Table 2

Electrophysiological data

Patient 1Patient 2Patient 3Patient 4Patient 5
Normal valueDay 13Day 21Day 43Day 81Day 37Day 10Day 21Day 40Month 5Day 13
Muscle relaxants++++
Days after withdrawal of muscle relaxant628660213321505
Conduction velocity (m/s)
Median motor40–5043505240.5NR36.552.5555558
Median sensory45–555345.554.551464142465250
Ulnar motor40–5045.55240.5NR4648
Peroneal motor40–505042.550
Suralis45–5546
Amplitude
Median motor (mV)>64.80.153.15.7NR0.253.51.144.76.4
Median sensory (μV)>107.50.90.071.7525321.650.534.614
Ulnar motor (mV)>31.20.370.08NR348
Peroneal motor (mV)>5.84.20.81
Suralis (μV)>6
Distal latency (ms)
Median motor<3.534.12.82.9NR3.11.91.81.42.5
Ulnar motor<3.52.67.34.7NR33.31.92
Peroneal<3.5
EMG Fibrillation potentialsNo recruitmentReduced recruitmentReinnervationFibrillation potentialsPolyphasic motor unit potentialsSmall and polyphasic motor unit potentialsSmall and polyphasic motor unit potentialsNormalPolyphasic motor unit action potentials with early recruitment
No recruitmentNo recruitment
NR, no response.