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Doctor insights on: Why Do They Monitor Your Heart During A Sleep Study

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Why do they monitor your heart during a sleep study?

Why do they monitor your heart during a sleep study?

Sleep study: Many sleep problems increase your adrenergic tone and in response body will also increase parasympathetic tone and both of these can cause trouble with your heart rhythm. Also if there is a severe sleep abnormality or due to other medical conditions your oxygen drops during sleep that can affect the heart rhythm ..... So heart monitor signal gives us this information. ...Read more

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Dr. Heidi Fowler
346 doctors shared insights

Sleep Study (Definition)

An overnight recording of a persons sleep including sleep stages, time awake vs. Asleep, oxygen saturation, blood pressure, breathing effort, snoring, arousals and leg movements. Conducted in a sleep center is considered an attended study and at home it is considered an unattended study. At home studies do not record as much information as an attended study ...Read more


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Would you do a heart caterazation when your sleep study said oxygen dips 3 times in on study andecho shows a spot on artic vavle?

Would you do a heart caterazation when your sleep study said oxygen dips 3 times in on study andecho shows a spot on artic vavle?

Yes: In this case likely a right heart cath, but could be right and left. Helps with making a diagnosis (e.g. Pulmonary hypertension). It also guides therapy. ...Read more

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My son did a sleep study at home and it only worked for less than to hours. His oxygen went down to 95 and his heart rate was 100. Is that ok?

My son did a sleep study at home and it only worked for less than to hours. His oxygen went down to 95 and his heart rate was 100. Is that ok?

Sleep study: Unfortunately only 2 hours is NOT enough data to make a conclusion about sleep apnea. The 95 % on his oxygen is still within the normal limits as was his heart rate. What was the reason for the test only recording 2 hours of data?? I would repeat the test either at home or in a sleep lab if it was an equipment issue. ...Read more

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I Had a sleep study last night with CPAP and have been experiencing heart palpitations most of the day. Can initial CPAP cause Vagus nerve irritation?

I Had a sleep study last night with CPAP and have been experiencing heart palpitations most of the day.  Can initial CPAP cause Vagus nerve irritation?

Typically no: That does not usually happen. It can trigger changes in your level of carbon dioxide since with apnea you tend to retain more and CPAP will force you to blow that out. If this is persistent go get an EKG. Heart arrhythmia is common in apnea including heart block, PVCs and atrial fibrillation. Some can be dangerous. ...Read more

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Is lower heart rate, the lowest was 37bpm during sleep, (recorded on holter monitor), any danger? I am 33 male, 183cm 92kg. Have b12 defficiency, D defficiency and chronic sinusitis.

Is lower heart rate, the lowest was 37bpm during sleep, (recorded on holter monitor), any danger? I am 33 male, 183cm 92kg. Have b12 defficiency, D defficiency and chronic sinusitis.

How do you FEEL?: If you're an athlete and not having spells where you pass out, this is fine and you should be proud of it. If you have other evidence of heart pathology, it's your physician's decision whether to have you worked up for some obscure illness. If your B12 and D deficiencies are due to vegetarianism, please begin supplementing; if not, try to find the cause and supplement appropriately. ...Read more

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Waking up with arrhythmia/heart racing / sweating. Could it be sleep apnea? If so what can I do to fix it without a sleep study? I'm only 23

Waking up with arrhythmia/heart racing / sweating. Could it be sleep apnea? If so what can I do to fix it without a sleep study? I'm only 23

Sleep apnea: If you are overweight, losing weight not only reduces pressure on the airways, the tongue shrinks in size, further opening the airway. Don't sleep on your back ( sew a pocket in a t-shirt and put a tennis ball in it ). See an ENT to make sure that there isn't a problem with deviated septum, tonsils or adenoids. Use breathe rite strips. See a dentist to have a custom sleep device made. ...Read more

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Can sleep problems cause chronic chest muscle pain?I snore very badly. I am waiting on results from sleep study. All heart tests are normal. Thanks.

I expect so: I'm glad your heart work-up was normal and that you'll be treated for whatever the sleep study finds. It's a prime suspect for the soreness and you'll discover that soon if it is guilty. Consider a carefully planned exercise program to develop your chest muscles with the guidance of the sleep team. I believe they'll know of a good one. Best! ...Read more

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Waking up once a month with heart pounding & arm numbness? Heart test fine at mayo.sleep study normal at mayo?brain MRI norm? Goes away within 5minute

Waking up once a month with heart pounding & arm numbness? Heart test fine at mayo.sleep study normal at mayo?brain MRI norm? Goes away within 5minute

Holter?: Waking up with arm numbness that resolves in a few minutes is a common and normal occurrence. It's due to compression neuropathy from positioning during sleep. Getting up and moving around relieves it. For your heart pounding, ask to wear a 24 hour Holter (heart) monitor to see what your heart is doing when you awaken. Many people have a.m. anxiety which results in fast but normal HR till calm. ...Read more

Dr. Heidi Fowler
4,876 doctors shared insights

Sleep (Definition)

Sleep is a topic that involves concepts such as how long it takes to fall asleep, how many times one wakes up at night, how many hours one sleeps at night, sleep stages, ...Read more