Transient ischemic attack (TIA)
A TIA is a short-term blockage in blood flow that clears up on its own. The symptoms are the same as for stroke. However, they last no more than a day, usually no more than 15 minutes. TIA can be a warning sign before a full stroke.
Transient ischemia (iss-KEE-mee-uh) is sometimes called:
- Transient ischemic event
In childhood, TIA may be related to abnormal arteries in the brain.
Cerebral venous sinus thrombosis (CVST)
A CVST is a blood clot that blocks a vein or channel (venous sinus) that drains blood from the brain. CVST can cause a stroke if blood backs up behind the clot. The backup can also lead to bleeding in the brain.
Another name for CVST is cerebral sinovenous thrombosis (CSVT).