Save
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

S/sx Cerebellar Dise

Clinical S/sx of Cerebellar Dysfunction

QuestionAnswer
What are the functional areas of the cerebellar cortex? Cortex of vermis; Inermediate zone; Lateral zone
What types of movements involve the cortex of the vermis? Long axis movements (neck, shoulders, thorax, abdomen, pelvis/hips)
What movements involve the intermediate cerebellar zone? Controls muscles of the distal parts of limbs, especially hands & feet
What movements involve the lateral zone (highest level) of cerebellum? Planning of sequential movement of entire body; involved in conscious assessment of mvmt errors
What is seen with a midline zone dysfunction? Gait/stance disorders; Titubation; Rotated/tiled head posture (could be to either side); Oculomotor disorders (spontaneous nystagmus); Affective disturbances (flat/blunted emotions)
What is titubation? Rhythmic tremor or head/body that occurs several times/second
Lesion in 1 cerebellar hemisphere gives off s/sx where? Ipsilaterally
Essential function of cerebellum Coordinate all reflex & voluntary muscle activity (doesn't initiate muscle mvmt)
Is there paralysis or sensory change or atrophy with cerebellar injury? No, but there could be hypotonia & incoordination, usually in entire extremity or 1/2 of body (whole body if bilateral cerebellum)
S/sx of acute cerebellar lesion Sudden & severe; Patient can recover completely
S/sx of chronic cerebellar lesion Less severe; due to slowly enlarging tumors, alcohol, etc.
Hypotonia Lose resilience to palpation; Diminished resistance to PROM; Loss of cblr influence on stretch reflex
Postural & Gait Changes Head may be rotated/flexed; Shoulder of side of lesion lower than normal side; Wide gait; Stiff legs as compensation for hypotonia; Walk with lurch/stagger; Loses balance toward affected side
Difference b/t cblr & sensory ataxia Wide based gait & lurching/staggering could occur with both; cerebellar has no sensory issues or muscle weakness
Disturbances of voluntary mvmt (ataxia) Muscles contract irregularly/weakly (but could pass a MMT); Tremor during find mvmts (intention-type); Decomposition of mvmt; Dysmetria (fingers to nose with arms abducted)
Dysdiadochokinesia can't do alternating mvmts rapidly; Ex: couldn't pronate/supinate quickly without decomposition of mvmt
Disturbances of reflexes Pendular knee jerk; Disturbance of tone
Disturbances of Ocular movement Nystagmus; Confined to 1 plane usually (horizontal most commonly)
Disorders of Speech Cerebellar dysarthria (ataxia of laryngeal mm); Articulation is jerky & syllables often separated; Speech may be explosive & slurred
Lateral Zone Dysfunction Decomposition of mvmt; disturbed stance/gait; hypotonia; dysarthria; dysdiadokinesia; ataxia; tremor; oculomotor disorders
Lateral zone- Impaired check & rebound performs MMT normally, but when resistance removed, the body part jerks away quickly
Lateral zone- disturbances of exec functioning poor planning; trouble with working memory (short-term info); decreased verbal fluency (staccato speech, difficulty getting things to flow)
Lateral zone- impaired spatial cgnition can't remember pathway, visual-spatial memory
Lateral zone0 personality changes & linguistic difficulties Intonation when speaking; speech no longer rhythmical
Vermis Syndrome Medulloblastoma in kids; gait/stance disorders; titubation; rotated/tilted head; oculomotor disorders; affective disorders
Medulloblastoma in Children (Vermis Syndrome) in further detail Flocculonodular lobe (vestibular involvement); Mm incoordination involves midline structures (head/trunk); Child falls backward/forward; Difficulty holding head steady; +/- holding trunk steady
Cerebellar Hemisphere Syndrome- more lateral lesion, what happens? More distal limbs are involved
Cerebellar Hemisphere Syndrome s/sx where? Unilateral, involve mm on side of lesion. Muscles of limbs more involved than trunk/head
Cerebellar Hemisphere Syndrome S/sx Sway/fall to side of lesion w/ eyes open; Dysarthria/nystagmus; delayed mvmt initiation; Incoordination; Stance/gait; Low tone; Tremor; Impaired check/rebound; Problems w/ exec fxning; impaired spatial cognition; Linguistic difficulty; Personality change
Spinocerebellar Ataxia- Friedreich's Degeneration of peripheral nn, spinocerebellar paths, dorsal columns, CST tracts in cord; begins in childhood/early teen with ataxia of limb mvmt/gait, + Babinski
What happens as Friedreich's ataxia progresses? Scoliosis, pes cavus, limb weakness, loss of DTRs, position & vibration sense in limbs
Spinocerebellar Ataxia- Sporadic olivopontocerebellar atrophy Loss of nns of inferior olives, pons, & cblr cortex; ataxic gait, dysarthria, cblr tremor of trunk/lumbs; incoordinated limb mvmt; +/- multi-system atrophy
Multiple System Atrophy cblr ataxia with ANS insufficiency & Parkinsonian features
Spinocerebellar Ataxia- Alcoholic Cerebellar Degeneration Affects anterior/superior part of cblr vermis- gait ataxia, but preserved speech & UE coordinated mvmts
Posterior Inferior Cblr Artery Supplies: Most of inferior 1/2 of cblm; Inferior vermis; Central nuclei of cblm (fastigial/globose)
Anterior Inferior Cblr Artery Supplies: Middle cblr peduncle; Strip of ventral cblm b/t territories of PICA & SCA, including flocculus
Superior Cblr Artery Supplies: Superior cblr peduncle; Most of superior 1/2 of cblr hemisphere (includes lateral DCN); Superior vermis
Vascular Syndrome of SCA Most common; Ipsilateral dysmetria; limb ataxia; Horner's sx; contralateral pain/temp loss; contralateral trochlear n palsy
Vascular Syndrome of AICA Ipsilateral ataxia; Horner's sx; facial sensory impairment; contralateral pain/temp loss in limbs, & at times, dysphagia; Nystagmus (from vestibular involvement, not cblr)
Vascular Syndrome of PICA Ataxia; Hypotonia; Loss of pain-temp ssn on face ipsilaterally & loss of blink reflex after ipsilateral stim; Loss of pain/temp to contralateral side of body; Nystagmus (vestibular, not cerebellar); Ipsilateral Horner's sx; Dysphagia; Dysphonia
Cerebellar Hemorrhage usually occurs in patients with? Chronic HTN; Arteriovenous malformation; Hemorrhagic conversion of ischemic infarct; Metastases
S/sx of Cerebellar Hemorrhage Headache; N/V; Ataxia; Nystagmus; early ID is crucial!
Created by: 1190550002
Popular Physical Therapy sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards