Lesson 1 Flashcards
Diagnostic tests
CSF analysis contraindications
↑ICP
clotting problems
Chiari-like malformation
AA instability or trauma
Serology for infectious dz dogs
Neospora
Toxoplasma
CDV
Cryptococcus
Tick borne dz
Serology for infectious dz cats
FIV
FeLV
FIP
Toxoplasma
Cryptococcus
Myelography
IVDD
Guide surgery (which site and disc)
Neuro complications
Computed tomography
Trauma
Acute IVDD in chondrodystrophic
Spinal stabilisation
Immune mediated dz
Acetylcholine receptor antibodies titres
gold standard diagnostic tool for acquired Myasthenia Gravis
Type IIM antibodies titres gold standard for Masticatory Muscle Myositis
Electromyography
records spontaneous muscle electrical activity
normal muscle at rest is electrically silent
destabilization of the muscle cell membrane results is spontaneous discharge
ID denervated/ damaged muscles
Nerve conduction velocities
Evaluates peripheral nerve function
Calculated by stimulating nerve at least at 2
different points
Amplitude - Axons
Velocity - Myelin
Repetitive nerve stimulation
Evaluates n-m junction
Series of 10 repetitions of stimulus
Myasthenia gravis
Electroencephalography
Records spontaneous electrical activity in cerebral cortex
5-12 electrodes in head
Seizures / brain death
Paroxysmal Dyskinesia
(movement disorder)
Recurrent involuntary movement without consciousness changing
Basal nuclei signalling abnormality
Idiopathic and genetic (CKCS)
Other non seizures
Idiopathic head tremor (boxer)
Episodic muscle stiffness
Narcolepsy
Vestibular episodes
Seizure = forebrain
Other forebrain signs
Contralateral proprioception deficits
Head turn/ circling towards lesion
Seizure causes
Reactive - metabolic/ toxic
Idiopathic - no interictal neuro abnormalities (normal neuro outside of post ictal)
Structural - cerebral pathology (inflammation, neoplasm, trauma)
Progression of deficits
Improve- vascular, trauma, toxin
Worsen- inflammation, metabolic (can be both), degenerative, neoplasm
Lateralisation of deficit
Asymmetrical - Vascular, inflammation, trauma, metabolic, neoplasia
Symmetrical- Metabolic, toxin, hypoxia, degenerative
Initial neuro assessment
Hx - description of episodes, non ictal changes
Exam - abn asym - structural lesion
abn sym - metabolic/
bilateral lesion
Bloods - extra cranial causes (bile
acid stim test
MRI/ CSF - if asym deficits
Seizure tx
MOA - inhibition by facilitating GABA
Less excitatory transmission
Modulate cell membrane conductance
Phenobarbitone (GABA MOA)
Bromide (Cell mem) (NOT FOR CATS)
Imepitoin (GABA MOA)
Emergency seizure management
Diazepam - IV
Phenobarbitone - IV (20min)
Ket
Propofol - abolish seizure signs
Neuro grades
1 - pain (norm neck), no deficits
2 - ataxic paretic
3 - support needed for ambulation
4 - paralysis
5 - loss of pain perception
Vertebral location
C1-5: norm to high TL and PL reflexes
C6-T2: less TL/ norm to high PL
T3-L3: norm TL/ norm to high PL
L4-S3: norm TL/ less PL
Per acute presentations
Vascular - FCE (dog), Stroke (cats),
Trauma - Acute non compressive annulus pulposus extrusion
Supportive care and physio, no Sx
Ischaemic myelopathies
SC blood supply interrupted
Per acute, not painful
Lateralised
Dogs - FibroCartilagenous Embolism
ANNPE
Acute non compressive annulus pulposus extrusion
Trauma
Acute, not pain/ progressive
Cord contusion with minimal compression