Main
- Stroke is an acute disruption of the blood supply to the brain: cells die the faster, the longer an area remains without blood.
- The signs appear suddenly: weakness in an arm or leg, facial asymmetry, impaired speech and vision, a severe headache.
- With these symptoms, an ambulance is called immediately: the preservation of brain functions depends on how quickly help is sought.
- A neurologist deals with the diagnosis and treatment: the examination is carried out in hospital, including tomography and ultrasound of the vessels.
- The risk is increased by high blood pressure, atherosclerosis, heart rhythm disorders, diabetes, smoking and heredity.
What is a stroke
A stroke is an acute disruption of the blood supply to an area of the brain, in which its cells are damaged. Below is an analysis of what exactly happens in the body, which circumstances trigger this condition and who experiences it more often.
What happens in the body
The blood supply to an area of the brain is disrupted when the blood flow in the vessel feeding it abruptly stops or weakens. This happens through two different mechanisms: the vessel is either blocked by a thrombus, or it ruptures with haemorrhage into the surrounding tissues. In both cases, the brain cells stop receiving oxygen and nutrients and begin to be damaged. The longer the area remains without blood, the more cells are lost irreversibly. Externally, this is noticeable by sudden weakness in an arm or leg, facial asymmetry, impaired speech and loss of coordination of movements. At such a moment, a person often cannot explain what is happening to them and is unable to call for help on their own. Therefore, it is important for those around them to recognise what is happening as early as possible and to arrange immediate medical assistance.
What causes it to develop
- High blood pressure: persistently above-normal pressure wears down the walls of the brain's vessels, making them vulnerable to rupture and blockage.
- Atherosclerosis of the vessels: dense plaques are deposited on the walls of the arteries, which narrow the lumen and create conditions for a thrombus to form.
- Heart rhythm disorders: when the rhythm is disturbed, clots form in the chambers of the heart, which are carried by the bloodstream to the vessels of the head.
- Diabetes mellitus: elevated sugar levels damage the vessel wall and accelerate its wear, increasing vulnerability to damage.
- Smoking and alcohol abuse: these habits narrow the vessels and change the properties of the blood, bringing the moment of a vascular catastrophe closer.
- Older age and heredity: with the years, the vessels lose their elasticity, and a family predisposition increases the risk of encountering this condition.
Who experiences it more often
This condition is more often experienced by older people, whose vessels have already lost their former elasticity. The likelihood is noticeably increased by those who have lived for years with high blood pressure and do not monitor its level. The same group includes people with atherosclerosis, heart rhythm disorders and diabetes mellitus. Smoking and alcohol abuse add risk even for those who still feel well. Heredity also plays a role: if close relatives have had vascular events, it is worth paying closer attention to one's own condition. Men and women are affected to different degrees depending on age and concomitant conditions. The practical conclusion is simple: knowing your risk factors helps you discuss them with a doctor in advance and not miss alarming changes.
What symptoms can occur?
In stroke, symptoms appear suddenly, and the preservation of brain function depends on how quickly you react. That is why it is important to know which symptoms are used to recognise the condition and when to call an ambulance immediately.
How it is noticed at the very beginning
Stroke often manifests as sudden weakness or numbness in an arm or leg, and quite often on one side of the body. A person suddenly drops an object, cannot raise an arm, or notices that a leg has become "foreign". Sometimes relatives see facial asymmetry and drooping of the corner of the mouth, which makes the smile asymmetrical. Speech may become slurred, words get confused, or the person stops understanding phrases addressed to them. A sharp deterioration of vision in one or both eyes can also be the first signal. These changes are easy to attribute to fatigue, lack of sleep or a jump in blood pressure, so they are often underestimated. If such signs are noticed immediately and an ambulance is called, the chances of preserving brain function are noticeably greater.
The signs that occur most often
- Weakness in the limbs: sudden numbness or weakness in an arm or leg, often on one side, makes it difficult to hold an object.
- Facial asymmetry: the corner of the mouth droops, the smile becomes uneven, and this is noticeable even while talking.
- Speech impairment: the person speaks slurred, confuses words, or stops understanding speech addressed to them.
- Vision problems: vision sharply declines in one or both eyes, blurring appears or part of the picture is lost.
- Dizziness and unsteadiness: severe dizziness, loss of balance and unsteady gait make it difficult to stand and walk.
- Confusion: the person becomes disoriented or loses consciousness, which requires immediate help.
When to seek help urgently
Examinations and tests
Examination for a stroke is carried out in hospital in order to quickly determine its type and cause. The doctor examines the patient, assesses neurological functions and orders instrumental and laboratory tests.
How the examination begins
The examination begins with a neurologist's assessment, which evaluates speech, strength and sensation. The doctor checks how the arms and legs work, whether the person understands speech addressed to them and responds correctly. Separately, the symmetry of the face, eye movements and the reaction of the pupils to light are checked. Such a check takes little time and immediately shows which area of the brain has been affected. The patient is then referred for computed tomography or magnetic resonance imaging of the brain. These images make it possible to distinguish a haemorrhage from a blocked vessel and to see the area of damage. The vessels of the neck and head are then examined using ultrasound to find narrowing or an obstruction to blood flow. If the examination and images are done quickly, doctors get an answer about the cause sooner and act more precisely.
What is ordered and what it shows
What is worth preparing for the appointment
- Discharge summaries: bring previous doctors' reports and test results, they help to understand the initial state of health more quickly.
- List of ongoing conditions: write down what chronic changes in health were observed before, this is important for assessing the causes.
- Observations of relatives: relatives can describe when the first changes appeared and how they developed over time.
- Measurement data: if blood pressure or rhythm were measured regularly at home, show these records to the doctor for the overall picture.
- Questions for the doctor: formulate in advance what is unclear about the examination and the results, so that you have time to ask during the appointment.
