Table 1 Nerve conduction study
From: A case of variant of GBS with positive serum ganglioside GD3 IgG antibody
Motor nerves | Teminal latency (ms) | Amplitude (µV) | Nerve conduction velocity (m/s) | F waves |
|---|---|---|---|---|
Median (left/right) | 2.7/2.1, N (≤ 4.4) | 7.5/6.1, N (≥ 4.0) | 73.3/61.7, N (≥ 49.0) | Normal |
Ulnar (left/right) | 2.1/2.4, N (≤ 3.3) | 7.4/7.2, N (≥ 6.0) | 67.5/70.2, N (≥ 49.0) | Normal |
Tibial (left) | 3.9, N (≤ 5.8) | 16.5, N (≥ 4.0) | 47.5, N (≥ 41.0) | Normal |
Peroneal (left) | 3.4, N (≤ 6.5) | 5.3, N (≥ 2.0) | 51.5, N (≥ 44.0) | Normal |
Facial-orbicularis oculi (left/right) | 0.9/3.6, N (≤ 3.1) | 1.0/1.4, N (≥ 1.0) | ||
Facial-orbicularis oris (left/right) | 1.1/1.4, N (≤ 4.2) | 0.9/1.2, N (≥ 1.0) | ||
Facial-frontalis (left/right) | 3.1/3.7, N (≤ 3.5) | 0.6/0.4, N (≥ 1.0) | ||
Sensory nerves | Teminal latency (ms) | Amplitude (µV) | Nerve conduction velocity (m/s) | |
Median (left/right) | 1.5/1.2, N (≤ 3.5) | 119.5/85.3, N (≥ 20.0) | 66.6/81.9, N (≥ 50.0) | |
Ulnar (left/right) | 1.6/1.3, N (≤ 3.1) | 71.3/130.9, N (≥ 17.0) | 64.1/84.6, N (≥ 50.0) | |
Sural (left) | 3.0, N (≤ 4.4) | 9.6, N (≥ 6.0) | 46.6, N (≥ 40.0) | |
Superficial peroneal (left) | 3.0, N (≤ 4.4) | 16, N (≥ 6.0) | 61.6, N (≥ 40.0) | |
Blink reflex latency (ms) | R1 latency Ipsiateral | R2 latency Ipsiateral | R2 latency Contralateral | |
Left | 7.9, N (≤ 13) | 33.8, N (≤ 41) | Fail to get | |
Right | Fail to get | Fail to get | 26.6, N (≤ 44) | |