Understanding Sleep Disordered Breathing

Understanding Sleep Disordered Breathing

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understanding sleep disordered breathing a good night’s sleep is essential for
your health and well-being sleep is a time of restoration for your body while you sleep your cells are awake
repairing themselves sleep disordered breathing or SDB is one
of the main causes of poor sleep ResMed has created this presentation
to help you understand more about the common types of SDB events what these are how they occur and what
effects they may have on your health breathing brings air into the lungs so
that oxygen can be transported throughout the body via the bloodstream oxygen is vital for organ function and
general health and well-being if you have SDB air flow to your lungs
periodically decreases while you sleep changes in the upper airway are the most
common cause of reduced air flow if you have SDB the patency or openness of
your upper airway keeps changing as you sleep it may be fully open it may be narrowed
to some extent which we call flow limitation it made by break which include his
snoring or it may be completely blocked this is called obstructive sleep apnea
or OSA during this presentation you will be
able to see and hear how these changes affect your body but first let’s take closer look at normal breathing normal
breathing during sleep occurs in a familiar regular cycle its
characteristics can be monitored in a sleep clinic. the technician usually attaches various
sensors to the body these help monitor air flow through the
upper airway respiratory effort audible noise, heart rate oxygen level in the
blood and electrical activity in the brain the signals you will see and the sounds
you will hear during this presentation I like the ones used to assess your
breathing during a sleep study when you drift off to sleep most of the muscles
in your body relax however there are exceptions such as the
diaphragm and to a lesser extent the dilator muscles which control the tongue
and soft palate the diaphragm is assisting our simulated model to breathe
normally the dilator muscles too are at work holding the upper airway fully open as
air flows freely and evenly into and out of the lungs a typical bell-shaped curve of the
airflow is seen the air flows because of the bellows effect of the diaphragm
muscle which sucks air into the lungs the respiratory bands attached to the
chest and abdomen are measuring the effort required to breathe they produce two traces which rise and
fall along with the airflow trace notice how the air flow and breathing if
it traces move in sync you can actually hear these correspond
to the sounds of our model breathing in and breathing out normally
when you were sleeping normally your heart rate is stable the oxygen level in your blood remains
high keeping up a normal supply to all your organs as this EEG trace shows
brain wave activity is as it should be during normal sleep normal breathing provides adequate
oxygen supply so that all the organs can function effectively you move naturally
through the different stages of sleep and get a good night’s sleep you awake refreshed in the morning and
are more likely to remain energetic during the day Flow limitation what is really happening for those who have SDB the muscles in
the upper airway begin to relax during sleep and the tongue and soft palate move closer to the back of the airway
this usually occurs if you are lying on your back or side due to the force of
gravity as the airway gradually narrows it limits the rate at which air can pass
through we call this flow limitation the air
flow curve now has a characteristic chair like shape the middle of the curve
looks flatter than it does for normal breathing the flow at this point is
being limited by the restricted air way as these breathing if it traces show our
model is working harder to breathe despite the flow limitation the sounds
of breathing are still fairly normal from breath to breath as flow limitation
continues the oxygen level in the blood remains quite steady and the heart rate
remains fairly stable at some point the increased work of breathing against flow
limitation may lead to an arousal and arousal is a disturbance in the sleep
cycle this may be accompanied by some movement
there is a visible increasing in brain wave activity and heart rate each
arousal has a powerful effect on your body on arousal our model quickly takes a few
deep breaths as muscle tone returns to the tongue and soft palate the airway
opens the airflow trace returns to the normal bell shape although and amplified
one this flow limitation arousal sequence
may occur several times every hour although they may not be much change in
the sounds of your breathing your partner may notice you tossing and
turning restlessly you may wake up feeling tired the effect on your body is strong enough
to disturb your sleep and prevent you from getting the real risk you need in
order to be healthy Flow limitation with snoring what is really happening in many people
with ASD be snoring may occur along with flow limitation as the muscles in the
upper airway relax the soft tissue begins to vibrate when
you breathe this creates the audible sound of
snoring the tendency to snore increases when you sleep on your back it is also affected by other factors
such as taking certain medication like sedatives consuming alcohol for general
tiredness notice the turbulence on the air flow curve breath by breath the frequency of the other airway
vibration increases along with the loudness of the snoring snoring also
increases the effort required to breathe and it can be rather noisy flow
limitation with snoring often leads to arousal and we see why such disturbance
during sleep is a matter of concern it has a significant visible and
measurable impact on your heart rate and brain wave activity on arousal our model
rapidly takes a few deep breaths as he does so the various characteristics
begin to normalize again whenever an arousal occurs to restore normal
breathing it interrupts your sleep because of the noise that our company’s
snoring most partners really can identify this type of sleep sleep-disordered breathing Apnea what is really happening when the airflow drops
to below fifty percent of normal this is known as a hypopnea if you have SDB the amount of flow
limitation you experience with or without snoring varies continuously
during the night as the muscles in the upper airway start to relax the saction
affect reach in the breath tends to draw the soft tissues down towards the
back of the airway over a series of breaths the airway progressively narrows
and the air flow decreases there are times when air flow stops
completely because the airway is blocked this is known as an apnea air supply to
the lungs is interrupted during a apnea our model shows obvious signs of an
apnea event the airflow trace changes to a horizontal line for the length of time
that the apnea persists this demonstrates that there is
absolutely no air flow as our model struggles to get here through the
collapsed airway there is no noise at all which is a
particularly dramatic change if the apnea follows snoring our model has
stopped breathing near can continue for 10 seconds or more
and in severe cases for up to a minute or longer during this time the heart rate dropped
significantly so does the level of oxygen in the blood since no fresh air into the lungs to
replenish the depleting oxygen the brain soon realizes that the body is
struggling that is why an apnea always triggers a
strong arousal with severe effects on the body our model gasps for air using a certain
brain activity increases significantly the heart rate after arousal is almost
double what it was during the apnea models rapid breathing increases the air
flow and the blood oxygen level begins to rise again the tongue and soft palate quickly
return to their normal position as the airway opens fully the air flow curve
returns to the normal bell shape with every arousel your body may move to
another position in the bed but you will probably not remember waking up even if arousal occur hundreds of times
each night your partner is likely to notice your
apneas and arousal mainly together with snoring him or her awake, apnea and arousal cycles
produce significant stresses to your body as you have seen apneas cause
depletion of oxygen supply to vital organs including the brain arousal
literally jumped the cardiovascular system people with severe sleep
disordered breathing have poor quality of sleep they may really experienced the normal
sequence of light and deep sleep stages which are necessary for healthy sleep generally people who have SDB are often
excessively sleepy during the day they easily fall asleep at work while driving
a car talking reading or watching television sleep deprivation can make them
especially irritable researchers has shown that untreated SDB
may also have other more serious consequences such as high blood pressure
serious heart conditions sexual problems impaired memory, impaired concentration,
intellectual deterioration, depression morning headaches and accidents due to
sleepiness and fatigue the good news is that it is possible to
effectively treat SDB be in order to get healthy sleep and enjoy a healthier life

