A transient ischemic attack (TIA) is a temporary interruption of blood flow to the brain, and is often referred to as a "mini-stroke." TIA's are usually caused by a clot that temporarily blocks an artery, and symptoms can last anywhere between a few minutes to a few hours. The symptoms of a TIA are similar to those of a stroke, but they usually resolve without any long-term damage.
In contrast, a stroke is a longer-lasting interruption of blood flow to the brain. This can be caused by a clot that completely blocks an artery, or by bleeding in the brain. Stroke symptoms can last for days or even weeks, and can result in long-term disability or death.
The main difference between a TIA and a stroke is the length of time that symptoms last. With a TIA, symptoms usually resolve quickly, while they can last for days or weeks with a stroke. Additionally, a TIA does not usually cause any long-term damage, while a stroke can result in permanent disability or death. Finally, a TIA is usually caused by a clot that temporarily blocks an artery, while a stroke can be caused by a clot that completely blocks an artery or by bleeding in the brain.