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Doctor insights on: Symptoms Of Lack Of Oxygen To The Brain

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What are the effects of lack of oxygen to the brain?

What are the effects of lack of oxygen to the brain?

Stroke or death : If localized area then patient will have stroke but if it's global and for long time then can cause brain death. ...Read more

Hypoxia (Definition)

Hypoxia, is a condition in which the body as a whole or a region of the body is deprived of adequate oxygen supply. It is classified into 4 groups: - hypoxemic - oxygen is low - anemic - decreased ability for hemoglobin to carry oxygen. - ischemic - decreased blood flow. - histotoxic - oxygen is reaching the cells, but the cells are unable to use ...Read more


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How long does it take before brain damage occur from lack of oxygen to the brain?

How long does it take before brain damage occur from lack of oxygen to the brain?

4 minutes or more: In the event of a full blown cardiac arrest there can be brain damage in as little as 4 to 5 minutes without circulation at normal body temperature. If the body had been cooled by submersion in cold water it could be much longer. Less severe lack of oxygen will take longer to produce brain damage. ...Read more

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When I run, after 400m it feels like I get hit in the head by a brick and experience a migraine for a day or 2. Is this due to lack of oxygen to brain?

When I run, after 400m it feels like I get hit in the head by a brick and experience a migraine for a day or 2. Is this due to lack of oxygen to brain?

No: You probably have exertional migraine. Find out what your baseline heart rate and BP is than try a course of a selective Beta blocker like Naldolol, Atenolol or Metoprolol under physician supervision. Hopefully this will get rid of the problem without bottoming out your BP. ...Read more

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How does a lack of oxygen affect the brain?

How does a lack of oxygen affect the brain?

Cerebral anoxia: Confusion or loss of consciousness, dizziness, seizures, coma. Oxygen deprivation to the brain causes brain cells to die within minutes. ...Read more

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Is all death lack of oxygen? Is all brain death lack of oxygen? Can humans die solely from too much oxygen?

Is all death lack of oxygen? Is all brain death lack of oxygen?  Can humans die solely from too much oxygen?

Not for "BrainDeath": Yes lack of oxygen is a cause of brain damage from a variety of causes. One can also have brain death from trauma (head injury). Also metabolic issues such as to low blood sugars.
Also too much oxygen can damage the lung tissue. ...Read more

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Does a catscan show lack of oxygen in brain ?

Does a catscan show lack of oxygen in brain ?

CT scan brain: It can show that if the brain has suffered severe ischemic brain injury. However, in someone who is walking and talking, a ct is very unlikely to show any signs of a slightly diminished delivery of oxygen to the brain. ...Read more

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What are we doing in brain damage by lack of oxygen?

What are we doing in brain damage by lack of oxygen?

Hypoxia/anoxia: A lack or deficit of oxygen to the brain can occur for a variety of reasons. The term for this is hypoxia. Complete lack of oxygen is referred to as anoxia and is more severe. The neurons are particularly sensitive to this lack of oxygen and will die. This then results in the brain damage. In the most severe cirucumstances, this can lead to death of the patient. ...Read more

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Would a lack of oxygen in the brain cause a air hunger feeling?

Would a lack of oxygen in the brain cause a air hunger feeling?

Sure: The body is powerful and when not getting enough air (or oxygen) it will stimulate you to breath more coming from direction of your brain. It can also cause cloudy thinking or headaches. ...Read more

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Mama was in an accident and left brain damaged due to lack of oxygen 2 years ago. Will she ever be mama again?

Mama was in an accident and left brain damaged due to lack of oxygen 2 years ago. Will she ever be mama again?

The chances are poor: After 2 years it is unlikely there will be much further improvement in cerebral function after an anoxic event.However where there's life there's hope. ...Read more

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Can you get brain damage from lack of oxygen fainting?

Can you get brain damage from lack of oxygen fainting?

Generally no: A simple faint restores adequate blood flow to the brain as you become horizontal, and recovery is forthcoming. If you have brain damage from a faint it can be from a near- fatal arrhythmia (such as from long qt syndrome or hypertrophic cardiomyopathy.), or prolonged seizure. A physician can help determine if there is cause for concern. ...Read more

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Can breathing difficulty cause some effect with the brain because of the lack of oxygen?

Can breathing difficulty cause some effect with the brain because of the lack of oxygen?

Depends: Breathing difficulty can be associated with low oxygen delivery to the body and therefore the brain in multiple different conditions. Physicians can evaluate people for decreased oxygen delivery to the body through taking a history of their issues, performing physical exam, measuring oxygen saturation non-invasively as well as through other laboratory and diagnostic evaluation. ...Read more

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Can you get brain damage from lack of oxygen from snoring?

Can you get brain damage from lack of oxygen from snoring?

2 different events: Snoring results from vibration emitted from the upper airways, for instance a sides of the nostrils moving toward the septum during inhalation or more likely from vibration of the soft palate, uvula & perhaps tongue. Snoring is a noise. Its cause is airway obstruction. Severe obstruction blocks oxygen getting into the lung, hence possible brain injury--consider having polysomnogram test. ...Read more

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70% brain damage, not in a single area, due to lack of oxygen (caused by asphyxia), what are the chances to awaken and regain full consciousness?

70% brain damage, not in a single area, due to lack of oxygen (caused by asphyxia), what are the chances to awaken and regain full consciousness?

Unlikely: The extent of brain damage is not as important as the specific areas of the brain that are affected. So, if the pons or medulla were affected, you would be considered brain dead already. But, if you loose that much area, you will have significant mental status changes and impairments of motor function. This is not a good circumstance. ...Read more

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Can smoking cigarettes cause brain damage due to lack of oxygen or something?

