TIA/Stroke Flashcards Preview

Medicine > TIA/Stroke > Flashcards

Flashcards in TIA/Stroke Deck (11)
Loading flashcards...
0
Q

Amaurosis fugax

A

Transient monocular blindness caused by ischemia to the retinal artery. Described as shade being pulled down.

1
Q

Patient with suspected TIA. Next step?

A

High resolution carotid ultrasound or MRA to evaluate for carotid artery stenosis

2
Q

TIA?

A

Onset of focal neurologic deficit with spontaneous resolution within 24 hours

3
Q

Differential for TIAs?

A

Migraine, postictal paralysis, seizures, subdural hematoma, abscess, tumor

4
Q

Types of focal neurologic symptoms?

A
1 amaurosis fugax
2 hemiparesis
3 heavy anesthesia
4 aphasia
5 dizziness/vertigo
5
Q

Most common causes stroke/TIA and which part of the brain they affect?

A
  1. Carotid atherosclerosis
  2. Cardioembolism– MCA
  3. Lipohyalinosis– lenticulostriate arteries
6
Q

Hollenhorst plaques?

A

Cholesterol emboli that often lodge in with no artery causing amaurosis fugax

7
Q

Pros and cons of noncontrast CT scan brain?

A

Pro: very sensitive at detecting acute cerebral hemorrhage

Con: insensitive to acute ischemic strokes, especially if stroke is small (<12 hours) or located in the brainstem

8
Q

Stroke prevention - drugs?

Do not use this combination of drugs?

A

Antiplatelet therapy.

Plavix or combination of aspirin and dipyridamole > aspirin alone

Plavix + aspirin does not provide greater stroke prevention and increases bleeding

9
Q

Long-term drug treatment for patients with AFIB? For patient with Lacunar infarcts?

A

Warfarin; blood pressure agents and antiplatelets

10
Q

Surgical interventions reduce long-term risk of stroke? Use especially in which patients?

A

Carotid endarterectomy. Benefits begin after two years post surgery so use in patients with long life expectancy

Decks in Medicine Class (106):