Table 1: Electrophysiological Characteristics of Case 1 at Symptom Onset and After 15 Days

Nerve Phase Side DL (ms) Distal CMAP
Amplitude (mV)
Conduction Velocity SNAP
Amplitude (µV)
Motor (m/s) Sensory (m/s)
Median Onset Left 4.5 1.5 52.5 50.3 35.1
Right 4.7 2.0 51.6 49.7 34.5
Day 15 Left - 0 - 51.2 28.8
Right - 0 - 53.4 31.4
Normal values 3.5(0.3) 7.0(3.0) 57.7(4.9) 55.5(2.6) 38.5(15.6)
Ulnar Onset Left 3.5 2.1 51.8 51.0 27.5
Right 3.2 1.8 50.9 50.6 25.2
Day 15 Left - 0 - 50.4 30.1
Right - 0 - 49.9 28.4
Normal values 2.6(0.4) 5.7(2.0) 50.2(3.1) 49.2(2.4) 35.0(14.7)
Tibial Onset Left 13.2 5.5 49.0
Right 12.5 4.5 50.5
Day 15 Left 13.5 4.8 48.7
Right 12.8 4.1 49.1
Normal values 12.1(1.5) 5.1(2.2) 48.5(3.6)
Sural Onset Left 53.5 22.8
right 49.5 18.2
Day 15 Left 54.5 20.5
right 50.5 16.1
Normal values 51.1(5.9) 17.2(6.7)
Phrenic Onset Left 7.0 0.05
Right - -
Day 15 Left - 0
Right - 0
Normal values 6.5(0.8) 0.7(0.2)

Normal values are given as mean(SD).