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Doctor insights on: Brain Blood Supply

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What evidene exists on short-term cocaine use on the cardiovasulature, heart, brain blood supply, or the central nervous system? Is damage reversible?

What evidene exists on short-term cocaine use on the cardiovasulature, heart, brain blood supply, or the central nervous system? Is damage reversible?

Vasoconstriction: Cocaine causes blood vessels to shrink down (vasoconstrict). This increases blood pressure and decreases blood flow to vital organs. This can cause strokes, kidney failure, heart attacks, etc. The constriction is temporary, but the damage can be permanent. ...Read more

Dr. Robert Hutchman
91 doctors shared insights

Deep Brain Stimulation (Definition)

Deep brain stimulators are used in the treatment of parkinson's and tremors. A person is scanned with a MRI or ct frame on their head. A burrhole is then made and a stimulator wire is passed into a precise deep brain target. This is connected to a stimulator which placed under the skin. They are very expensive but ...Read more


Dr. Joan Sy Dr. Sy
3 doctors agreed:
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Reduced blood supply to the brain can result in what?

Dr. Joan Sy Dr. Sy
3 doctors agreed:
Reduced blood supply to the brain can result in what?

Ultimately STROKE: The brain is the cpu of our human body controlling its ability to comprehend speach, assimilate words, see, hear, swallow, coordinate movement and assimilate tactile feeling from our environmnt. Like any organ, just as the engine of a car needs gas 2 work, if circulation is compromised then the ability of that organ to function properly can also be compromised - occnl transient or may b permanent. ...Read more

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Interruption of blood supply to the brain the cause of fainting?

Interruption of blood supply to the brain the cause of fainting?

Yes: If not enough blood reaches the brain due to blood lost, dehydration, low bp, arrhythmia, etc. You can faint. ...Read more

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Does migraine associate with less blood supply in brain?

Does migraine associate with less blood supply in brain?

Probably: That is the current most popular theory, and research is suppoering it so far. But any understanding of why and how the blood flow is affected is still a ways off. ...Read more

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Carotid artery surgery for lack of blood supply to the brain?

Carotid artery surgery for lack of blood supply to the brain?

Unusual: Typically carotid artery disease causes stroke or TIA by embolic phenomena where a plaque rupture induce clots that travels to the brain. Due to extensive blood flow to brain from two carotid arteries and two vertebral arteries, it's unusual for chronic occlusion in one artery to cause symptoms but it can especially with more proximal occlusion , this can be corrected with bypas surgery or stent. ...Read more

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Vas.Dr, blocked sub clavicle artery, 1 of 4 arteries to brain has reversed blood flow and is trying to supply L arm w/blood. Said I need neurosurgeon? What would be the procedure to remedy this?

Vas.Dr, blocked sub clavicle artery, 1 of 4 arteries to brain has reversed blood flow and is trying to supply L arm w/blood. Said I need neurosurgeon? What would be the procedure to remedy this?

Subclass steal: I specialize in these problems. I would think you need to see vascular surgeon not neurosurgeon. This is called subclavian steal. Suspect you have low BP in that arm. Discuss with your family doctor. Most likely it is your left arm. Give us more details. ...Read more

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Carotid artery surgery and lack of blood supply to the brain. Could that cause stroke effects?

Carotid artery surgery and lack of blood supply to the brain. Could that cause stroke effects?

Yes. Call Now!: Patients who have had carotid artery surgery definitely have a risk of stroke. The highest risk of stroke is during and immediately after the procedure and is generally quoted at about 2%. If you are experiencing any signs of stroke and have had recent carotid surgery call your surgeon immediately or go to the emergency room. Difficulty speaking or weakness on one side of the body would be the most common complaints. ...Read more

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I was examined, I was told that enough blood is not passing to my brain due to that my blood is too thick?

Is this confirmed: Sounds like bizarre comment to me, unless you have a hyper-coagulation syndrome, high serum viscosity, or highly elevated hematocrit. Maybe get second opinion. ...Read more

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No enough blood flow to the brain?

No enough blood flow to the brain?

Stroke: A blockage of an artery in the brain or to the brain can lead to a stroke. If there is significant narrowing of the artery, then a ballon dilatation of the vessels, a stent, or surgical removal of the plaque is performed to open the artery. There are now devices to remove or breakup newly formed blood clots. A brain bypass is performed when the narrowing can't be repaired with other measures. ...Read more

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What are the reasons of brain low blood flow?

What are the reasons of brain low blood flow?

Generic answer: Not sure what you are asking, but brain blood flow can drop due to low blood pressure, fainting, bleeding, obstruction of blood vessels as in stroke, abnormal heart rhythms, heart attack, aneurysms, etc. By the way, not in fibromyalgia. ...Read more

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Why is blood flow to the brain relatively constant?

Why is blood flow to the brain relatively constant?

Autoregulation: Blood flow to brain is critical to continue to deliver oxygen and glucose. Blood flow is affected by blood pressure, and cardiovascular integrity. Brain vascular caliber and distribution is influenced by carbon dioxide concentration and pH secondarily, with neuronal feedback to the cardiovascular system. ...Read more

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What are some symptoms of low blood in the head/brain?

What are some symptoms of low blood in the head/brain?

Not sure of question: Unrestricted flow of blood through the brain is essential for its function, because the brain has no built in stores of nutrients or oxygen. Minor inadequate blood flow can cause light-headedness and even fainting. Major blood flow problems such as follows a stroke can lead to death of cells in that region, with major long-term negative effects. ...Read more

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Can you tell me what decreased blood flow to the brain means?

Just that!?: reduced blood to the brain has many causes including blood pressure changes, atherosclerosis or hardening of the arteries ofr heart failure Brain cannot do without oxygen or sugar for more than a few minutes ...Read more

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what would be the symptoms of decreased blood flow to the brain?

Depends: The effects depend on the distribution, severity, speed of decline and existing disorders. If the decrease is sudden, transient and global, it causes fainting. If it is prolonged and global, it could cause life-threatening consequences like respiratory and/or cardiac arrest. If the decrease if focal, transient and mild, it causes transient ischemic attack; severe decline would result in a stroke. ...Read more

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Why should we pay attention to the blood-brain barrier development?

DISEASE INDICATOR: During intrauterine development, infancy and childhood the brain develops very rapidly. The ability to selectively protect the brain from some blood borne substances is essential. Viral illnesses of the brain can disrupt the blood brain barrier. ...Read more

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Which test would show if there is adequate blood flow to the brain ?

Which test would show if there is adequate blood flow to the brain ?

Well if you feel: Dizzy or light heaed your own brain is telling you you need more flow to your brain. But... Your doctors need to examine you and listen for something called bruits in your neck. They can order proper testing after that examination. ...Read more

Dr. Hirenkumar Italia
13 doctors shared insights

Heavy Metals Panel Blood (Definition)

Heavy metals are common metals that can cause poisoning in humans. The most common example is lead, which is a big threat to children. Other metals encountered at work places can also be a problem: cadmium, arsenic, gold, mercury. A heavy metals test panel is a blood (or urine) test that assays for the ...Read more


Blood Clot (Definition)

A blood clot or thrombus is the final step of the coagulation cascade. It is a good thing when your body is trying to stop blood loss, however a blood clot can form in the veins after prolonged periods of immobility. This type of like ...Read more