Stroke is one of the most common conditions causing death worldwide. There is high incidence of permanent brain damage severely affecting quality of life in affected patients. It can be a devastating event both for patient and the family. The best way to treat a stroke is to prevent stroke.
Call 9-9-5 immediately if you or a loved one is experiencing stroke symptoms.
What is a Stroke?
Strokes are serious medical emergencies that require immediate diagnosis and care from a doctor due to their potential life-threatening consequences and long-term impact on health. When a stroke occurs, time is of the essence, as the brain's oxygen supply is compromised, leading to rapid brain cell damage. Seeking treatment from a healthcare professional promptly is crucial to minimize brain damage, prevent further complications, and improve the chances of recovery.
A stroke is a condition where brain tissue dies due to a lack of blood flow. This happens when a blood vessel supplying the brain gets blocked (ischemic stroke) or bursts (hemorrhagic stroke). When the blood supply is cut off, brain cells don't receive the necessary oxygen, causing them to die. The area of damaged brain tissue is called an infarct, which “dies” due to the lack of oxygen. Understand more about stroke essentials on our blog post, "Stroke Causes, Symptoms, Diagnosis, and Treatment".
If you or someone you care about has experienced a stroke or is at risk, seeking the right medical attention is crucial. This blog post explains what you need to know about the different types of strokes, their risks, finding the right doctor, and even some tips on preventing strokes before you see a medical professional.
Common Questions About Types of Stroke
What are the different types of stroke?
A stroke occurs when blood supply to part of the brain is disrupted, preventing brain cells from receiving enough oxygen and nutrients.
The three main types of stroke are:
Ischaemic stroke
An ischaemic stroke occurs when a blood clot or narrowing of a blood vessel blocks blood flow to the brain.
This is the most common type of stroke, accounting for the majority of stroke cases.
Common causes include:
- Blood clots travelling from the heart or blood vessels
- Narrowing of the arteries supplying the brain
- Carotid artery disease
- Intracranial artery narrowing
Haemorrhagic stroke
A haemorrhagic stroke occurs when a blood vessel in the brain ruptures, causing bleeding within or around the brain.
This may happen due to:
- Long-standing high blood pressure
- Brain aneurysm rupture
- Abnormal blood vessels
- Certain medical conditions affecting blood clotting
Transient Ischaemic Attack (TIA)
A transient ischaemic attack, often called a “mini stroke”, occurs when blood flow to part of the brain is temporarily interrupted.
Symptoms may resolve within minutes or hours, but a TIA is an important warning sign because it may indicate an increased risk of a future stroke.
What is the difference between ischaemic and haemorrhagic stroke?
The main difference is what causes the disruption of blood supply to the brain.
| Feature | Ischaemic Stroke | Haemorrhagic Stroke |
|---|---|---|
| Main cause | Blocked blood vessel | Burst blood vessel |
| Type of problem | Lack of blood flow | Bleeding in or around the brain |
| Common causes | Blood clots, artery narrowing | High blood pressure, aneurysm rupture |
| Treatment focus | Restoring blood flow and preventing further blockage | Controlling bleeding and reducing pressure on the brain |
Both types of stroke require urgent medical assessment because delays can lead to permanent brain injury.
Is a TIA the same as a stroke?
A TIA is sometimes called a “mini stroke”, but it should be taken seriously.
During a TIA, blood flow to part of the brain is temporarily reduced or blocked. Symptoms may disappear completely, but the event can indicate underlying blood vessel problems.
A TIA may be a warning sign of a future stroke, especially if the underlying cause is not identified and treated.
Medical assessment may include:
- Brain imaging
- Blood vessel imaging
- Heart rhythm assessment
- Blood tests
- Evaluation of stroke risk factors
Which type of stroke is more dangerous?
Both ischaemic and haemorrhagic strokes can be life-threatening.
The severity depends on:
- Area of the brain affected
- Size of the stroke
- Speed of treatment
- Patient’s overall health
- Presence of complications
Haemorrhagic strokes may be particularly serious because bleeding can increase pressure within the skull.
Ischaemic strokes can also cause significant disability if blocked blood flow is not restored quickly.
Early recognition and treatment are essential for both types.
What causes an ischaemic stroke?
