What does a watershed infarct mean?
1 or watershed infarct, medical : a localized area of ischemic tissue death in an area of the brain situated at the farthest point of blood supply from two separate cerebral arterial systems that is caused by inadequate blood flow (as from low blood pressure, vasculitis, or blood clot obstruction)
What is cerebral watershed infarct?
A watershed stroke is defined as a brain ischemia that is localized to the vulnerable border zones between the tissues supplied by the anterior, posterior and middle cerebral arteries. The actual blood stream blockage/restriction site can be located far away from the infarcts.
What are the symptoms of a watershed stroke?
Watershed Stroke Symptoms, Causes, and Treatment
- A watershed stroke describes a stroke that affects one or more of the watershed regions of the brain.
- Symptoms of a watershed stroke might include weakness or paralysis, especially of the legs, and mood disturbances.
What does Watershed mean in medical terms?
Watershed area is the medical term referring to regions of the body,that receive dual blood supply from the most distal branches of two large arteries, such as the splenic flexure of the large intestine.
What are the symptoms of brain ischemia?
The symptoms of cerebral ischemia include:
- weakness in one arm or leg.
- weakness in one entire side of the body.
- dizziness, vertigo, double vision.
- weakness on both sides of the body.
- difficulty speaking.
- slurred speech.
- loss of coordination.
What causes infarction?
Infarction is tissue death (necrosis) due to inadequate blood supply to the affected area. It may be caused by artery blockages, rupture, mechanical compression, or vasoconstriction. The resulting lesion is referred to as an infarct (from the Latin infarctus, “stuffed into”).
Is lacunar infarct serious?
Lacunar stroke is a life-threatening emergency. Some risk factors such as aging and family history are beyond your control, but certain lifestyle behaviors can influence risk.
What type of stroke is lacunar infarct?
Lacunar stroke is a type of ischemic stroke that occurs when blood flow to one of the small arteries deep within the brain becomes blocked. According to the National Institutes of Health (NIH) , lacunar strokes represent about one-fifth of all strokes.
How long can you live with brain ischemia?
Another study found that as many as 36% patients did not survive beyond the first month. Of the remaining, 60% of patients suffering from an ischemic stroke survived one year, but only 31% made it past the five-year mark.
Is brain ischemia a stroke?
Cerebral ischemia or brain ischemia, is a condition that occurs when there isn’t enough blood flow to the brain to meet metabolic demand. This leads to limited oxygen supply or cerebral hypoxia and leads to the death of brain tissue, cerebral infarction, or ischemic stroke.
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