TIA
Medical abbreviation · Neurology
| Stands for | Transient ischemic attack |
|---|---|
| Categories | Medical |
TIA stands for Transient ischemic attack, a neurology abbreviation.
Brief episode of neurological dysfunction, such as one-sided weakness, slurred speech or loss of vision in one eye, caused by a temporary interruption of blood flow that resolves without leaving permanent brain damage. It is a medical emergency because it often precedes a full stroke, with the highest risk in the first 48 hours.
Example: Twenty minutes of right arm weakness and word-finding difficulty, fully resolved; admitted for TIA workup with MRI and carotid imaging.
Usage notes
The classic time-based definition required symptoms to resolve within 24 hours. In 2009 the American Heart Association and American Stroke Association adopted a tissue-based definition: transient symptoms without acute infarction on imaging, because MRI shows that many "24-hour" events actually cause small strokes. Under this definition, an event with a new lesion on diffusion MRI is a stroke regardless of how quickly symptoms resolved. Lay terms include "mini-stroke," which can wrongly suggest the event is harmless; risk tools such as ABCD2 help triage urgency.
Related abbreviations
More neurology abbreviations
- SSEP – Somatosensory evoked potentials
- SUDEP – Sudden unexpected death in epilepsy
- Sz – Seizure
- TBI – Traumatic brain injury
- TCD – Transcranial Doppler
- TGA – Transient global amnesia
- TLE – Temporal lobe epilepsy
- TM – Transverse myelitis
- TN – Trigeminal neuralgia
- tPA – Tissue plasminogen activator (alteplase)
- TS – Tourette syndrome
- TTH – Tension-type headache
See all 131 neurology abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.