Can smoking cigarettes cause brain damage due to lack of oxygen or something?

Indirectly: Smoking is a major cause of arteriosclerosis, narrowing of arteries and reducing blood flow to the brain as well as strokes. All can lead to brain damage. ...Read more

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I'm curious. What symptoms go along with lack of oxygen?

I'm curious. What symptoms go along with lack of oxygen?

Many: Depending on whether it is acute or chronic. When chronic, there is fatigue, breathlessness on exertion and, if carbon dioxide levels are also rising, somnolence deteriorating to coma. When acute, there is confusion (think of pilots above 10, 000 feet without oxygen), cyanosis, breathlessness progressing to frank air hunger. If coronary disease is present, there is angina. ...Read more

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When I laugh I feel dizzy like I'm going to pass out . Lack of oxygen? New symptom. Also when I cough . What could this be ?

When I laugh I feel dizzy like I'm going to pass out . Lack of oxygen? New symptom. Also when I cough . What could this be ?

Vagal response : It sound like you are getting s Vaal reaction initiated by the sudden increase in the abdominal pressure from laughing or coughing . Try to stay well hydrated by drinking at least 6-8 bottles of water a day in the winter and more in summer . Not better see a doctor ...Read more

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Could a lack of oxygen to the eyes cause dark circles?

Could a  lack of oxygen to the eyes cause dark circles?

Dark circles : Not enough sleep, illness, systemic allergies, dehydration, hereditary pigmentation (in darker skinned individuals). ...Read more

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What are the long term affects of lack of oxygen to legs in emphysema?

What are the long term affects of lack of oxygen to legs in emphysema?

Bad: Lack of oxygen in emphysema is general and not localized to one part of the body. Most critical and sensitive parts are brain and heart. If there is additional poor circulation to the legs, lack of oxygen will contribute to leg cramps, leg pain, nerve damage, poor wound healing and gangrene. ...Read more

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Could you tell me what are long term affects of lack of oxygen to legs in emphysema?

Could you tell me what are long term affects of lack of oxygen to legs in emphysema?

Oxygen delivery: Lack of oxygen to any part of the body from any cause may cause ischemia. This causes the cells to do their work via alternate pathways. This causes Lactic Acid buildup pain and eventually cell death. Claudication is a term you may have heard when there is poor circulation to the legs causing pain. The poor circulation reduces the amount of oxygen delivered. ...Read more

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Umbilical cord prolapse caused a 30 second lack of oxygen to the baby during delivery. Will the baby be okay?

Umbilical cord prolapse caused a 30 second lack of oxygen to the baby during delivery. Will the baby be okay?

Only 30 ???: I am reluctant to accept the initial statement as realistic. Once a cord begins to prolapse it can produce an intermittent but complete obstruction to blood flow that may add up to a significant o2 deficit over time.I'm not sure anyone can estimate the insult accurately.If only 30, probably no long term effect. If low 1/5/10 min apgars and seizures in the 1st 24hr,it was longer and more problemat ...Read more

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Can you heal or reverse brain damage cause at birth from lack of blood and oxygen to the brain with healing foods or any break through medications?

I'm sorry: Please forgive my frankness. Charlatans prey on the desperation of handicapped people to make money. Anyone offering you "healing foods" or some magic supplement is trying to scam you. However, there are whole practices of medicine that focus on helping folks with this kind of disability -- not with the hope of cure or reversing the tissue injury, but making life easier and more enjoyable. ...Read more

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I had an eye exam the ophthalmologist said there are signs of lack of oxygen to the back of my eyes and a slight bleed. What does this mean?

I had an eye exam the ophthalmologist said there are signs of lack of oxygen to the back of my eyes and a slight bleed. What does this mean?

Bleed in eye: Could be he means you have an artery occlusion in retina. If you have diabetes, high blood pressure, or an inflammatory condition, this can happen: you are able to send us your fundus photo and notes for detailed explanation via Concierge. ...Read more

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Can sleep myoclonus make your brain feel like it has a "beat" of its own? Feel pressure/not headache. I worry about prolonged lack of oxygen to brain?

Can sleep myoclonus make your brain feel like it has a "beat" of its own? Feel pressure/not headache. I worry about prolonged lack of oxygen to brain?

Sleep study???: Have you had a sleep study? A sleep study will help to define what is happening while you sleep as well as determine if your oxygen level is dropping while you sleep. Then, treatment can be prescribed depending on the findings. See your doctor so a sleep study can be arranged. ...Read more

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Is severe ectopic heart beats dangerous w/ lack of oxygen to the heart w/ pulm stenosis, h murmur and severe asthma? Pulse is 120+ w/ heart medicine.

Is severe ectopic heart beats dangerous w/ lack of oxygen to the heart w/ pulm stenosis, h murmur and severe asthma? Pulse is 120+ w/ heart medicine.

Too complicated: In general the answer would be no, but your situation is quite complicated and you will need to discuss with your doc or cardiologist. ...Read more

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Help me out here: what is lack of oxygen?

Help me out here: what is lack of oxygen?

Low levels of oxygen: There are a few different ways to measure oxygen levels in your blood. Simply put, oxygen is necessary for your body to produce energy (to stay alive!) if the levels of oxygen are a little bit low, your body will slowly suffer. If its really low, the body cannot survive for long. There are several organs involved in delivering oxygen to your body. Which one is not functioning? ...Read more

Dr. Scott Bolhack
3,112 doctors shared insights

Oxygen (Definition)

Oxygen is a gas that the cells in your body need to work properly. The air we breathe normally has 21% oxygen. A maximum of 100% oxygen can be given. Babies with heart or lung problems may need ...Read more