Cerebral ischemia

Introduction The transient blood supply to the brain and the appearance of symptoms are called transient ischemic attacks, a common acute cerebrovascular disease. Sudden onset of the patient, similar to the performance of cerebral hemorrhage or cerebral infarction, generally returned to normal within 24 hours, often causing a family to stun a battle, but can be repeated. Patients with transient ischemic attack may develop cerebral infarction within 1 to 5 years. A transient ischemic attack occurred in 1/3 to 2/3 of patients with cerebral infarction.

Cause

(1) Atherosclerosis, some cerebral arterioles are temporarily occluded. When the collateral circulation is established and recanalized in time, the blood supply is improved and the symptoms disappear within 24 hours.

(2) Hypertension, causing cerebral vasospasm, poor blood flow, insufficient blood supply.

(3) The tiny thromboembolism is eliminated by the action of the body itself, and the blood circulation is recanalized, but the same symptom can be reproduced when recurring.

(4) thrombocytosis makes blood viscosity high, blood oxygen content is insufficient, and anemia, heart disease, myocarditis can cause transient ischemic attack.

(5) Hyperlipidemia.

(6) Diabetes and complications.

(7) Excessive use of the brain.

(8) Emotional excitement.

(9) Cold (usually a group of people over 40 years old will appear).

(10) Tired (older people).

an examination

Related inspection

Tomographic imaging cerebral blood flow measurement 133Xe cerebral blood flow measurement and imaging load test cerebral blood flow perfusion imaging cerebral blood flow perfusion tomography

1. Sudden, transient, and focal neurological deficits recovered within 24 hours with no sequelae.

The main symptoms of focal neurological deficit are:

(1) hemiplegia, partial numbness, feeling fading, visual impairment, ball paralysis.

(2) dizziness, headache, tinnitus, black eyes, facial numbness, weakness of the limbs, drinking water, coughing, unclear speech.

Many of the above symptoms can return to normal in a few minutes or hours, and a few patients last for more than ten hours, but all return to normal within 24 hours.

2, repeated episodes of the above clinical symptoms repeated.

3, the age of onset is more than 50 years old, with a history of heart disease and atherosclerosis.

Differential diagnosis

Transient ischemic attack: referred to as TIA, also known as transient ischemic attack or small stroke. It refers to brain dysfunction caused by a decrease in cerebral blood flow in a short period of time. The time of each illness lasts for a short time, usually in seconds, minutes or hours, and up to 24 hours. It is often caused by symptoms and disappears quickly. It does not leave any sequelae after recovery and is easily overlooked. In fact, TIA symptoms are mild, but the consequences are serious. If not treated in time, according to statistics, about 25% to 40% of patients will have severe cerebral infarction within 5 years, which will threaten the lives of patients. Therefore, medical scientists often see it as a precursor or a dangerous sign of cerebrovascular disease.

There are many reasons for TIA, such as hypertension, hyperlipidemia, atherosclerosis, and diabetes are the most important and most common causes. Excessive use of the brain, emotional excitement, cold, fatigue can promote it.

TIA has many symptoms, light and heavy, lighter several times a year, severe times several times a day, dozens of times a month. The symptoms can be roughly divided into two groups. One is due to the weakness of the carotid artery ischemia, hemiplegia, hemiplegia, sudden blackness or blindness in one eye, aphasia, etc.; one is dizziness, nausea, vomiting, tinnitus, irritability and facial caused by ischemia of the basilar artery system. Feeling the obstacle. The above two groups of symptoms may occur separately in the same patient, or may occur sequentially or simultaneously.

After the occurrence of TIA, it must not be ignored and should be actively prevented. First of all, under the guidance of a doctor, appropriate use of traditional Chinese medicine and other vasodilators for promoting blood circulation and removing blood stasis should also be actively participated in physical exercise such as walking, jogging, Tai Chi, and practicing Qigong. But don't engage in too intense activities, and avoid overwork, keep life regular, stop drinking, strictly quit smoking, arrange diet, eat less animal fat and high cholesterol, eat soy products, fish, fresh vegetables and fruits. . You should also go to the hospital regularly to check blood pressure, blood lipids, blood sugar, cholesterol, fundus, electrocardiogram and heart function. When abnormalities are found, actively treat them.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.