Peripheral neuropathy Flashcards
thumb and index finger root
C6
ring and little finger root
C8
knee caps
L4 “down on all 4s”
lateral foot, small toe
S1 “the smallest 1”
dorsum of foot (except lateral aspect)
L5
genitalia
S2,3
carpal tunnel neuropathy
median nerve
median nerve
C6-T1
cubital tunnel neuropathy
unlar nerve
opens the fist
radial nerve
clinical signs of phrenic nerve neuropathy
orthopnoea and raised hemidiaphragm on CXR
sciatic n
L4-S3
common perineal neuropathy
- where’s it at risk
- signs
risk of damage as it winds round neck of fibula
foot drop
sensory loss dorsum of foot
motor supply to posterior leg
tibial
sensory supply to posterolateral leg and sole
tibial
mononeuritis multiplex
2+ peripheral nerves affected Causes: WARDS PLC Wegners Amyloidosis RA Diabetes SLE PAN Leprosy Carcinomatosis
Guillan-Barre classic cause
campylobacter
Important to monitor ? in Guillan-Barre
FVC
Elevated ? in GB
CSF protein
main causes axonal neuropathy
diabetes
alcohol
other causes axonal neuropathy
drugs
- phenytoin, amiodarone, chemotherapy
metabolic
- b12/folate deficiency, chronic uraemia, hypothyroidism
erectile dysfunction tx diabetic neuropathy
sildenafil
gastroparesis tx diabetic neuropathy
erythromycin - increases gastric emptying
what pathway is usually affected first in b12/folate neuropathy
dorsal column
