Unsteadiness – Neither Cerebellar Nor Vestibular


Anti-GM1 IgG Antibody

Negative

Titre 1 in 1000

Anti-GD1b IgM Antibody

Positive

Titre 1 in 20,000



Cerebrospinal Fluid



  • <1 WBC/mm3


  • Total Protein 0.66 g/L (0.13–0.4)


  • Glucose 4.0 mmol/L (2.2–4.2) (matched blood glucose 4.8)


  • CSF and Serum Oligoclonal Bands – negative

Neurophysiology (Tables 11.1 and 11.2)


Table 11.1
Sensory and mixed nerve conduction studies

























































 
Amplitude (μV)

Onset latency (m/s)

Peak latency (ms)

Conduction velocity (m/s)

Right median (F3-wrist)

4

2.9

3.7

52.5

Right ulnar (F5-wrist)

3

2.3

3.0

60.5

Radial (forearm-wrist)

18

1.8

2.4

61

Right sural (calf-ankle)

9

2.8

3.5

48

Right superficial peroneal

2

2.9

3.7

45

Left sural (calf-ankle)

8

2.4

3.3

55.5

Left superfical peroneal

3

2.2

3.0

49



Table 11.2
Motor nerve conduction studies

























































 
Right

Left

Right median (SE on APB)

Distal motor latency

4.1 ms


Conduction velocity (wrist – elbow)

53 m/s


MAP (wrist)

8.5 mV


MAP (elbow)

8.0 mV


F Latency

30.6 ms


Right ulnar (SE on ADM)

Distal motor latency

4.1 ms


Conduction velocity

54 m/s


MAP (wrist)

10.5 mV


MAP (above elbow)

9.1 mV


F Latency

30.4 ms


Common peroneal (SE on EDB)

Only gold members can continue reading. Log In or Register to continue

Stay updated, free articles. Join our Telegram channel

Aug 15, 2017 | Posted by in NEUROLOGY | Comments Off on Unsteadiness – Neither Cerebellar Nor Vestibular

Full access? Get Clinical Tree

Get Clinical Tree app for offline access