the root cause - SBD. Most people are unaware of the symptoms and risk factors. What is needed is early detection before heart damage or falling asleep at the wheel.
Untreated sleep apnea can lead to high blood pressure, stroke, heart attack, congestive heart failure, cardiac arrhythmia, depression, glaucoma, obesity, diabetes, and a host of other medical problems. Other risks are driver fatigue, poor judgment, poor memory, and sleepiness leading to car crashes, wrongful death and injury.
The Most Important Symptoms of Sleep Apnea
• loud and frequent snoring (often but not always)
• periods of not breathing (apnea) during sleep, snorting, gasping, or choking during sleep
• need to urinate during the night (nocturia) See http://www.nocturiacures.com/
• high blood pressure
• morning headaches
• awakening tired in the morning, daytime or evening fatigue or lethargy
• daytime or evening sleepiness when sitting or inactive, drowsy driving or falling asleep while driving
• performing actions automatically or by rote, limited attention, memory loss
• poor judgment, personality changes
• weight gain, severe leg swelling
• especially in children, hyperactive behavior.
National Institute of Health sleep apnea links http://www.nlm.nih.gov/medlineplus/sleepapnea.html#cat5
Possible Risk Factors
• decreased size of the airways in the throat, nose, or mouth due to anatomy or allergies. Family history of sleep apnea, large adenoids or large tongue, short lower jaw which causes the tongue to position itself further back in the throat
• overweight with a body mass index (BMI) of 25 or more
• neck size for a man of 17 inches or more or for a woman of 16 inches or more
• male gender, or being a menopausal or postmenopausal woman. Both genders and all ages from infancy onward may have this condition.
• smoking and use of alcohol or sedatives Sources: adapted from the journal Sleep, National Institutes of Health, and James C. O’Brien MD.
More Possible Indicators of Sleep Apnea
• COPD (chronic obstructive pulmonary disease), asthma
• heart abnormalities, stroke
• high blood pressure that doesn’t respond to medication
• acid reflux or GERD
• diabetes
• deviated septum (cartilage separating the nostrils going off midline)
• bruxism (teeth grinding)
• insomnia
• adult bed wetting
• irritability, mood changes, anxiety, depression
• procrastination, difficulty acting on plans or finishing projects, diminished work performance
• social withdrawal, neglected relationships
• less interest in sex, sexual dysfunction
• persistent recurring dreams of struggle and failure
• the ability to fall asleep two or three hours after getting up in the morning, and/or long naps in the afternoon, and/or sleeping nine or more hours a night
Assessment Quizzes
If you suspect a sleep problem, take at the quiz listed below. Quizzes are designed to build awareness and create dialog with your doctor, not to diagnose. Discuss the quiz results and your symptoms with your primary care physician, or a sleep doctor, pulmonologist (breathing specialist), cardiologist, ENT (Ear/Nose/Throat) doctor, or other specialist. If indicated by symptoms, the doctor may suggest a sleep study to rule out sleep apnea or other diagnostic procedures.
A very comprehensive but easy quiz looks at a wide variety of symptoms to help detect sleep apnea in the appendix of Sleep Apnea – The Phantom of the Night , a book by T. Scott Johnson MD, William A. Broughton MD, Jerry Halberstadt, a patient. An online version of this excellent quiz is at http://www.healthyresources.com/sleep/apnea/phantom/orders/quiz.html
Additional Sleep Apnea Assessment Questionnaires can be found here.
The Boiled Frog Analogy
Maybe you’ve heard this story. If you put a healthy frog into a pot of hot water, it will quickly jump out. If you put a frog into a pot of lukewarm water, and very gradually increase the temperature, it will stay in the pot until boiled. In the hot water, the frog noticed instant discomfort and danger and took action. In the tepid water, it was lulled into complacency until unaware or unable to take action. How does this translate to sleep apnea? Have you unconsciously adapted to fatigue and eventually daytime sleepiness because its progression was so long and gradual? Have you found other reasons for fatigue, while making the best of circumstances? Are those reasons valid? You can find out by consulting a physician, taking informal sleep quizzes and, if indicated, getting a sleep study in a sleep lab. When you find the real reason for your fatigue, you can crawl out of the pot to change, improve, or reverse the condition.
Diagnosing Sleep Apnea
Who can Diagnose Sleep Apnea?
