Table 1.

Neurophysiological findings.

Antidromic sensory NCS	Latency (ms)	Amplitude (μV)	Velocity (m/s)	Motor NCS	Latency proximal/distal (ms)	Amplitude proximal/distal (mV)	Velocity (m/s)
Sural: posterior ankle	R = NE; L = NE	R = NE; L = NE	R = NE; L = N	Tibial: medial malleolus-abductor hallucis brevis; popliteal fossa-medial malleolus	R = NE; L = NE	R = NE; L = NE	R = NE; L = NE
Radial: thumb	R = 4.2; L = NE	R = 0.13; L = NE	R = 31; L = NE
Ulnar: digit 5	R = 2.3; L = 2.6	R = 6.2; L = 1.5	R = 52.2; L = 46.2	Common peroneal: ankle-extensor digitorum brevis; below fibula-ankle	R = 11.9/4; L = NE	R = 0.1/0.1; L = NE	R = 36.7; L = NE

Electromyography showed fibrillation potentials and positive sharp waves in the tibialis anterior and gastrocnemius medialis muscles, bilaterally.

L, left; NCS, nerve conduction study; NE, not evocable; R, right.