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Table 1 Patient neurophysiological data.

From: Cryoglobulinaemic neuropathy: a further cause of bilateral sciatic neuropathy

RMN    LPN    RTN   
   NV    NV    NV
DL 4.5 ms > 4.6 ms DL 4.4 ms < 4 ms DL 4.8 ms < 4.5 ms
MAP 9 mV > 8 mV MAP 1.4 mV > 4.5 mV MAP 3.5 mV > 5 mV
MCV 48 m/s > 50 m/s MCV 37 m/s > 43 m/s MCV 41 m/s > 43 m/s
SCV 42 m/s > 43 m/s       
SAP 35 μV > 36 μV       
RPN LSN RSN       
ND ND ND       
EMG RAPB RTA LTA RG LG    
  N + + ++ +    
  1. RMN: right median nerve; LPN: left peroneal nerve; RTN: right tibial nerve; RPN: right peroneal nerve; LSN: Left sural nerve; RSN: right sural nerve.
  2. DL: distal latency; MAP: muscular amplitude potential; MCV: motor conduction velocity; SCV: sensory conduction velocity; SAP: sensory amplitude potential.
  3. ND: not detectable. NV: normal values.
  4. RAPB: right abductor pollicis brevis muscle; RTA: right tibialis anterior muscle; LTA: left tibialis anterior muscle; RG: right gastrocnemius muscle; LG: left gastrocnemius muscle.
  5. N: no pathological neurogenic features; +: mild neurogenic features; ++: moderate neurogenic features.