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:
Causes of Slow heart rate that are very common. Causes of Slow heart rate that are common. Causes of Slow heart rate that are uncommon. Causes of Slow heart rate that are very rare. Causes of Slow heart rate without any prevalence information. The following causes of Slow heart rate are ones for which we do not have any prevalence information. All Causes of Slow heart rate. Drug side effect causes of Slow heart rate. The following drugs, medications, substances or toxins may possibly cause Slow heart rate as a side effect.