Which doctor should I see?
Stroke care is shared between several specialists, and understanding their roles helps you choose whom to consult at different stages. Below we explain who manages the condition, what treatment consists of, and what depends on the patient themselves.
Which specialist manages this condition
The main specialist who deals with stroke and its consequences is a neurologist, while the restoration of lost functions is handled by a rehabilitation specialist. The neurologist assesses the state of the nervous system, determines which areas have been affected, and coordinates further care in the acute period. The rehabilitation specialist joins later and builds a programme for restoring movement, speech and everyday skills. If a specialist of this kind is not available nearby, at the first stage care is provided in hospital, where the patient is managed by the on-duty team. After discharge, follow-up continues with a neurologist at the place of residence, and if necessary a rehabilitation specialist is involved. At the first appointment, the doctor clarifies the circumstances of what happened, looks at which functions have been affected, and assesses how the person copes with everyday activities. Then they determine whether separate rehabilitation is needed and which specialists should be involved in it. If a neurologist is not available straight away, it is worth booking an appointment with a general practitioner, who will refer you to the right specialist.
What treatment consists of
- Restoring blood flow: measures in the acute period are aimed at returning normal blood supply to the brain and reducing tissue damage.
- Controlling risk factors: the doctor selects therapy that helps keep blood pressure and other indicators under control in order to reduce the likelihood of a repeat event.
- Observation in the rehabilitation department: here they assess how movement and speech are recovering and adjust the programme of sessions as changes occur.
- Physiotherapy and therapeutic exercise: these methods help gradually restore muscle strength, balance and the ability to move independently.
- Sessions with a speech and language therapist and a neuropsychologist: specialists work on speech, memory and attention, which is important for returning to ordinary life.
- Surgery when indicated: in certain cases surgical intervention removes the cause of the impaired blood flow, and the decision is made by the doctor based on the results of the examination.
What depends on the patient themselves
Regular follow-up with a specialist largely determines how fully it is possible to recover after a stroke. If a person attends appointments at the appointed times and follows the recommendations, the doctor notices changes in time and adjusts the programme. Missing sessions with the rehabilitation specialist, speech and language therapist or neuropsychologist slows the return of movement and speech, and this is noticeable in everyday tasks. Home exercises between meetings with the specialist consolidate what has been achieved in sessions, and without them progress is slower. It is useful for relatives to know which tasks the person performs independently and where help is needed, so as not to hold back the recovery of skills. Keeping records of how one feels and of difficulties helps the doctor assess the dynamics more accurately at the next appointment. It is worth clarifying in advance when the next consultation is and which sessions should be continued at home.
What helps prevent an exacerbation?
Everyday routine and follow-up with a doctor help prevent an exacerbation. Below is what exactly is changed in habits and what is monitored constantly.
What is changed in habits
Giving up smoking and limiting alcohol directly reduce the load on the vessels and the heart. Smoking narrows the lumen of vessels and accelerates blood clotting, so even a few cigarettes a day maintain an increased risk. Alcohol raises blood pressure and interferes with the work of the heart, and its excess is often unnoticed by the person themselves. Regular physical activity trains the heart and helps keep blood pressure within calm limits. A healthy diet with limited salt and fats reduces fluid retention and the load on the walls of the arteries. Excess weight and a sedentary day imperceptibly bring back high blood pressure, so what matters is not a one-off effort but a constant rhythm. If at least part of the habits is changed and kept up constantly, the risk of exacerbation becomes lower than with occasional efforts.
What should be kept under control
- Blood pressure: it is measured at home and recorded, because elevated values are often not felt but gradually harm the vessels.
- Taking the medicines prescribed by the doctor: they are taken constantly, and not only when feeling unwell, otherwise the protection weakens.
- Blood cholesterol and sugar levels: these indicators are checked as prescribed by the doctor, since their deviations remain unnoticed for a long time.
- Weight and waist circumference: they are assessed over time, since gradual weight gain brings back high blood pressure.
- Well-being and sleep: weakness, dizziness or interruptions in the work of the heart should be recorded and discussed with the doctor at an appointment.
- Regular preventive check-ups: they allow shifts to be noticed in time and follow-up to be adjusted before complaints appear.
How often to see a doctor
Regular follow-up with a doctor is needed even when feeling well, because many deviations develop imperceptibly. Blood pressure, cholesterol and sugar can change gradually without causing pain or obvious discomfort. The doctor assesses the indicators over time and, if necessary, adjusts the prescribed follow-up. If a person feels well, this does not mean that control is not needed: an exacerbation often comes against a background of outward well-being. Missed check-ups lead to changes being noticed late, when it is more difficult to correct them. Therefore visits are planned in advance and one comes at the appointed time, and not only when things worsen. Home records of blood pressure and well-being help the doctor see the full picture and build further follow-up more accurately.
What is worth remembering
A stroke is a condition where every hour counts, and a great deal depends on how quickly the person nearby recognises what is happening. Below is what is worth keeping in mind after reading the article.
Key takeaways
A stroke develops suddenly, and its signs are rarely gradual, so any abrupt change in speech, movement or sensation requires an immediate response. A stroke does not always manifest as loss of consciousness: a person may remain fully alert but be unable to raise an arm or say a simple phrase. A stroke in a loved one is a reason not to wait until they get better, but to call emergency help at once, because time works against the person affected. A stroke is dangerous not only in itself but also through its consequences, which are more serious the later help is started. A stroke requires those around to act calmly and clearly: notice the change, note the time, keep the person calm and call the medics. A stroke is not treated at home, and attempts to wait it out or put off calling for help until morning result in lost opportunities. A stroke is a reason to know your risk factors in advance and keep your blood pressure under control in order to reduce the likelihood of a repeat vascular event.
