Stroke, also known as stroke, is a disorder of cerebral blood circulation that starts suddenly.
Stroke is characterized by high morbidity, disability and mortality, with a disability rate of up to 75%. Unlike other organs in the body, brain tissue is very sensitive to ischemic and hypoxic damage.
As long as there is complete hypoxia for more than 3 to 5 minutes, brain nerve cells will die and are not renewable.
A large number of clinical studies have shown that for patients with cerebral infarction, the really safe and effective time to save the function of nerve cells is 3-6 hours, and taking thrombolytic treatment beyond this time will risk a great deal of secondary cerebral hemorrhage.
Therefore, it has long been proposed internationally that “time is brain” and stroke is the “emergency of all emergencies”.
Before the onset of a stroke, some patients may have an increase in blood pressure, blood pressure fluctuations, headache, dizziness, numbness and weakness of the arms and legs, and so on.
When a patient has an aura of transient ischemic attack, he or she should be allowed to rest quietly and treated actively to prevent it from developing into cerebral thrombosis. When preventing stroke, attention should also be paid to climatic factors, because seasonal and climatic changes can make hypertensive patients emotionally unstable and their blood pressure fluctuates, triggering strokes, and it is even more important to guard against strokes at such times.
If patients can take good measures before the stroke, they can effectively reduce the damage. How can measures be taken in advance? If you can know the precursors of stroke attack, you can take measures in advance.
Here we will see what are the precursors of stroke?
1. The Appearance Of Unbearable Limited Headache, Or The Form Of Headache Is Completely Different From Usual
If the headache changes from a full headache to a limited headache, an intermittent headache to a continuous attack, or a headache accompanied by nausea and vomiting. This is often a precursor to subarachnoid hemorrhage or cerebral hemorrhage.
The cause of its occurrence is related to the patient’s sudden rise in blood pressure before the stroke and the dilation of intracranial aneurysm and its adjacent arteries, which stimulates the trigeminal nerve.
It is usually accompanied by headache and is also very common, characterized by mostly jet vomiting. In case of vomiting coffee-colored (soy sauce-like or brown-black) liquid, the condition is very serious.
3. Numbness Of Limbs
In addition to cervical spondylosis and diabetes, if there are symptoms such as headache, vertigo, light-headedness and tongue swelling, or if there is a history of hypertension, hyperlipidemia, diabetes or cerebral arteriosclerosis, more attention should be paid to be alert to the occurrence of stroke, sudden onset or unilateral limb weakness, unstable standing, soon after remission and then onset should be beware.
4. Instant Blindness Or Blurred Vision
This sign usually lasts for a very short time, only a few seconds, or a few minutes. The reason for its occurrence is related to the patient’s lack of blood supply to the brain before the stroke, which affects the function of the visual center.
5. Slurred Speech
One of the common symptoms is sudden inability to speak or spit out words, or even not to speak, but it lasts for a short period of time, up to 24 hours, and should be taken seriously, as well as unexplained slanting of the corners of the mouth, slurred speech or tongue stretching deviation should be noted.
6. Sudden Numbness, Weakness, Unstable Holding, Drooping Of The Corners Of The Mouth & Drooling Of One Side Of The Face Or Upper & Lower Limbs
The cause is related to the patient’s lack of blood supply to one hemisphere before the stroke, which affects the brain’s function of regulating limb activities. For example, an elderly man suddenly found numbness and weakness in the back of his hand while playing tennis.
Whether it is cerebral hemorrhage or cerebral infarction, headache is very common and is also an important symptom and signal of stroke.
8. Unexplained Falls In Middle-Aged & Elderly People
Due to cerebral vascular sclerosis, cerebral ischemia and motor nerve failure can produce ataxia and balance disorders, which can easily lead to falls and is also a stroke aura symptom.
9. Yawning Constantly
If there is no fatigue, lack of sleep and other reasons, there is continuous yawning, which may be due to cerebral arteriosclerosis, ischemia, causing chronic ischemia and hypoxia of brain tissue, which is a precursor of stroke patients.
Nasal bleeding symptoms in middle-aged and elderly people may be an alarm of impending stroke in hypertensive patients. After medical observation, excluding trauma and inflammation factors, hypertensive patients in repeated nosebleeds, may occur cerebral hemorrhage. Many nosebleeds are caused by unstable blood pressure, and failure to prevent them will increase the chance of stroke.
11. Mental Changes
Such as drowsiness, once the middle-aged and elderly people appear unexplained sleepy drowsiness phenomenon, should pay great attention to, is likely to be the precursor of ischemic stroke. Changes in mental status, such as becoming silent or impatient, or experiencing transient mental decline, are related to cerebral ischemia and may be a precursor of stroke.