Table 1.
Electrophysiological parameters of the case before the treatment with intravenous immunoglobulin.
| Motor nerve | Segment | Lat (ms) | Amp (mV) | CV (m/s) | Dist (mm) |
|---|---|---|---|---|---|
| Medianus (L) | Wrist-APB | 4.00 | 3.6 | 55.0 | |
| Elbow-Wrist | 8.75 | 3.6 | 48.4 | 230 | |
| Medianus (R) | Wrist-APB | 4.29 | 5.1 | 55.0 | |
| Elbow-Wrist | 8.92 | 4.7 | 47.5 | 220 | |
| Peroneus (L) | Ankle-EDB | Null | Null | ||
| Fib.head-Ankle | Null | Null | |||
| Peroneus (R) | Ankle-EDB | Null | Null | ||
| Fib.head-Ankle | Null | Null | |||
| Tibialis (L) | Ankle-Abd hal | Null | Null | ||
| Tibialis (R) | Ankle-Abd hal | Null | Null | ||
| Ulnaris (L) | Wrist-ADM | 3.23 | 4.4 | 55.0 | |
| Elbow-Wrist | 7.31 | 4.9 | 52.7 | 215 | |
| Ulnaris (R) | Wrist-ADM | 3.05 | 5.0 | 55.0 | |
| Elbow-Wrist | 6.79 | 5.3 | 56.1 | 210 | |
| Sensory nerve | Segment | Peak lat (ms) | Amp (uV) | CV (m/s) | Dist (mm) |
| Medianus (L) | Wrist-Dig II | 2.35 | 27.0 | 48.9 | 115 |
| Medianus (R) | Wrist-Dig II | 2.64 | 22.3 | 47.3 | 125 |
| Radialis (L) | EPL tendon-Wrist | 1.65 | 20.9 | 54.5 | 90.0 |
| Radialis (R) | EPL tendon-Wrist | 1.50 | 20.9 | 66.7 | 100 |
| Superficial peroneal (L) | Lower leg-Ankle | 2.56 | 3.9 | 35.2 | 90.0 |
| Superficial Peroneal (R) | Lower leg-Ankle | 2.64 | 5.4 | 36.0 | 95.0 |
| Suralis (L) | Mid.lower leg-Lat.Malleolus | 2.19 | 4.4 | 38.8 | 85.0 |
| Suralis (R) | Mid.lower leg-Lat.Malleolus | 2.07 | 3.7 | 38.6 | 80.0 |
| Ulnaris (L) | Wrist-Dig V | 1.98 | 24.3 | 48.0 | 95.0 |
| Ulnaris (R) | Wrist-Dig V | 2.14 | 26.9 | 49.1 | 105 |
| F wave | Segment | M-Lat (ms) | F-Lat (ms) | Amp (uV) | F (%) |
| Medianus (L) | Wrist-APB | 3.5 | 31.4 | 59.1 | 33.3 |
| Medianus (R) | Wrist-APB | 4.1 | 28.5 | 153 | 73.3 |
| Tibialis (L) | Ankle-Abd hal | Null | Null | ||
| Tibialis (R) | Ankle-Abd hal | Null | Null | ||
| Ulnaris (L) | Wrist-ADM | 2.6 | 30.2 | 156 | 100 |
| Ulnaris (R) | Wrist-ADM | 3.3 | 28.4 | 224 | 100 |
“Null” indicates that no signal can be detected; Lat, latency; ms, millisecond; Amp, amplitude; mV, millivolt; CV, conduction velocity; Dist, distance; L, left; R, right; APB, abductor pollicis brevis; EDB, extensor digitorum brevis; Abd hal, abductor hallucis; Fib.head, fibular head; ADM, abductor digiti minimi; Mid.lower leg, the middle of lower leg; Dig, digitus; EPL, extensor pollicis longus.