Visiting the Sleep Lab
Sleep Study Options
by Mile High Sleeper An overnight sleep study in a sleep lab is the gold standard of diagnosis. It’s a very sophisticated way of testing for sleep apnea – obstructive (the most common kind), central (more rare), or mixed or complex – by checking airflow in your throat, snoring, and the effort your chest makes to breathe in various positions and in different stages of sleep. A lab study will also check for Restless Leg Syndrome, the amount of oxygen in your blood, and your heart rate and rhythm. If your doctor orders a sleep study, insurance or Medicare should pay for it. A split night sleep study may cost between $1,500 and $4,000.
1. In the most common, one-night “split study,” half the night is spent measuring your sleep, creating a polysomnogram (PSG) which is later interpreted by a physician. If you seem to have Obstructive Sleep Apnea (OSA), the second half of the night is spent using a CPAP (Continuous Positive Airway Pressure) machine to find the best airflow pressure setting for you.
Advantages of a split study: lower cost, since it’s only one night. If the sleep technician gives you a mask, you get fast feedback in the middle of the night that you most likely have OSA. Later, upon receiving the report, you have a pressure setting for a doctor’s prescription for a CPAP machine.
Disadvantages: if you have concerns about falling asleep in a lab setting, or worry about wearing a respiratory mask for the first time, you may not fall asleep or have poor quality sleep, resulting in an inconclusive outcome or poor study. The sleep technician has less time to record your sleep cycles to do the sleep study and less time to find an effective titration setting, a slow trial-and-error process which requires your sleep.
2. A second option is a two-night study. It’s the same process as a split study, but a full night is used for each part. The first night is a baseline study of your sleep. The second night is a titration study to establish a CPAP pressure setting.
Advantages of a two-night study: Alleviates mask fear on the first night since no mask is needed, supporting better sleep and a better study. The technician has plenty of time to record sleep cycles and on the second night, plenty of time to try various pressure settings during the titration.
Disadvantages: twice the cost of a split study. It will take additional time to schedule the second study and get a pressure setting, which could delay the start of treatment.
3. A third option is a single baseline study and use of an APAP machine instead of a titration study to determine pressure settings. After a baseline study report of OSA (the first night), if CPAP seems to be the best treatment, and if you are a candidate for APAP (an Auto-titrating Positive Airway Pressure) machine, you can get a prescription and machine long before a second night study. In fact, with an APAP machine and software and helpful doctor, it may not be necessary to have a second titration study. The APAP machine can be used to determine pressure settings instead of sleep lab titration. Research:
American Journal of Respiratory and Critical Care Medicine, Can Patients with Obstructive Sleep Apnea Titrate Their Own Continuous Positive Airway Pressure? http://ajrccm.atsjournals.org/cgi/content/full/167/5/716 Quote: Home self-titration of CPAP is as effective as in-laboratory manual titration in the management of patients with OSA.
Nonattended home automated continuous positive airway pressure titration: Comparison with polysomnography http://www.sleepsolutions.com/clinical_library/Unattended_auto-CPAP.pdf Quote: Nasal APAP titration in this study correctly identified residual apnea equivalent to the use of PSG. This correct identification allows the physician to accurately access the efficacy of treatment.
Advantages of a baseline study and APAP: lower cost, since it’s only one night. Alleviates mask fear during the study since no mask is needed, supporting better sleep and a better study. The technician has plenty of time to record your sleep cycles. If you do require a second night titration study, it can still be done later. Requirements: 1) the physician’s decision about the efficacy of auto-titration settings instead of sleep lab titration. 2) prescription of an APAP machine able to record daily details, machine setup manual, and software. 3) physician and patient experimentation to find optimal pressure settings. 4) frequent software downloads by the patient (or a cooperative Durable Medical Equipment /home care provider, DME). None of this is extraordinary; it’s equipment and a feedback process that may be selected by the doctor and patient regardless of type of sleep study.
The deciding factors among the sleep study options may be a combination of your medical and psychological needs, your physician’s advice and support, and your insurance or Medicare coverage or your ability to pay out-of-pocket for APAP machine software. Discuss your needs with your physician and find out what your insurance company or Medicare supports and requires. Insurance companies tend to pay for a sleep study and CPAP equipment, because it’s more cost effective than paying for treatment of heart failure or stroke, treatment of car wreck injuries, and other serious health conditions resulting from untreated sleep apnea. Medicare usually requires a sleep study before paying for CPAP equipment. Does your insurance company have the same requirement? What impact do your deductible and co-pay have on your costs for various options? If possible, it may be more expedient to avoid scheduling your sleep study during the last quarter of the year, since the sleep lab may be overly busy then because people wait to schedule testing until they have reached their calendar year insurance deductible. However, if sleep apnea is suspected, it’s best to be tested and get your equipment as soon as possible.