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)

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

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