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

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2
Q

What is the usual cause of TIA?

A

Microemboli

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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
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4
Q

What investigations are required in TIA?

A

History
Carotid duplex scanning
ECG
Blood tests

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5
Q

How is TIA managed?

A
  • Immediate antiplatelet therapy
  • Secondary prevention interventions - antihypertensive therapy, statins
  • Surgery and stenting for carotid stenosis
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6
Q
A
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