Stroke Types and Treatment

From time to time, blood flow to the brain may decrease or be interrupted. In such cases, a stroke condition that prevents the brain from receiving sufficient oxygen may develop. Stroke, also known as brain attack, can take several different forms. If you are wondering about questions such as the types of stroke and how they are treated, you can read on below.

What Is a Stroke?

A stroke is a medical condition caused by a blockage or bleeding in the blood vessels of the brain. It occurs when blood flow to a region of the brain is cut off, causing that region to lose its function. It is characterized by brain cells lacking oxygen and nutrients due to the interruption or reduction of blood flow to the brain tissue, which in turn impairs brain functions. A stroke is an emergency and requires rapid intervention for diagnosis and treatment. If a person suspected of having a stroke does not call 112 immediately and go to the nearest healthcare facility, it may be life-threatening. Early intervention is critical for minimizing brain damage and increasing the person's chance of recovery.

What Are the Causes of Stroke?

Various factors can play a role in the occurrence of a stroke. The main causes of stroke are as follows:

Ischemic Stroke: This is usually caused by a blood clot or narrowing of the blood vessels. A blood clot can travel to one of the blood vessels in the brain and cause a blockage there. In addition, fatty deposits can narrow the blood vessels and impair blood flow.

Hemorrhagic Stroke: Weak points in the wall of a blood vessel (aneurysm) or high blood pressure can lead to this type of stroke. When a blood vessel ruptures, blood leaks into the brain tissue and damages the surrounding tissues.

High Blood Pressure: High blood pressure (hypertension) is one of the factors that significantly increase the risk of stroke. High blood pressure can cause damage to the walls of the blood vessels, leading to hardening and narrowing of the vessels. This condition obstructs blood flow and increases the risk of ischemic stroke.

Atrial Fibrillation: Atrial fibrillation is a rhythm disorder that causes the heart to beat irregularly and rapidly. In this condition, the tendency of blood to clot in the heart chambers increases. Clots can lodge in the blood vessels leading to the brain, causing blockages and resulting in an ischemic stroke.

Heart Diseases: Heart diseases are important factors that increase the risk of stroke. Conditions such as coronary artery disease, heart valve diseases, and heart failure can lead to irregular blood flow or an increased tendency to clot, thereby increasing the likelihood of stroke.

Diabetes: Diabetes can have adverse effects on the blood vessels and nerves. Elevated blood sugar levels can damage the blood vessels and increase the risk of stroke.

Other risk factors include high cholesterol, smoking, obesity, a sedentary lifestyle, family history, and old age. These are considered factors that increase the risk of stroke.

What Are the Diagnosis and Diagnostic Methods for Stroke?

Various methods and diagnostic techniques are used to diagnose a stroke. The commonly used methods for diagnosing stroke are as follows:

Patient History and Symptoms: Diagnosis of stroke begins with gathering detailed information about the patient's symptoms. The symptoms described by the patient can help determine the type of stroke and the affected area.

Physical Examination: The doctor performs a physical examination to assess the patient's neurological condition. During this examination, the doctor tests muscle strength, reflexes, balance, vision, and speech ability.

Imaging Tests: Magnetic resonance imaging (MRI) and computed tomography (CT) may be used to diagnose stroke. These tests help determine the cause of the stroke by providing detailed images of the brain tissue. Imaging tests are used to detect possible lesions such as blood clots, bleeding, tumors, or brain damage.

Blood Tests: Blood tests can help in diagnosing stroke. For example, a glucose test may be performed to check blood sugar levels. In addition, blood tests may be used to detect blood clotting disorders or signs of infection.

Electrocardiography (ECG): The ECG device is used to evaluate the electrical activity of the heart. The reason it is used in stroke diagnosis is that heart rhythm disorders such as atrial fibrillation can increase the risk of stroke.

Transcranial Doppler (TCD): TCD is an ultrasound method used to measure blood flow in the brain. It can be used to evaluate the condition of the blood vessels in the brain during the diagnosis and treatment of stroke.

Stroke diagnosis is made through evaluation of symptoms, physical examination, and the use of appropriate diagnostic methods. An accurate diagnosis is important for planning the treatment process and carrying out interventions appropriate to the cause of the stroke.

What Are the Types of Stroke?

Stroke can occur in different types. The main types of stroke are as follows:

Ischemic Stroke: Ischemic stroke develops as a result of blockage of the blood vessels that supply the brain tissue. This is usually caused by a blood clot or narrowing of the blood vessels. Ischemic stroke is the most common type of stroke and accounts for approximately 80-85% of stroke cases.

