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Doctor insights on: Celebral Blood Flow Restriction

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Echo saging of the body of AMVL, normal blood flow, trivial MR. Restrictions? Can I live normal and do everything? Only symp skip beats waning/waxing

Echo saging of the body of AMVL, normal blood flow, trivial MR. Restrictions? Can I live normal and do everything? Only symp skip beats waning/waxing

MVP: Such mild prolapse of the mitral valve is common and should not impact your physical activities, although atrial irritability certainly may occur. You could have a treadmill exercise stress test to see if strenuous physical exertion precipitates significant cardiac rhythm disturbances. Passing such a test will give you peace of mind. I recommend echocardiography every year or two to monitor mvp ...Read more

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What does increased cerebral blood flow and volume mean?

What does increased cerebral blood flow and volume mean?

Tumors need nutrient: When tumors grow in the brain, they make new blood vessels (angiogenesis). These vessels are not normal compared to the non-tumor vessels. As a result, more blood flows into the tumor, which allows for more tumor growth. Since there is more flow, at any given time there is more blood volume in the tumor. Occasionally, there may be so much flow that it can shunt, or divert, flow from normal brain. ...Read more

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Does blood flow from the anterior communicating arteries to the anterior cerebral arteries?

Does blood flow from the anterior communicating arteries to the anterior cerebral arteries?

Not exactly: The flow to the anterior cerebral starts at the heart, goes up the ascending aorta, to carotid arteries which reach the Circle of Willis, and go to anterior cerebral, middle cerebral and posterior cerebral arteries. Anterior communicating can be viewed as a bridging collateral. ...Read more

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What meds increase cerebral blood flow, aside from acetazolamide?

What meds increase cerebral blood flow, aside from acetazolamide?

Vasodilators: Depending on your underlying medical conditions vasodiltors would include calcium channel blockers, beta blocker and nitrates. Acetazolamide is a diuretic- no effect of vasodilation: consult your cardiologist. ...Read more

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Is there anyway to see if cerebral blood flow is reduced when standing? Got dysautonomia and suspect cerebral vasoconstriction is too excessive

Is there anyway to see if cerebral blood flow is reduced when standing? Got dysautonomia and suspect cerebral vasoconstriction is too excessive

Dysautonomia: Dysautonomia syndrome causes different symptoms alleviated by avoidance of stimulants, ensuring hydration, using magnesium, vitamin D & omega fish oils (www. Cardiamin. Com, use code: CMC), low dose beta blockers e.g. propranolol 5 to 10mg 2 to 3 times daily and SSRIs e.g. citalopram 5 to 10mg daily. Read Dr. Ronald Hoffman’s MVP book (www. Amazon. Com) and visit www. Dysautonomiainternational. Com. ...Read more

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Studies show caffeine reduces Cerebral BloodFlow 27-40%... does this mean caffeine is damaging brain cells? Why not? Reduced blood flow is NOT good!?!

Studies show caffeine reduces Cerebral BloodFlow 27-40%... does this mean caffeine is damaging brain cells? Why not? Reduced blood flow is NOT good!?!

If that were: The whole truth, caffeine would not be the most widely used psychoactive agent on Earth. Caffeine also enhances alertness, enhances mental focus and improves score for all comers in tests of performance and cognition. So, this is what happens when you take one isolated physiologic response and try to then conclude something more complex about cell function, especially the brain. Neurobiology=??? ...Read more

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Best diagnostic to detect vasoconstriction and reduced cerebral blood flow? Transcranial doppler?

Best diagnostic to detect vasoconstriction and reduced cerebral blood flow? Transcranial doppler?

Read on: TCD can detect local areas of diminished flow but the best way to investigate vasoconstriction and stenosis is by MRA (magnetic resonance arteriogram) ...Read more

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Do beta-blockers decrease cerebral blood flow? What meds increase cerebral blood flow through cerebral vasodilation?

Do beta-blockers decrease cerebral blood flow? What meds increase cerebral blood flow through cerebral vasodilation?

NO: Betablockers do not reduce cerebral blood flow. Medicines that dilate cerebral blood vessels, like nitrates, cause headache. The brain has a mechanism called "autoregulation" that keeps flow constant. ...Read more

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What R the lasting effects of a years worth of reduced cerebral blood flow due to vasoconstriction? Does the lack of proper CBF result in cell death?

What R the lasting effects of a years worth of reduced cerebral blood flow due to vasoconstriction? Does the lack of proper CBF result in cell death?

The long term effect: Of "reduced" CBF due to TEMPORARY constriction of the vessels (as in migraine) are not really known but several studies have shown that even severe chronic migraine does not reduce flow sufficiently to damage brain cells!

Hope this helps!
Dr Z ...Read more

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We can give cinnarizine in pat. With ischemic stroke and TIA to promote cerebral blood flow?

We can give cinnarizine in pat. With ischemic stroke and TIA to promote cerebral blood flow?

Cinnarizine: I could find no literature that suggested that cinnarizine was documented to help in pat, ischemic stroke or tia. It is a weak calcium blocker. ...Read more

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What does it mean when there is increased cerebral blood volume and blood flow to a brain tumor?

What does it mean when there is increased cerebral blood volume and blood flow to a brain tumor?

Cancer and blood flo: Many cancers elaborate factors that enable the growth of new blood vessels. In this way they gain an advantage in growth. When seen clinically on radiologic tests, this is a marker of malignancy and agressiveness, especially in the brain where low grade tumors only do this to a mild degree. Some cancers are treated by agents that interrupt this process, hoping to "starve" them of nutrients. ...Read more

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Please explain what it means when there is increased cerebral blood volume and blood flow in a brain tumor?

Please explain what it means when there is increased cerebral blood volume and blood flow in a brain tumor?

No implications: All tumors have a tendency to develop increased blood flow and abnormal blood circulation which is often picked up during various imaging tests. It has no particular significance or any clear implications. ...Read more

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Does chronic strong sympathetic nervous system overreaction from stimulant use result in meaningfully reduced cerebral blood flow?

See below: BOLD studies show reduced circulation and metabolic function in very specific areas of the prefrontal cortex and limbic system. It is unclear if the circulation reduction is primary vs a primary reduction of activity in those areas ...Read more

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Is there any drug that selectively increases cerebral blood flow but does not effect systemic blood pressure or heart rate?

Is there any drug that selectively increases cerebral blood flow but does not effect systemic blood pressure or heart rate?

Unlikely: I am not aware of such a drug. I am not sure why you might want this. There is not a specific way to do this and many drugs are able to cross the blood brain barrier. See your doctor if you have any symptoms you cannot complain. ...Read more

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I've taken. 1mg clonidine 2x/day one week, all week head felt heavy, vision blurry, tapering off it. Is reduced cerebral blood flow permanent effect?

I've taken. 1mg clonidine 2x/day one week, all week head felt heavy, vision blurry, tapering off it. Is reduced cerebral blood flow permanent effect?

Clonidine: Clonidine has lots of side effects and those aren't unusual and it doesn't mean you had decreased cerebral blood flow. Discuss with your Doc, there are lots of BP choices. ...Read more