Neuropathies Flashcards
Which body areas does the posterior ramus serve?
Back of neck and trunk
Which body areas does the anterior ramus serve?
Limbs, anterior and lateral trunk
What happens in knee jerk reaction in terms of neurones?
Afferent impulses carried to dorsal horn from stretch receptors
Efferent impulse cause contraction of muscle that reverse stretch
Efferent impulses inhibit contraction of antagonistic muscles
Damage to large fibre motor neurones would cause what symptoms?
Weak
Unsteady
Wasting
Reduced power
Normal sensation
Absent reflexes
Damage to large fibre sensory neurones would caue what symptoms?
Numbness
Paraesthesia
Unsteady
Normal power
vibration and JPS reduced
Absent reflexes
Damage to small fibre neurones would cause what symptoms?
Pain
Dyesthesia
Normal power
Pin prick and temp reduced
Reflexes present
Damage to autonomic fibres would cause which symptoms?
Dizzy
Impotence
N + V
Normal power
Normal senses
Present reflexes
Examples of conditions affecting peripheral nerves?
Mononeuropathy
Mononeuritis multiplex
Length dependent peripheral neuropathy
Acute demyelinating neuropathies?
Guillan Barre syndrome
Chronic demyelinating neuropathies?
Chronic inflammatory demyelinating polyradiculopathy
Hereditary sensory motor neuropathy AKA Charcot-Marie-Tooth disease
Symptoms of GBS?
Progressive paraplegia days to 4 weeks
Associated sensory symptoms proceed weakness
Pain v common
Treatment of GBS?
Immunoglobulin infusion and/or plasma exchange
Minimal role for roids
Causes of axonal neuropathies?
Idiopathic Vasculitic Paraneoplastic Infection Drug/toxins Metabolic
Causes of autonomic neuropathies?
Diabetes
Amyloid
Hereditary
GBS
Porphyria
Treamtent of axonal neuropathy?
Treat cause
Symptomatic
