Cerebral infarction is caused by a blockage of a blood vessel in the brains. Part of the brains is without oxygen and nutrients and experiences damage and function loss or dies. Cerebral infarction, as well as cerebral hemorrhage and TIA, falls under the heading of ‘stroke’.
Cerebral infarction can occur when an artery in the brains gets clogged. This is called atherosclerosis. Fats accumulate on the inside of the blood vessels. If a portion breaks off, it may block a blood vessel in the brains. Clogging of the artery takes time. There are progressively more and more deposits against the artery wall, which ultimately leads to the situation that no blood can pass through anymore. Then we speak of cerebral infarction.
It may also be that a blood clot goes through the heart to the brains and shuts off an artery there. Then the brains receive no more blood and oxygen. The clot can get stuck in the brains itself or in a vein that carries blood towards the brains. The main places where blood clots occur are the carotid arteries, the heart and the valves.
A cerebral infarction occurs rapidly and unexpected and can be identified by the following signs and symptoms:
The doctor can identify a cerebral infarction on the basis of physical examination and a description of what has happened. The doctor can usually determine on the basis of the neurological symptoms, which artery in the brains is blocked. The typical sound of blood swirls in the carotid artery (audible with a stethoscope) may indicate narrowing.
Making the exact diagnosis requires several examinations, including a CT or MRI scan of the brains, blood tests and possibly an ECG or an examination of the blood vessels in the neck.
First, a doctor must determine whether the patient has had a cerebral infarction or a cerebral hemorrhage. This is not visible from the outside. The symptoms are the same, but for treatment it is crucial to know.
In case of a cerebral infarction, treatment must be started as quickly as possible. This treatment is called thrombolysis. The patient is given an infusion of clot-
And with a cerebral hemorrhage, the bleeding should just be stopped. Therefore, thrombolysis may only worsen the situation in case of cerebral hemorrhage. Thrombolysis should start at least within 4.5 hours after the occurrence of the first failures. After 4.5 hours, the chance of recovery decreases rapidly. The risks of treatment (especially bleeding) do no longer outweight the benefits (proper recovery) then.
After cerebral infarction, the patient will also receive medication to lower blood pressure and cholesterol.
Approximately ten percent of the patients who have had a cerebral infarction, recover almost completely and about twenty-
Once a person has had a brain infarction, he or she is at increased risk of getting it again. This risk can be reduced by taking the following measures:
Brain Infarction, Cerebral Infarct