I have a college classmate, although he is also an internist, but this classmate is not afraid of tobacco and alcohol, but also beautiful name, timely fun. One day during his work, he suddenly said that the headache was severe, colleagues saw that his state was not right, but also knew that he had a lot of bad habits, quickly took him to do brain CT, sure enough, cerebral hemorrhage, fortunately, the bleeding site is close to the ventricle, blood flow to the ventricle to reduce part of the pressure, so there is no particularly obvious symptoms of cranial hypertension. Later, emergency surgery was performed to retrieve a life.
As we all know, blood pressure is too high and may burst blood vessels, causing cerebral hemorrhage. So how much blood pressure is high enough to cause cerebral hemorrhage?
Actually, this one varies from person to person. It does not mean that if the blood pressure is very high, cerebral hemorrhage will definitely occur, and if the blood pressure is not high, there will be no cerebral hemorrhage. High blood pressure is a major cause of intracerebral hemorrhage, but it is not the only cause. Cerebral blood vessels are like water pipes, water pipes are broken, water leaks, will be for two reasons, one is that the internal water pressure is too large, and the other is that the quality of the water pipe is too poor. Therefore, the same is true for cerebral hemorrhage. If the blood pressure is too high, the risk of cerebral hemorrhage is greatly increased, but if the blood vessel quality is too poor, such as cerebrovascular atherosclerosis, cerebrovascular malformations, cerebral aneurysms, etc., in the case of blood pressure is not too high, there may also be a risk of cerebral hemorrhage.
Cerebral blood vessels themselves have a self-regulating mechanism, and cerebral blood flow depends on the pressure difference between the brain's arteries and veins and the resistance of cerebral blood vessels. Normally, the perfusion pressure of cerebral circulation is 80-100 mmHg. Decreased mean arterial pressure or increased intracranial pressure can reduce the perfusion pressure of the brain and affect the blood supply to brain cells. But when the average arterial pressure changes in the range of 60-140 mmHg, cerebral blood vessels can keep cerebral blood flow constant through self-regulating mechanisms. This is a powerful function formed by human beings in the long process of evolution, in order to protect the most important organ of the human body - the brain.
When blood pressure exceeds 140 mmHg and exceeds the self-regulation mechanism, cerebral blood flow increases and the risk of cerebral hemorrhage increases, which is why blood pressure drops below 140 mmHg. Many people say that I have high blood pressure, I don't take medicine, and once I take medicine, I can't lose it for a lifetime. Some people say that although my blood pressure is high, I am not dizzy, refreshed, there will be no stroke, and there are not a few people who hold this kind of luck.
It should be known that cerebral hemorrhage is an end-of-life event, and its occurrence is the result of the comprehensive action of countless adverse factors, and it is a process of quantitative change to qualitative change. These adverse factors include persistent hypertension, persistent high blood sugar, atherosclerosis, fatigue staying up late, tobacco and alcohol abuse, and so on. When you are young, your blood vessels may have good elasticity and can withstand high pressure for the time being, and in the long run, the cerebral blood vessels will eventually be overwhelmed one day.
Therefore, in daily life, it is necessary to participate in physical examinations regularly, assess the health of the body, effectively control various risk factors in the body, and reduce the occurrence of cerebral hemorrhage.
1. Control blood pressure, control blood sugar, control blood lipids.
2. Quit smoking and alcohol, low-salt and low-fat diet, reduce the intake of processed sugar and processed meat.
3. Adjust the lifestyle, regular work and rest, do more aerobic activities, control the mouth, and open the legs.
For people with low blood pressure, if imaging tests find concomitant cerebrovascular malformations or cerebral aneurysms, it is also necessary to pay attention to the timely interventional treatment or surgical treatment.