Brain ischemia (aka cerebral ischemia, cerebrovascular ischemia) is a condition in which there is insufficient blood flow to the brain to meet metabolic demand.This leads to poor oxygen supply or cerebral hypoxia and thus to the death of brain tissue or cerebral infarction / ischemic stroke.ther effects that may result from brain ischemia are stroke, cardiorespiratory arrest, and irreversible brain damage. An interruption of blood flow to the brain for more than 10 seconds causes unconsciousness, and an interruption in flow for more than a few minutes generally results in irreversible brain damage.
A. If the heartbeat is too slow, usually considered a rate below 60 beats a minute, not enough oxygen-rich blood flows through the body. The symptoms of a slow heartbeat are:
Keeping track of your blood pressure and pulse lets you know how hard your heart is working and what your risk for heart disease is. A normal pulse rate at rest is between 60 and 100 beats per minute.Generally, a lower pulse rate means that your heart muscle is not having to beat too hard to do its job. However, if your pulse goes too low, it can be dangerous.our doctor can use an electrocardiogram and other heart monitor tests to see if you are at risk. Only your doctor can determine whether your low pulse rate is at a dangerous level for you and prescribe the appropriate treatment.