Flashcards in Stroke #2 Deck (46)
What's the most common cause of long term disability?
What is a stroke?
Acute onset of neurologic dysfunction secondary to abnormality in cerebral circulation. Resultant symptoms correspond to the involvement of certain brain areas
What is a CVA?
Refers to symptoms, Problems in the brain
Terms are used interchangeably with stroke
What are the types of CVA?
Ischemic-tissue died due to lack of blood flow
How long do symptoms of TIA last?
no permanent damage
What side does a CVA effect?
Right CVA = Left hemiporesis
What's in the Frontal Lobe?
Motor cortex and premotor cortex
Broca's area (motor aspects of speech)
Emotions & Behaviors
Inability to attend to a task
What happens when you have a problem in the frontal lobe?
Memory-(ability to store experiences and perceptions for later recall)
Confabulation (inappropriate words or fabricated stories)
Perseveration (Repetition of words, thoughts or acts not related to a context)
Executive functions (planning, acting and performing a task)
What happens if there is damage in the pre-frontal cortex?
Impaired organization and sequencing
What is multi-infarct dementia?
Scattered areas of brain are damaged
What is delirium?
Acute confused state
What does the temporal lobe consist of?
Wernicke's area (language reception & comprehension)
What are the types of Aphasia?
Receptive Aphasia (Wernicke's) = Difficulty understanding spoken or written words
Expressive Aphasia (Brocca's) = Inability to speak or express language
Global - impairments in both
What is Dysphagia?
What happens when there are problems in the parietal lobe?
Neglect (ignore the affected side of body)
Sensory cortex and somatosensory cortex
Perception and spatial relationships
Integrates sensory and visual information (Aphasia, Agnosia-ability to identify common objects by feeling it)
What is apraxia?
Deficits in motor planning
-Unable to complete sequence
-May take longer to learn task
-difficulty initiating and performing a task
What are the types of Apraxia?
Ideomotor - Can't perform a task when asked, but can do it automatically
Ideational - Purposeful movements not possible (automatically or on command)
What is Dysarthria?
Lesion in a location that mediates speech production
Volitional and automatic actions impaired (chewing, swallowing, slurred speech)
What is neglect?
Patient does not register stimuli from one side of the body
(vision may be intact but cant process info)
Denial of deficits are often present
What is in the occipital lobe?
Primary visual cortex and visual association area
What are some problems if the stroke is in the occipital lobe?
Visual field cuts
Hallucinations & Illusions
What is a Homonymous hemianopsia?
Pt will have deficits on right or left of both sides of eye
What happens with a Cerebellum stroke?
Coordinates voluntary movement
Balance and equlibrium
Dysdiadochokinesis-(rapid alternating movement)
What happens with brain stem strokes?
Attention, arousal and consciousness go out
What is Ataxia?
Drunken sailor gait (need to call a taxi)
Where do most of the problems occur in the brain?
Circle of willis
(Middle cerebral Artery)
What does the middle cerebral artery (MCA) supply?
Frontal, parietal, temporal lobes
What will you see with a MCA stroke?
Aphasia (Wernicke's and brocca's)
Ataxia (drunken sailor gait)
Loss of depth perception
Agnosia (inability to process sensory info, can't tell what object is by feeling it)
Contralateral homonymous hemianopsia
The more proximal the infarct the more extensive the damage
What does the anterior cerebral artery (ACA) supply?
Frontal and Parietal