Below is info copied and pasted from wikipedia, I hope it is of some help to ur ?
From Wikipedia, the free encyclopedia
Transient ischemic attack
A transient ischemic attack (TIA, often colloquially referred to as “mini stroke”) is caused by the changes in the blood supply to a particular area of the brain, resulting in brief neurologic dysfunction that persists, by definition, for less than 24 hours; if symptoms persist then it is categorized as a stroke.
Symptoms vary widely from person to person, depending on the area of the brain involved. The most frequent symptoms include temporary loss of vision (typically amaurosis fugax); difficulty speaking (aphasia); weakness on one side of the body (hemiparesis); and numbness or tingling (paresthesia), usually on one side of the body. Impairment of consciousness is very uncommon.
Why were you put on Plavix in the beginning... for heart attack or stroke? Absolutely going off of it can lead to a mini-stroke/TIA, but going odd wont CAUSE one. Unfortunately you have to go off before a biopsy as it makes your blood thinner and there is too much risk of bleeding. Don't worry too much about the TIA, most have no long standing effects unless you have a LOT of them. So you want to go back on the Plavix and DON'T miss any doses! It should work right away.
The TIAs I've seen personally- and being a gerontology nurse I've seen a lot- scare the bejeezus out of everyone, as the person usually looks like they're either having a seizure and/or like they've died right on the spot. Great thing is they start responding pretty quickly, and by the next day it's like nothing has happened. The brain is a funny thing. Good luck, and take that Plavix!
I agree with you...my dad was taken off plavix due to a bad bladder infections which caused some bleeding. He was taken off and withing a month and a half had a min-Tia-stroke-episode. He's back on it...Thank God he's doing better.