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Doctor insights on: Peripheral Vasoconstriction

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What is peripheral vasoconstriction? How it affect blood pressure?

What is peripheral vasoconstriction? How it affect blood pressure?

Higher pressure: Tightening up of the blood vessels (arteries). Results in higher blood pressure and a narrowing of the pulse pressure (difference between the higher (systolic) and lower (diastolic) measurement. ...Read more

Vasoconstriction (Definition)

Vasoconstriction is the narrowing of the blood vessels resulting from contraction of the muscular wall of the vessels, particularly the large arteries and small arterioles. The process is the opposite of vasodilation, the widening of blood vessels. The process is particularly important in staunching hemorrhage ...Read more


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Is diastolic blood pressure primarily determined by the amount of peripheral vasoconstriction?

Is diastolic blood pressure primarily determined by the amount of peripheral vasoconstriction?

Vascular tone: Vasoconstriction is usually an abnormal state. Diastolic blood pressure is determined, in part, by the normal tone of blood vessels. ...Read more

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Please explain why vasoconstriction happens in hypoxia?

Please explain why vasoconstriction happens in hypoxia?

Not whole body: In fact more parts of the body will have vasodilation, as in organs and muscles you then resort to anaerobic respirations which causes Lactic Acid production and causes vasodilation. The skin on the other hand thee may be vasoconstriction to preserve the flow of oxygen to the essential organs. ...Read more

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Can sodium channel blockers treat vasoconstriction and ED?

NO: Are you referring to calcium channel blocker? The drugs you are talking about such as viagra (sildenafil) are Phosphodiesterase inhibitors. They will treat ed but I am not sure what you mean by vasoconstriction. The PDI's will prevent the release of blood from the organ prematurely and there by treat the ED.
See your doc for further info. ...Read more

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What is vasoconstriction? What is the real cause of it and how to avoid from getting it?

Blood vessel narrowi: Vasoconstriction refers to periodic narrowing of arteries. This is most commonly precipitated by cold weather, dehydration, certain medications, caffeine and some disease conditions. It is generally a reflexive response of arteries to cold weather etc. ...Read more

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Does vasoconstriction cause ed?

Here are some. ..: Here are something that can really help you to keep your sex going as well and as long as you can be: low-risk healthy lifestyle without overindulgence & obsession, including sex, plus judicious use of medication. But, nothing will last forever. So, go to see a sensible Doc for sensible Rx and counseling. More? To http://formefirst. Com/eBlogList. Html. ...Read more

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How do you get vasoconstriction?

How do you get vasoconstriction?

Vasoconstriction: Vasoconstriction is a phenomenon where in the blood vessels constrict in response to various physiological or pathological factors. Constriction of vessel results in lesser blood flow and increases the blood pressure. It may occur in acute blood loss, cold environment, sepsis, septic shock, etc. ...Read more

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What is the definition or description of: vasoconstriction?

See below: Vasoconstriction is the narrowing of the blood vessels resulting from contraction of the muscular wall of the vessels, particularly the large arteries and small arterioles. The process is the opposite of vasodilation, the widening of blood vessels. The process is particularly important in staunching hemorrhage and acute blood loss. ...Read more

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How does hypoxemia cause vasoconstriction?

Reactive: When oxygen levels are low the peripheral vessels constrict and blood is preferentially shunted to the vital organs. ...Read more

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How much vasoconstriction does 2.5mg midodrine give?

Midodrine: People react differently to the same dose of drugs, you should discuss with the dr. Who knows you. ...Read more

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Does hypoxia cause vasoconstriction or vasodilation?

Does hypoxia cause vasoconstriction or vasodilation?

Vasoconstriction: Low oxygen cause blood vessels to constrict. The body is trying to use whatever oxygen is available to maintain critical body functions and constrict blood flow to others. ...Read more

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Is vasoconstriction caused by Adderall temporary or permanent?

Is vasoconstriction caused by Adderall temporary or permanent?

Temporary: Adderall is cleared quickly by the body and the vasoconstriction would resolve after clearance. Continued administration of the medication will likely result in the body adjusting so that the affect will not continue to occur. If it does then an alternative medication must be considered. Best regards. ...Read more

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Nicotine induced vasoconstriction--can it lead to permanent constriction of vains.?

Nicotine induced vasoconstriction--can it lead to permanent constriction of vains.?

Arteries, not veins: Thromboangiitis obliterans

buerger's disease is a rare disorder associated with heavy smoking. ...Read more

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Could dmaa be used in conjunction with l-theanine to counteract the dangerous vasoconstriction of dmaa?

Dmaa: Don't understand your abbreviations. It is dangerous to use them as they may be confused. Let's chat. ...Read more

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How could vasoconstriction affect cardiac output?

