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Doctor insights on: Low Flow Tia

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Dr. James Wilentz
155 doctors shared insights

Transient Ischemic Attack (Mini Stroke) (Definition)

A condition where a blood vessel in the brain is temporarily blocked by a blood clot, causing neurologic symptoms, such as weakness in an arm or leg, or sensory changes. The symptoms are similar to a stroke, but are temporary, disappearing within minutes after the clot breaks apart. ...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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Low blood pressure what is too low to perfuse brain?

Depends on blood flo: Pressure is the moving force getting blood to a body part including the brain. What counts is not the pressure but the quality and quantity of the blood getting to the brain. Obviously some pressures are incompatible with adequate blood supply but the answer depends on other factors such as arterial blockage, chronic hypertension, coronary artery disease, aortic valve problems. ...Read more

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Does orthostatic hypotension cause a 'low flow' tia?

Does orthostatic hypotension cause a 'low flow' tia?

It can: It can if it is low enough or if there is already some cerebrovascular disease. ...Read more

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Does having low blood pressure equal low heart rate?

Does having low blood pressure equal low heart rate?

No: A person can have low blood pressure with a low heart rate, a normal heart rate, or a high heart rate. Likewise, a person can have a low heart rate, and have low blood pressure, normal blood pressure, or high blood pressure. ...Read more

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Is low BP after angioplasty normal?

Is low BP after angioplasty normal?

Angioplasty: Low BP after angioplasty is not unusual especially if BP lowering drugs are added such as calcium blockers or nitrates. ...Read more

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Bilateral high flow in common carotid artery and internal carotid artery with normal end diastolic velocity and no stenosis. Is this normal?

Bilateral high flow in common carotid artery and internal carotid artery with normal end diastolic velocity and no stenosis. Is this normal?

How high is high?: Increased flow without stenosis can happen if the cardiac output is very high or there is tortuosity if the arteries Generally don't worry until systolic velocity is over 200 cm/sec and even then it is probably ok with normal diastolic velocity why did you get the test? IF you are asymptomtic I would not worry too much ...Read more

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Are heart problems low blood pressure?

Are heart problems  low blood pressure?

Possibly: There are a number of conditions that can cause low blood pressure, from heart to hydration to kidney dysfunction. If you are symptomatic (lightheaded, feeling like you could pass out when standing), seek care. ...Read more

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Pale, unresponsive but eyes open, low bp, stiff---signs of tia, cva or hypotension?

Pale, unresponsive but eyes open, low bp, stiff---signs of tia, cva or hypotension?

Hypotension: Of the three choices given hypotension makes most sense. Neither cva nor TIA generally produces hypotension. I would be concerned about meds, metabolic and cardiac issues. Needs a few labs to sort this out quickly unless this contradicts his advance directive. ...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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How could a high heart rate influence coronary artery perfusion and myocardial oxygen delivery?

How could a high heart rate influence coronary artery perfusion and myocardial oxygen delivery?

Decrease: In coronary perfusion pressure due to shortened diastole. Oxygen demand is increased but perfusion may not keep up if there is narrowing of coronary artery ...Read more

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Is a high cholesterol level proof of arterial blockages?

Is a high cholesterol level proof of arterial blockages?

Cholesterol: high level increases the risk for having atherosclotic plaque but doesn't prove it is there ...Read more

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Arterial blood gases, very low oxygen levels found, what to do?

Arterial blood gases, very low oxygen levels found, what to do?

What is the level: If that's you, it must be wrong since you would not be thinking enough to be here, consider venous blood. On the other hand if it is someone else, then that person needs oxygen either by cannula, mask or even a ventilator. ...Read more

Dr. Alan Ali Dr. Ali
2 doctors agreed:
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Is dizziness due to low blood pressure?

Dr. Alan Ali Dr. Ali
2 doctors agreed:
Is dizziness due to low blood pressure?

Nausea/dizziness: Many causes possible, such as Migraines, inner ear problem, motion sickness, low blood pressure, high blood pressure, diabetes, early pregnancy, hyperventilation, etc. My recommendation is to seek medical attention if symptoms severe or other symptoms are noted. ...Read more

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Does peripheral nervous system cause low blood pressure and low pulse rate?

Does peripheral nervous system cause low blood pressure and low pulse rate?

Nerve slows pulse: Yes it can. The 10th cranial nerve or vagus nerve which is one of the longest in the body, can slow the heart rate and lower blood pressure. For example, this is how people pass out when frightened, at the sight of blood, etc. ...Read more