30 thoughts on “Understanding Sleep Disordered Breathing”

  1. Was this video done using a computer simulator because I really REALLY need to know. This is a very important question. PLEASE RESPOND. PLEASEEEE!!

  2. Normally when we sleep, the throat muscles keep our airway open so we can breathe in plenty of oxygen. When people suffer from sleep apnea, the airway narrows dangerously either because the throat muscles relax too much, the tongue and tonsils are too large in relation to the windpipe, or extra tissue from being overweight thickens the windpipe wall, narrowing the airway.

  3. There are many factors in sleep apnea treatment. One plan I discovered which successfully combines these is the Stans Slumber Method (google it if you're interested) definately the most useful remedy that I've seen.look at the interesting information .

  4. There are a few factors in curing sleep apnea. One plan I found that succeeds in merging these is the Stans Slumber Method (googIe it if you're interested) definately the most helpful resource i've seen.look at the extraordinary info .

  5. Great Illustration and explaination! I just took a sleep study and they told me that I had a lot of apnea episodes through the night. But this really helps me to understand better what is happening.

  6. I think this video is wonderful! The only thing is, I think more focus should be placed on Centrally Related Sleep Apnea. Whilst it's not as common as Obstructive, It is in some ways worse, because in this form of sleep Disordered Breathing, SDB, the patient does not even attempt to breathe. They stop breathing, and it's because for some reason that the brain actually stops telling the patient to breathe. This is VERY SERIOUS!!

  7. I didn't understand this video but, is this the thing where you sleep and when it's in the morning you try to breathe but you can't? I really don't want to die : P

  8. does anyone else have issues of removing your cpap mask In your sleep?
    I've gotten used to the air pressure so it doesn't bother me at all now, and I can usually fall asleep fine; BUT, an hr or 2 after I've fallen asleep, I take my mask off, and Don't know I've done it until time for me to get up.
    Arghh! very frustrating!! IF u do have any ideas, suggestions, etc, PLEASE SHARE WITH ME, I'm Sooo tired! LOL
    Thanks a bunch! ;')
    "Pooped in Ga", 😆

  9. the best info that I have had was by using the Stans Slumber Method (i found it on google) definately the most incredible treatment that I have ever followed.

  10. Dr Dana Rockey has some great information on screening for Obstructive Sleep Apnea: https://www.youtube.com/watch?v=6PRAA0c6OvY&list=PL_cs0zrmxr475SJ9Pjh8Nqao8XL957QD0&index=1

  11. This PERFECTLY explained my problem……. For some reason I noticed the past few nights I have been going to bed and after laying down for about 5 minutes my heart starts beating insanely fast and its because I am not breathing enough and I have to start taking in a bunch of air to catch up… Its really making me scared, I thought it was a heart problem because my heart would beat insanely fast and felt like an anxiety attack almost…. My legs started twitching more as well 🙁 I gotta go to the doctor because Im freaking out.

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