How could vasoconstriction affect cardiac output?

It lowers it: Vasoconstriction increases the resistance to flow. This is called an afterload. It is like a pump having to pump water up a steep hill; it won't pump as well as on flat land. ...Read more

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Can vasoconstriction cause a urethral stricture to reoccur?

Can vasoconstriction cause a urethral stricture to reoccur?

Not really: Unless you've had a urethroplasty where the stricture was cut out and sewn back together, there's always a good chance of recurrence because the scar by definition has a poor blood supply. Not the same thing as vasoconstriction. ...Read more

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Can monosodium glutamate cause vasoconstriction (to any degree in any part of the body) in some people?

Can monosodium glutamate cause vasoconstriction (to any degree in any part of the body) in some people?

No... not as yet: No clinical evidence suggests that MSG promotes, incites or exacerbates disease states such as hypertension. When used as a seasoner to foods such as soups it's presence allows for up to 30-40% reduction of sodium chloride, which can exacerbate disease such as congestive heart disease. ...Read more

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How does vasoconstriction effect heart rate?

How does vasoconstriction effect heart rate?

Epinephrine: Complex interaction. If you were to assume that vessels and heart were entirely independent, you might postulate that heart rate could slow down after vasoconstriction since there is less tubing to pump through. But the chemicals that mediate vasoconstriction also mediate heart rate and force of contraction so that they usually rise in parallel. ...Read more

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Why does vasoconstriction increase heart rate?

Why does vasoconstriction increase heart rate?

It doesn't: If you give a pure vasoconstrictor like norepinephrine which has no effect on cardiac conduction, it will actually slow the heart reflexively and it's used for that purpose - to terminate tachyrhythmias. ...Read more

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Why does codeine cause vasodilation in the body but vasoconstriction in the lungs?

Why does codeine cause vasodilation in the body but vasoconstriction in the lungs?

Doubtful: While vasodilitation has been reported I could not find evidence for vasoconstriction in lungs. Exact mechanism is not clear. Personally I have not found any significant drop in BP in scores of patients taking codeine. ...Read more

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How does propranalol prevent migraines? By causing vasoconstriction? Or by some other method? What would that be?

How does propranalol prevent migraines? By causing vasoconstriction? Or by some other method? What would that be?

Propranolol: Beta adrenergic blocker. They act by depressing the peripheral beta-adrenergic receptors that promote vasodilatation. Propranolol was discovered accidentally when a patient who was taking this medication for heart disease noticed that his migraine headaches ceased. ...Read more

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How does chronic vasoconstriction in the brain affect it? What are the lasting detrimental affects? Please elaborate

How does chronic vasoconstriction in the brain affect it? What are the lasting detrimental affects? Please elaborate

Perhaps stroke: Vasoconstriction refers to narrowing or arteries. This reduces blood flow. The brain needs blood flow. When it is working, blood flow increases to areas to higher metabolism.

It's not clear what condition causes chronic vasoconstriction. Atherosclerosis narrows some of the important arteries to the brain, and often this increases the risk of stroke. ...Read more

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Can you tell me about epinephrine stimulates a1 and b2 receptors. Does this lead to both vasoconstriction and vasodilation?

Adrenergic receptors: Hi. Epi stimulates vascular alpha-1 and beta-2 receptors, so yes, there is both vasoconstriction & vasodilation (so you see pulse width widen). Epi also stimulates cardiac beta-1 receptors and speeds up the heart rate. Not a question we commonly see...what makes you ask? Do you have a pheo? Good luck? ...Read more

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If pt ganglion provides vascular parasympathetics (=vasoconstriction), then how does pt ganglion block (=vasodialation), decrease cluster ha?

If pt ganglion provides vascular parasympathetics (=vasoconstriction), then how does pt ganglion block (=vasodialation), decrease cluster ha?

Discuss with MD: Transnasal sphenopalatine ganglion (spg) block injections have been helpful in migraines but have also had positive results in treating medication- resistant cluster headaches. A number of surgical treatments have been attempted in cases of cluster ha resistant to pharmacologic therapy, of which spg blockade has been shown to have the most successful results. ...Read more

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Why does vasoconstriction (particularly from vasopressin) increase cerebral bloodflow?

Why does vasoconstriction (particularly from vasopressin) increase cerebral bloodflow?

Difference in vessel: This is a protective mechanism. The vessels in the brain don't have as much ability to contract compared to peripheral blood vessels. The brain is the main server of the body and has to be protected to keep the rest of the body functioning. The peripheral vessels constricting causes shunting of the blood towards the path of least resistance. ...Read more

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Could you tell me what are possible medicines to cure vasoconstriction of blood vessel?

