Best Doctors for Brain Stroke Treatment in Kolkata

The cause of a stroke depends on its type. 

• Ischemic strokes usually occur when clots block the blood vessels in the brain. These clots can form for different reasons like fatty deposits in the blood vessels (atherosclerosis), clotting disorders, irregular heartbeats (atrial fibrillation), certain heart defects, or problems in small brain blood vessels.
• Hemorrhagic strokes occur when a blood vessel in the brain ruptures and causes bleeding. High blood pressure, brain aneurysms, brain tumours, or diseases that affect blood vessels in the brain can lead to hemorrhagic strokes.
• Some individuals may experience a temporary disruption of blood flow to the brain, known as a transient ischemic attack (TIA), which does not lead to lasting symptoms.
• Particular lifestyle and health conditions can also increase the risk of stroke. These include high blood pressure, high cholesterol, diabetes, smoking, migraines, and drug misuse.

Ischemic Stroke (Clots):

• It happens when the vessel carrying blood to the brain gets blocked.
• This type makes up 87% of all strokes.

Hemorrhagic Stroke (Bleeds):

• It occurs when a weak blood vessel ruptures.
• Usually caused by either aneurysms or arteriovenous malformations (AVMs), which are weak spots in blood vessels.
• Uncontrolled blood pressure is the leading cause of this type of stroke.

Transient Ischemic Attack (TIA):

• A temporary clot causes it and is often called a "warning stroke".
• Treat this as a serious sign that a stroke might happen in future.

Brain Stem Stroke:

• It happens in the brain stem and can affect both sides of the body.
• It can leave a person in a state where they can't speak or move below the neck, known as a "locked-in" state.

Cryptogenic Stroke:

• This stroke will occur without a known cause.