From: Charcot-Marie-Tooth neuropathy type 2A: novel mutations in the mitofusin 2 gene (MFN2)
Normal | 1 | 2 | 3 | 4 | 5 | 6 | |
---|---|---|---|---|---|---|---|
Motor | |||||||
Median nerve | |||||||
DML (ms) | ≤ 3,9 | 2,8 | 3 | 3,8 | 5 | ||
NCV (m/s) | ≥ 50 | 53 | 50 | n.d. | 46,2 | 56 | n.d. |
Amplitude (mV) | ≥ 6 | 11,4 | 14,2 | n.d. | 11 | ||
Peroneal nerve | |||||||
DML (ms) | ≤ 4,8 | 7,6 | 4 | 5,3 | |||
NCV (m/s) | ≥ 42 | 37 | 45 | not recordable | 47,8 | not recordable | not recordable |
Amplitude (mV) | ≥ 4 | 0,8 | 8,4 | 2 | |||
Tibial nerve | |||||||
DML (ms) | ≤ 5,1 | 6,2 | 4,2 | 7,1 | |||
NCV (m/s) | ≥ 41 | 31 | 36 | 38 | n.d. | not recordable | not recordable |
Amplitude (mV) | ≥ 5 | 0,6 | 0,4 | 0,4 | |||
Sensory | |||||||
Median nerve | |||||||
NCV (m/s) | ≥ 47 | 60 | 54 | n.d. | 57,7 | 45 | n.d. |
Amplitude (mV) | ≥ 7 | 13,4 | 11 | n.d. | 20 | ||
Sural nerve | |||||||
NCV (m/s) | ≥ 41 | 34 | not recordable | 30 | 56,5 | 32 | not recordable |
Amplitude (mV) | ≥ 10 | 7,2 | 1 | n.d. | 6 |