High blood pressure may not always be a sign of a stroke. In this case, a micro stroke often occurs, the symptoms of which, even for the patient, can be completely invisible.
It happens that the patient suffers a microstroke literally on his feet, without going to the doctor, even if there was blood from the nose and there was a loss of consciousness, which is extremely dangerous – these are the prerequisites for a severe form of stroke.
Symptoms of a microstroke are as follows:
- Pressure surges – indicators can increase slightly, by 10-15 units, or extremely, by 40-50.
- Dizziness, ringing in the ears, blood from the nose.
- A change in gait, there may be a slight violation of coordination.
- Deterioration in hearing and vision, impaired handwriting – older people often ignore these symptoms, attributing them to age-related changes.
- Irritability, distraction, weakness.
Symptoms of a microstroke are really insignificant, and even if a person bleeds from his nose or faints, he does not seek medical help, believing that he is simply overworked or nervous. Symptoms of a stroke are almost the same, but are more pronounced, especially if the stroke was preceded by a hypertensive crisis.
The symptoms of a severe stroke are:
At the initial stage, trembling of the extremities, numbness, impaired coordination;
- “Flies” or “stars in front of the eyes;
- Asthma attacks;
- In some cases, nosebleed;
- With the progression of pathology, convulsions and paresis are noted;
- A sharp and rapid increase in blood pressure.
If a hemorrhagic stroke develops, then the patient may burst blood vessels, and then the nose is bleeding. With a stroke of an ischemic form, the vessels never burst, since it develops slowly.
Many patients ask – at what pressure can there be a stroke? I must say again that in this case, digital indicators do not play a big role. The important thing is how many units and over what period the blood pressure has increased. A stroke can happen even in a healthy person with ideal blood pressure.
But, based on the fact that the optimal blood pressure is 120/80 mm. Hg. Art., indicators 140/90 mm. Hg. Art. evidence of the development of arterial hypertension, then with a stroke, usually the tonometer readings range from 200/110 mm Hg. up to 240/140 mm Hg Art.
It is very important not only to stop the blood flow from the nose and reassure the patient, the stroke is most effectively treated in the first three hours after the start of the process.
The sooner the patient will be taken to the hospital, the more favorable the prognosis of the further course of the disease and the greater the chances of a successful recovery from a stroke.
How does a stroke develop?
Violations of the functionality of blood vessels lead to insufficient blood supply to the brain. This causes edema, as a result – intracranial pressure rises significantly.
Brain cells begin to die, decay products enter the bloodstream, hematomas form. Hematomas press on nerve receptors, hemorrhagic stroke occurs.
This form, as a rule, develops rapidly. Ischemic stroke develops somewhat more slowly, but its consequences are the same. Brain cells do not die off so quickly, the condition of the patient will depend on the extent of the affected areas of the brain.
Hypertension and stroke are very closely related – in most cases, it is arterial hypertension that causes its development, even if the pressure during the stroke did not exceed 160 mm Hg. Art.
At risk are not only patients who have abnormally high blood pressure, but also those who suffer from irregular blood pressure, and even hypotension. Any vascular pathology leads to the destruction of their walls, loss of elasticity, the formation of plaques, growths and microcracks.
If the pressure jumps sharply, the vessel wall may burst, or a plaque may come off and clog it. In both cases, a stroke occurs. In this case, the tonometer indicators are not particularly important.
For a person with a constant pressure of 100/60 mm Hg Art. pressure increase up to 140/90 mm. Hg. Art. it can already be critical, provoking a hypertensive crisis and stroke.
The first hours of a stroke
At the first time after a stroke has begun to develop, blood pressure may be elevated. During this period, it is not advisable to lower it using antihypertensive agents if the tonometer readings do not rise above 180 mm. Hg. Art.
Increased pressure after a stroke is a natural reaction of the body, in this way it supports cerebral perfusion. Even after an extensive stroke, there remain such parts of the brain whose cells can still restore their functions – such areas in medicine are called ischemic penumbra.
Therefore, in the first 12 hours after a stroke, the pressure is not lowered – it can play an important role in maintaining the viability of some parts of the brain and reduce damage. What blood pressure in the first day after a stroke can be critical?
If the tonometer readings fall below 160 mmHg. Art., the death of brain cells occurs faster, these are very negative symptoms, the prognosis of the further course of the pathology is unfavorable. Low blood pressure after a stroke may occur due to an overdose of antihypertensive drugs.
This is noted if the patient previously took the funds prescribed by the doctor according to the usual scheme, and then received an additional dose in the hospital. Also, low pressure indicates the inability of the body to cope with pathology and repair damaged areas of the brain.
According to statistics, and increased, low blood pressure after a stroke with the same frequency leads to the death of the patient. At the same time, the numbers do not matter much, you should focus on the tonometer indicators that are familiar to the patient.
Pressure after a stroke can remain high for no more than two days. If then it does not decrease, the risk of relapse increases, the mercury column index above 180 units on the fourth or fifth day after a stroke can be an impetus for a repeated stroke. Therefore, if high pressure persists during this period, they carefully begin to lower it with mild antihypertensive drugs.
It is important to maintain mercury levels of 150 units or lower, but by no means higher, then recovery will take place without complications, and the risk of relapse will be minimized. Low blood pressure, especially for patients suffering from hypertensive type of respiratory illness, poses no threat to life.
If the pressure is kept for a long time at a high level, then the threat to life persists for another ninety days after a stroke, as well as the risk of various complications. It is very important in this dangerous period not to leave the victim alone, to protect him from stress, to constantly monitor his condition.
With a favorable prognosis, blood pressure returns to normal after 1-2 months after the hypertensive crisis has been postponed. But sometimes it is kept at 150 mm. Hg. Art. for a long time. The patient himself may suffer from various consequences of a stroke: loss of speech and memory, paralysis.
Some of them can not be eliminated until the end of life. Patients who have had a stroke for a long time experience psychological problems, often suffer from panic attacks and anxiety. Such people are advised to constantly take pressure measurements to control and not stop being monitored by a doctor. The video in this article will tell you about the causes and consequences of a stroke.Ask a Question