900. Stroke Flashcards
What is the definition of the TIA?
An brief episode of neurological dysfunction caused by focal brain or retinal is he AMIA. Clinical symptoms typically last less than 1 hour and there are no signs of infarctions
What is the definition of a stroke?
Check you pictures boy
What are the different classes of strokes
Ischemiac: 85%
Heamorrhagic:(15%)
PrimWry intercerabal heamorghage-70%
AV malformation/ sub arachnoid- 30%
What causes ischemiac strokes?
Carotid dissection
Carotid plague with emboli
Cardiogenic emboli
Penetrating artery disease
What is important to know about the acute signs and symptoms of stroke?
The signs and symptoms fit into the territories and functions of the brain
What do you want to find out about the stroke on history?
Neurological defects Where is the lesion Way is the lesion Why has it occurred Potential complications
What does wernickes area do?
What does Broca’s area do?
Wernickes- understands speech comprehension
Broca’s- controls speech
What areas deals with comprehension of language?
Parietal lobe
What are the frontal lobe functions?
Higher lobe functions
Motor
Speech
Memeory
Parietal lobe
Sensation
Awareness of the body
Spatial orientation
Ability to reform learned motor tasks
Temporal lobe?
Auditory
Comprehension of speech
Learning and emotion
Why do small strokes sometimes give big deficits?
Fibres can be closely packed together
Occipital?
Visual cortex
Visual perception
What is the difference between dysarthria and dysphasia?
Dysarthria- problems with speech muscles
Dysphasia- impairment of language
What is total anterior circulations syndrome
Complete hemispheresis/numbness
Loss of vision on one side
Loss of awareness on one side
Dysphasia
What is a partial anterior circulation syndrome?
Branch of a main artery is affected
In between LACS and TACS
2 of 3 TACS criteria
One higher cortical defect (in attention or dysphasia)
Monoparesis
What is a lacs?
Lacunae syndrome- affects one of the small arteries
Movement as sensation pathways- weakness of faces and arms and legs
May have dysarthria
Ataxic hemiparesus
No affect on higher function
What is a POCS?
Posterior circulation syndrome
Affects posterior artery
Loss of balance Vertigo Double visual Vision loss Dysarthria
What type of stroke has the highest mortality?
What type of stroke has a high recurrence rate?
TACS- 60% mortality
17% higher early
9% constant
What are the non modifiable risk factors for stroke?i
Previous stroke
Male
Previous age
Family history
What are the modifiable risk factors
Fat Smoking Eating poor Couch potato Diabetic Drugs (illicit or OTC) High blood presssure A fib
What are the best antivuagukatn strokes for stroke?
Apixoban
Rivoroxaban
What mimics strokes
THE 7 S’s
Seizures Syncope Sugar Sepsis Severe migraine Space occupying lesions Psychological
