What is the primary symptom of a transient ischemic attack (TIA)?

The primary symptom of a transient ischemic attack (TIA) is temporary neurological dysfunction. A TIA is often referred to as a "mini-stroke" because it presents with similar symptoms to a stroke but does not result in permanent damage. The symptoms of a TIA typically last for a few minutes to a few hours and resolve completely within 24 hours. This transient nature is critical in distinguishing it from a stroke, where neurological impairment can be permanent.

The neurological dysfunction can manifest in various forms, including weakness on one side of the body, difficulty speaking, or sudden vision problems. Recognizing these temporary symptoms is essential as TIAs often serve as warning signs for potential future strokes.