Hemorrhagic Stroke: Hemorrhagic stroke occurs as a result of a blood vessel in the brain tearing or rupturing. Bleeding may occur due to weakening of the blood vessels or an abnormal vessel dilation called an aneurysm. Although hemorrhagic stroke is less common, it can lead to more serious conditions. Intracerebral Hemorrhage: It occurs when a blood vessel within the brain tissue ruptures. Blood leaks into the brain tissue and causes damage. b. Subarachnoid Hemorrhage: It occurs as a result of conditions such as an aneurysm or arteriovenous malformation (AVM) that cause bleeding in the space between the brain and its membranes.

Transient Ischemic Attack (TIA): A transient ischemic attack usually occurs when blood flow is temporarily interrupted. Because TIA carries a serious risk of stroke, it must be taken seriously and requires prompt medical intervention.

These types of stroke occur due to different causes and may require different approaches in terms of treatment and management.

How Is a Stroke Treated? What Are the Treatment Methods?

Rapid intervention and appropriate treatment methods are very important in the treatment of stroke. The following are some of the methods used in stroke treatment:

Ischemic Stroke Treatment:

Stroke Medication (Thrombolytic Therapy): In the case of ischemic stroke, when a blood clot blocks a brain blood vessel, thrombolytic drugs (drugs that dissolve blood clots) may be used within a certain period of time. These drugs try to restore blood flow by dissolving the clot.

Endovascular Treatment: Another method in the treatment of ischemic stroke is endovascular treatment. In this method, the vascular blockage is reached through a catheter, and a mechanical device or clot-dissolving drug is used to open the blockage.

Hemorrhagic Stroke Treatment:

Surgical Intervention: In hemorrhagic stroke, surgical intervention may be required depending on the source of bleeding. The aneurysm or arteriovenous malformation (AVM) causing the bleeding is surgically treated.

Supportive Treatment: In the treatment of hemorrhagic stroke, supportive measures are taken to control the patient's brain pressure and other vital parameters, lower blood pressure, and maintain fluid balance.

Rehabilitation: Rehabilitation after stroke is an important part of treatment. Rehabilitation methods such as physiotherapy, speech therapy, nutritional support, and muscle strengthening exercises are used. During this process, efforts are made to relearn the functions of the damaged brain region and regain strength in the affected muscles.

Post-Stroke Medication: After a stroke, medication may be used to keep blood pressure under control, prevent blood clotting, regulate cholesterol levels, and manage other related health problems.

Lifestyle Changes: To reduce the risk of stroke, a healthy lifestyle should be adopted. Exercising regularly, eating healthily, not smoking, limiting alcohol consumption, avoiding stress, and using medications as recommended by your doctor are important.

Frequently Asked Questions

You can find answers to frequently asked questions about stroke later in this article. If any of the signs of stroke (sudden headache, facial asymmetry, speech disturbance, loss of strength in the arms or legs, vision disturbance) are observed, it is necessary to go to the hospital immediately. Measures to be taken at home in stroke treatment: The patient should be kept calm, emergency medical help should be called, the patient should be placed on their side with the head slightly raised, the patient should not be moved, and no fluids or food should be given. Medication is used in stroke treatment. In the case of ischemic stroke, thrombolytic drugs and/or blood thinners may be used. In the treatment of hemorrhagic stroke, drugs that lower blood pressure may be used. To reduce the risk of stroke: Exercising regularly, eating healthily, keeping blood pressure under control, not smoking, limiting alcohol, avoiding stress, and attending regular health check-ups are important. Stroke may have a genetic predisposition, but genetic factors alone do not determine the risk of stroke. Stroke is generally a permanent condition. Ischemic strokes and many hemorrhagic strokes can cause permanent damage. However, some symptoms may be temporary, as in TIA (transient ischemic attack). If a stroke is suspected, neurology or the emergency department should be consulted. Yes, certain surgical interventions can be performed in the case of stroke. However, the treatment approach is determined according to the type and cause of the stroke. Surgical interventions may include procedures such as aneurysm repair and clearing of blockages. Stroke is a serious condition that requires emergency treatment. The experienced neurosurgeons at Hisar Hospital Intercontinental aim to provide the best treatment for patients who have had a stroke. If you think you may have stroke symptoms, you can apply to Hisar Hospital Intercontinental for early diagnosis and treatment.