Hypopnea

Hypopnea is a condition that describes extremely limited breathing during sleep attributable to a restricted airway. The airway becomes like a crimped hose, restricted but not completely obstructed. As air rushes in, the soft palate, uvula and throat vibrate. This causes snoring. This is problematic because oxygen levels decline, sleep is often interrupted which damages health and well being. The consequence of hypopnea is that the sufferer often awakes fatigued.

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Central Sleep Apnea (CSA)

Central sleep apnea is when the brain stops sending nerve signals to the muscles that control breathing. Patients with Central Sleep Apnea simply stop breathing because the muscles are shut down. Unlike Obstructive Sleep Apnea, with Central Sleep Apnea there is no blockage. Nerve impulses are simply not being sent from the brain to initiate breathing. Central Sleep Apnea is a lack of breathing effort. If you have CSA, don’t worry, the brain can eventually send signals to the muscles. These muscles can be restarted.

Although hypopnea does not involve complete airway obstruction and events of apnea, it is a serious condition and should be treated. 

A proper diagnosis of sleep apnea and which type of sleep apnea you have is essential. An inaccurate diagnosis and the inappropriate and ineffective treatment that results can be dangerous to your health.

 

Upper Airway Resistance Syndrome (UARS)

When the snoring and resistance through the airway is significant enough to disrupt the quality of sleep without apnea events, we call this disorder “Upper Airway Resistance Syndrome” or UARS.

Patients can have both Central Sleep Apnea and Obstructive Sleep Apnea.

Upper Airway Resistance Syndrome is caused by narrow, restricted airway passages. Typically, the airway of a person with UARS is restricted or reduced in size due to certain anatomical features, such as a narrow face, jaw structure and a high vaulted hard palate. This causes breathing to be labored. It’s a little like sleeping every night with a very bad head cold or severe nasal allergies.

The profile of an UARS sufferer:

  • Between the ages of 20 – 50
  • Snoring
  • Extremely sleepy during the day
  • Feeling fatigued and always tired
  • Trouble waking up
  • Reliance on caffeine
  • In good shape and not overweight
  • Trouble breathing through the mouth
  • Sleepiness despite a full night’s sleep

A dental sleep oral appliance can help sufferers of Upper Airway Restriction UARS. Newer dental devices are now being designed with mechanisms to dilate the nasal passages, open the upper airway and improve breathing through the nose. Medication and surgery are sometimes used as treatments for this sleep disorder, but often provide limited and short term benefits.

“Very happy with the appliance. I feel a lot more energetic throughout the day. Waking up in the morning has been a lot easier. Thank you.”

– Matteo A. Gaudio

Insomnia is a prolonged inability to sleep caused by many factors. It’s important to understand that there are many types of insomnia. It’s helpful to divide insomnia into four major categories:

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Primary Insomnia

Primary insomnia is of psychological origin, and may be acute and transitory or chronic and longstanding. Acute primary insomnia is usually caused by psychological stress and responds to medication, and/or stress management (meditation, biofeedback) and gets better when the acute stress abates. Primary chronic insomnia is often due to long standing depression, anxiety and other psychological or mood disorders.

 

Secondary Insomnia

Secondary insomnia comes as a result of a medical situation of a physical nature. An example of a cause of secondary insomnia would be sleep apnea. There are many other physical causes of insomnia some of which include medication side effects, chronic pain, auto-immune diseases such as Muscular Dystrophy and Multiple Sclerosis, and other medical conditions that can interrupt one’s sleep.

 

Onset Insomnia

Difficulty getting to sleep when first going to bed is called onset insomnia. Usually patents with sleep apnea do not have onset insomnia as they are often very sleepy and fall asleep quickly.

 

Maintenance Insomnia

Maintenance insomnia describes when one falls asleep without difficulty but awakens and is unable to go back to sleep. Maintenance insomnia is very common in patients with sleep apnea. They fall asleep quickly but due to the frequent apnea events, wake up after about 2 – 3 hours and cannot fall back to sleep. Clinical experience reveals that when the sleep apnea is treated, the insomnia improves.

“My sleep has improved!”

– Atiba Wood

Insomnia & the Sleep Adverse Brain

A patient with significant, prolonged untreated sleep apnea can create a sleep adverse brain. When a patient suffers from sleep apnea events, plummeting blood oxygen levels cause the brain to think the body is suffocating. Over time the brain can actually resist sleep contributing to insomnia because the brain develops a type of aversion to sleep.

If insomnia is caused or aggravated by sleep apnea, successful sleep apnea treatment will often improve or eliminate insomnia and its symptoms.

Chronic insomnia can have dramatic implications for your health and wellness. Because insomnia is complicated and can be caused or aggravated by so many factors, it’s important to consult and work closely with your physician.

 

The Edison Dilemma

Thomas Edison’s impact on the world and modern American life has been nothing less than profound. He did more than anyone else to illuminate modern life. Interestingly Edison had very unorthodox sleeping habits. He would often spend days and nights in his lab taking only occasional short naps on a bed he had placed in it. Edison famously called sleep “a criminal waste of time”. Ironically Edison also did more to undermine good sleep. He was an unwitting architect of a modern epidemic, sleep deprivation.

Prior to Edison, our bodies functioned on a natural light/dark sleep cycle known as the Circadian rhythm. When the sun went down, the Pineal gland (located at the base of the brain) was triggered to release Melatonin, a hormone that promotes sleep. Once the light bulb was invented our circadian rhythm was disrupted and we began to “occupy the dark” with activities other than sleep. The availability of light around the clock has disturbed the regulation and release of Melatonin and the sleep it promotes.

Edison created a dilemma faced billions of times a day, go to sleep or watch the late show, text, email, surf the web… Thanks Tom.