An ischaemic stroke occurs when a blood vessel supplying the brain becomes blocked.
Common causes include:
Blood clots
A clot may form in an artery supplying the brain or travel from another part of the body.
Carotid artery disease
Plaque buildup in the carotid arteries can narrow blood vessels and increase stroke risk.
Intracranial artery disease
Narrowing of arteries within the brain can reduce blood flow and contribute to stroke.
Heart-related causes
Certain heart conditions, including irregular heart rhythms such as atrial fibrillation, can increase the risk of blood clots travelling to the brain.
Understanding Different Types of Stroke
The two main types are ischemic and hemorrhagic strokes.
Ischemic Stroke
An ischemic stroke occurs when there's a blockage or reduction in blood flow to an area of the brain. This usually happens due to a condition called atherosclerosis, where fatty deposits (plaques) build up inside the blood vessels, narrowing them over time. When a blood clot (thrombus) forms and gets stuck in one of these narrowed vessels, it can block the blood flow completely or partially.
Transient Ischemic Attack (Mini-Stroke)
Another important term to know is Transient Ischemic Attack (TIA), often referred to as a "mini-stroke." Though brief, TIAs can be warning signs of more serious strokes. Knowing the differences between these types will help you recognize symptoms and take appropriate action.
Hemorrhagic Stroke
A hemorrhagic stroke is a type of stroke that occurs when a blood vessel in the brain bursts and causes bleeding within and around the brain. There are two main types: subarachnoid hemorrhage and intracerebral hemorrhage.
Subarachnoid hemorrhage happens when a blood vessel on the brain's surface bursts, causing blood to leak into the spaces between the brain and skull. This can be caused by ruptured aneurysms, arteriovenous malformations, and head trauma. Learn the difference between a subarachnoid hemorrhage and hemorrhagic stroke in our other informative article.
Intracerebral hemorrhage occurs when a blood vessel inside the brain bursts, leading to bleeding within the brain tissue, which is caused by high blood pressure (hypertension). When blood pressure increases, tiny arterioles burst resulting in the tissue beyond the rupture to die. This causes more bleeding as blood vessels in the dead tissue start to leak.
A brain aneurysm is a weak spot in the arterial wall which stretches and balloons and happens as the artery branches. At the Supreme Vascular and Interventional Clinic we offer compassionate and comprehensive care for brain aneurysm.
Find out how brain aneurysms affect stroke risk on our brain aneurysm resources page. The Ultimate Guide to Brain Aneurysm post can help you learn about the causes, symptoms, and treatments for this potentially life-threatening condition.
Finding the Right Stroke and Brain Aneurysm Specialist
Choosing the right doctor can make all the difference in your stroke recovery journey. Stroke specialists both play essential roles in stroke care who have specialized training in stroke treatment. Their expertise can lead to better outcomes.
A doctor's diagnosis is vital because strokes can present differently based on their type. Ischemic strokes, caused by blood clots, require different treatment approaches than hemorrhagic strokes, which result from bleeding in the brain. Additionally, there's a chance that what appears to be a transient issue, such as a TIA, could be an early warning sign of an impending more severe stroke.
A healthcare professional can accurately assess the symptoms, perform necessary tests, and provide a precise diagnosis, allowing for appropriate and timely treatment. Our stroke and brain aneurysm specialist in Singapore, Dr. Manish Taneja, provides stroke management and prevention as well as stroke screening. We also provide care and treatment options at our specialized brain aneurysm clinic at Supreme Vascular and Interventional Clinic in Singapore.
When to Consider a Stroke Specialist Assessment in Singapore
Stroke and TIA symptoms should always be taken seriously because early evaluation can help identify the cause and reduce the risk of future events.
Consider specialist assessment if you:
- Have experienced symptoms suggestive of a stroke or TIA.
- Have been diagnosed with a previous stroke and want to reduce future risk.
- Have been found to have narrowing of the carotid or brain arteries.
- Have risk factors such as high blood pressure, diabetes or high cholesterol.
- Have been advised to undergo further vascular imaging.
- Want to understand your stroke prevention options.
- Need a second opinion regarding stroke treatment or management.
