welcome to disease section for stroke 

Stroke types
Stroke types

This image represents difference in the appearance of blood vessels during a stroke or during atherosclerosis. An ischemic stroke occurs due to blockage of blood flow by a blood clot. A hemorrhagic stroke occurs when a blood vessel in your brain ruptures or breaks.

Ischemic vs hemorrhagic Stroke
Ischemic vs hemorrhagic Stroke

This diagram shows the effect on blood vessels in brain during ischemic and hemorrhagic stroke.

Warning signs of stroke
Warning signs of stroke

Numbness or weakness in your face, arm, or leg, particularly on one side, confusion or trouble understanding people, difficulty in speaking or seeing with one or both eyes, problems in walking or staying balanced or coordinated, dizziness, headache that comes on for no reason are common warning signs of a stroke.

Portrait of a senior man suffering from stroke
Portrait of a senior man suffering from stroke

The most common signs of stroke involves paralysis and trouble speaking or understanding speech, which is shown in this image as an arbitrary illustration. If you notice any such signs, you must call the doctor immediately.

Time dependent effect of stroke
Time dependent effect of stroke

The first few hours after a stroke are quite critical. If immediate medical help is provided to the patient then chances of brain damage decreases and the patient may recover faster.

Types of stroke
Types of stroke

Two causes of stroke - a bleed type stroke (hemorrhagic stroke) and a clot type stroke (ischemic stroke).

Ischemic stroke
Ischemic stroke

This picture represents an ischemic stroke in the cerebral artery. An unstable plaque formation and thrombus in the blood vessels leads to atherosclerosis.

Stroke - Progression of atherosclerosis
Stroke - Progression of atherosclerosis

Stroke in the cerebral artery slowly progresses to atherosclerosis by the deposition of fatty streak. This results in thrombus in the artery.

Normal cerebral artery vs artherosclerosis
Normal cerebral artery vs artherosclerosis

It compares a normal cerebral artery and an artery with atherosclerosis containing a blood clot. The blood flow gets blocked due to thrombus.

Blood supply of the brain
Blood supply of the brain

The entire blood supply of the brain and spinal cord depends on two sets of branches from the dorsal aorta. The vertebral arteries arise from the subclavian arteries, and the internal carotid arteries are branches of the common carotid arteries.

Atrial fibrillation and stroke
Atrial fibrillation and stroke

Atrial fibrillation is a type of irregular heartbeat, which usually occurs in the two upper chambers of the heart. These irregular heartbeats can lead to blood clot in the heart and potentially form a clot, which can travel to a person’s brain and cause a stroke.

Cerebral infarction
Cerebral infarction

A cerebral infarction involves obstruction in the brain blood vessel due to a blood clot that forms in a cerebral artery, at an atheromatous plaque.

CT scan of brain
CT scan of brain

This image represents a collection of CT scan of brain and images of various brain diseases (Left to Right : Normal brain, Brain tumor, Cerebral infarction, Intracerebral hemorrhage)

Blood vessels of brain
Blood vessels of brain

Blood vessels in the brain start bulging and rupturing due to an aneurysm which leads to leaking of blood into the cerebral hemisphere causing a stroke.

Cholesterol Levels
Cholesterol Levels

If your cholesterol levels are very high, then you are at risk of developing various circulartory disorders such as heart attack, stroke and artherosclerosis.