Could you tell me what are possible medicines to cure vasoconstriction of blood vessel?

Cure not likely: The mainstay of treatment is to avoid doing things that make your vasoconstriction worse. So, avoid caffeine, nicotine, cold and stress. Also avoid otc cold meds, beta blockers for high blood pressure and certain birth control pills. If medication is needed, calcium channel blockers, Alpha blockers, and vasodilators like Nitroglycerin and several other drugs. Unfortunately nothing is a cure. ...Read more

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Just started my midodrine for dysautonomia. When I feel my pulse I can't feel it as much is this from vasoconstriction? I feel better!

Just started my midodrine for dysautonomia. When I feel my pulse I can't feel it as much is this from vasoconstriction? I feel better!

Yes: Midodrine causes stimulation of the adrenergic receptors, causing vascular constriction and increased blood pressure. It is particularly useful when used before eating, or before standing for prolonged periods. Just curious - did you try Florinef (fludrocortisone) first? ...Read more

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I read that psuedophedrine's mode of action is vasoconstriction (narrowing in arteries). So does this mean that it causes arteriosclerosis?

I read that psuedophedrine's mode of action is vasoconstriction (narrowing in arteries). So does this mean that it causes arteriosclerosis?

No: Vessels narrowing, is temporary through smooth muscle contraction in the vessels wall. While arteriosclerosis, stands for hardening of the vessel walls due to deposition of fat / calcium, that's why people with hypertension better not take pseudoephedrine which can raise their blood pressure further, wish you wellness ...Read more

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When I use a waterpik daily should the water be cold for vasoconstriction or warm so the water moves quickly beneath the gums to reach deeper?

When I use a waterpik daily should the water be cold for vasoconstriction or warm so the water moves quickly beneath the gums to reach deeper?

Room temperature: Never set higher than medium. The important things consistency, use it regularly, and follow a pattern rather than skipping around. ...Read more

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Have POTS Syndrome! Feel better after having hot showers. Light sensitivity amongst other symptoms alleviated. Possible excessive vasoconstriction?

Have POTS Syndrome! Feel better after having hot showers. Light sensitivity amongst other symptoms alleviated. Possible excessive vasoconstriction?

Would be odd: It would be odd for hot showers to improve POTS symptoms. Usually, it's the other way 'round. If someone had the so-called "hyperadrenergic POTS' it is possible hot showers would be helpful.

Regardless, if you feel better and your symptoms improve...shower away! (You do have to get out of the shower at some point, of course....) ...Read more

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Could sodium channel blockers help w/ angina and vasoconstriction? I Read about Ranolazine, sounds promising for angina, any experience? Vasodilation?

Could sodium channel blockers help w/ angina and vasoconstriction? I Read about Ranolazine, sounds promising for angina, any experience? Vasodilation?

Sure: Ranolazine can definitely help with chronic nonrevasularizable angina but there are many more med options before that. And at age 35 it's not something that would be used on you really. ...Read more

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Does an adrenaline surge (from anxiety or exercise) when taking a non-selective B-blocker cause coronary vasoconstriction? Selective B1-blckr better?

Does an adrenaline surge (from anxiety or exercise) when taking a non-selective B-blocker cause coronary vasoconstriction? Selective B1-blckr better?

Beta blockers: B blockers are used to treat angina caused by coronary disease, and they are effective. They reduce heart rate and the workload of the heart, including response to exercise. With very high norepinephrine conditions, eg. pheochromocytoma, blocking beta can cause unopposed alpha and raise BP. But that is a very rare condition. ...Read more

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Can Cipralex and SSRIs cause vasoconstriction and raise blood pressure?

Can Cipralex and SSRIs cause vasoconstriction and raise blood pressure?

Possibly: While SSRIs generally are very selective to the neurotransmitter serotonin, there may be some some effects on norepinephrine receptors. This theoretically can raise pressure, however in practice we typically do not see this. ...Read more

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Does caffeine cause vasoconstriction, or vasodilation of the renal arteries?

Does caffeine cause vasoconstriction, or vasodilation of the renal arteries?

Vasoconstrict: The mechanisms of the kidneys are complex. Caffeine tends to cause vasoconstriction. The kidneys chemical mediators can counteract this effect however. Just like anything we take into our bodies you should use caffeine in moderation. Don't overdo it. ...Read more

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Will vasoconstriction of the sympathetic nerve activity increase heart rate? If yes. How?

Opposite: Vasoconstriction is associated with blood vessels, not nerves. Sympathetic nerves cause vasoconstriction of blood vessels by changing the sympathetic tone of the smooth muscle of blood vessels. ...Read more