At the Supreme Vascular and Interventional Clinic, stroke assessment focuses on identifying the underlying vascular cause through detailed evaluation and advanced imaging. Understanding whether a stroke is related to blocked arteries, bleeding, aneurysms or other vascular conditions helps guide personalised treatment and prevention strategies.
Seek emergency medical attention immediately if you experience sudden weakness, facial drooping, speech difficulties, severe headache, loss of consciousness or sudden neurological symptoms, as rapid treatment can significantly affect outcomes.
Preventing Stroke Before Seeking Medical Attention:
Prevention is always better than an ounce of cure. Adopting a healthy lifestyle plays a crucial role in reducing stroke risk. Focus on eating a balanced diet, staying physically active with regular exercise, and managing stress levels while getting enough rest.
Identify and manage risk factors like hypertension, diabetes, and cholesterol levels through lifestyle changes and medications as prescribed by your doctor. Lastly, spread awareness among family and friends about stroke symptoms, and emphasize the importance of acting fast during a stroke emergency.
Moreover, the earlier a stroke is diagnosed and treated, the better the chances of minimizing long-term disability and improving the overall quality of life for the patient. Seeking treatment now means taking proactive steps towards a better future and preventing potential recurrent strokes, which may cause further damage and complications.
Now is an excellent time to seek treatment from a healthcare professional because advances in stroke care and medical technology have significantly improved outcomes for stroke patients. Medical professionals have access to various treatment options, such as clot-busting medications, surgical interventions, and rehabilitation programs, designed to support recovery and prevent future strokes.
Remember, knowledge is power, and by understanding different stroke types, finding the right doctor, and taking preventive measures, make proactive choices for your health. By consulting a healthcare professional and neurointervention specialist in Singapore like Dr. Manish Taneja, patients receive specialized expertise in stroke care, personalized treatment plans, and ongoing monitoring to ensure the best possible recovery journey. Time is critical when it comes to strokes, and seeking medical attention promptly can make all the difference in your brain health and well-being. We are right there with you. Reach out to the Supreme Vascular and Interventional Clinic today to take control of your stroke care journey.
Stroke Resources
Stroke Prevention Tips: How to Avoid High Cholesterol
Controllable risk factors are lifestyle choices that can be changed to reduce the risk of having a stroke including managing your cholesterol.
We’ve Got You Covered for Specialized Stroke Screening, Prevention, and Management
Imagine heart attacks where the blood flow to your heart is blocked. Similarly, a stroke occurs when the blood flow to your brain is interrupted becoming a “brain attack”, affecting a blood vessel and surrounding brain function. When blood supply does not reach a certain part, brain cells begin to die. Different types of stroke include ischemic strokes or a mini stroke, a TIA (transient ischemic attack). Common risk factors include high blood pressure, which increases strain on the blood vessel and raises the likelihood of a stroke. Symptoms can vary, but may include difficulty in speaking and other changes depending on how blood flow is affected. Understanding risk factors and acting early can make a difference. It’s important to work closely with a specialist to monitor your health and reduce stroke risk.
Brain Aneurysm Resources
Discover brain aneurysm resources that go beyond the basics designed for patients. Understand the meaning of a brain aneurysm condition, the causes, symptoms, signs, and more. Connect with your brain health.
Put Brain Aneurysm on Your Health Radar
Did you experience the worst headache of your life? Thoughts could be racing through your mind. A brain aneurysm is a weak spot in a blood vessel in the brain that can change over time. The key concern is when an aneurysm ruptures, which can disrupt blood flow, affect brain tissue, and lead to serious brain damage. Controllable conditions like high blood pressure can increase this risk and treatment options can depend on the condition. Surgical clipping is one option that prevents blood from entering the weakened area. In many cases, minimally invasive treatments can also be used to restore normal blood flow and reduce risk. We have created structured guides to help you explore each stage in more detail:
A simple (computed tomography) CT scan could be just what the doctor ordered and the first step in early detection and prevention of a brain aneurysm. Come in for an easy consultation with our brain aneurysm specialist in Singapore to be on your health radar.
The Supreme Vascular and Interventional Clinic is your "go-to" facility for various neurological conditions and pain management. To arrange an appointment with Dr. Manish Taneja, our neurointervention specialist, contact us. You can also call us at (+65) 6904 8084 for a consultation.