Transient ischaemic attack Flashcards
1
Q
What is a transient ischaemic attack?
A
Brief episode of neurological dysfunction due to temporary focal cerebral or retinal ischaemia without infarction, e.g. a weak limb, aphasia or loss of vision, usually lasting seconds or minutes with complete recovery; symptoms last less than ~24 hours
2
Q
What is the usual cause of TIA?
A
Microemboli
3
Q
How will TIA present?
A
- Sudden loss of function, usually lasting for minutes only, with complete recovery and no evidence of infarction on imaging
- Amaurosis fugax
4
Q
What investigations are required in TIA?
A
History
Carotid duplex scanning
ECG
Blood tests
5
Q
How is TIA managed?
A
- Immediate antiplatelet therapy
- Secondary prevention interventions - antihypertensive therapy, statins
- Surgery and stenting for carotid stenosis
6
Q
A
