» » Transient Ischemic Attack - Risk Factors Symptoms Diagnosis Treatment FAQs

Transient Ischemic Attack

Rating : 12345
Rate This Article : 1 2 3 4 5
G J 4
A -A +


Transient Ischemic Attack is a mini stroke caused due to interruption in the blood supply to the brain leading to symptoms which last for a short time.

The consequence of a brief interrupted blood supply to the brain is called a Transient Ischemic Attack. It is also called a warning stroke or a mini stroke.

Transient Ischemic Attack

The brain requires a constant supply of glucose and oxygen which is delivered by the blood. The brain accounts for 1-2 % of the body weight, receives 15% of the cardiac output and accounts for 20% of the total body oxygen consumption. It can be deprived of oxygen by -

Hypoxia- caused by low partial pressure of oxygen, impairment of the blood’s oxygen carrying capacity or inhibition of oxygen use in the tissue

Ischemia- Interruption in the blood flow, transient or permanent

Transient ischemic attacks are episodes of stroke symptoms that last very briefly. They last for less than 24 hours, though most of them last less than one hour.

The causes of transient ischemic attack are the causes of stroke too, but they may also herald stroke. Hence, they need to be considered as a medical emergency and addressed urgently.

The disruption to the blood supply to the brain can be because of -

Thrombosis which is the formation of a clot in the intracranial blood supply.

Embolus which occurs when the clot dislodges, travels in the vessels and lodges elsewhere compromising the blood supply to that area.

Hemorrhage or bleeding in the brain.

In a transient ischemic attack, the blocked vessel opens up and blood supply is restored. When blood flow is restored quickly, the patient experiences only transient symptoms.

It is prudent to hospitalise the patient, investigate and start the requisite medication to avoid a full blown stroke.

Treatment depends on the cause, correction of the modifiable risk factors, lifestyle changes and steps to prevent a stroke.

Post your Comments

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
User Avatar
* Your comment can be maximum of 2500 characters
Notify me when reply is posted I agree to the terms and conditions

Ask an Expert

If you have a question about health related issues, you can now post it in our Ask An Expert section on our community website and get answers from our panel of experts.

Join Our Online Health Community:

Recommended Groups Members Related Discussions
By registering with Medindia you become part of our global health community. Make new friends and share and discuss your health issues, with 206246 other members across 445 support groups.

You May Also Like

View All

Show More Related Topics y