Table 1.
Conduction studies† | |||
---|---|---|---|
Nerve | |||
Motor conduction | Conduction velocity (m/s) | Amplitude (mV) | Latency (ms) |
Median R | 36.5/36 | 3.5/4.5 | 5.8/5.0 |
Ulnar R | 38/42 | 5.0/3.5 | 3.9/3.4 |
Peroneal R | 23/ND | 0.2/ND | 8.8/ND |
Tibial R | 30/27 | 0.5/0.28 | 9.2/9.8 |
| |||
Sensory conduction | Conduction velocity (m/s) | Amplitude (μV) | Latency (ms) |
| |||
Median R | 38/42 | 1.5/1.9 | 4.7/4.3 |
Ulnar R | 39/ND | 2/ND | 4.2/ND |
Sural R | 36/32 | 2.5/2.2 | 2.5/3.9 |
Peroneal R | Could not be elicited |
†At diagnosis of CMT/during present evaluation.
ND: not done.