Table 1.
Electroneurographic evaluation at baseline and at follow-up
| Nerve stimulated | Stimulation site | Amplitude (baseline) | Amplitude (follow-up) | Latency (ms) (baseline) | Latency (ms) (follow-up) | Conduction velocity (m/s) (baseline) | Conduction velocity (m/s) (follow-up) | F wave (ms) (baseline) | F wave (ms) (follow-up) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R | L | R | L | R | L | R | L | R | L | R | L | R | L | R | L | ||
| Median (s) | Wrist | Absent | Absent | 7.5 | 5 | 40 | 41 | ||||||||||
| Ulnar (s) | Wrist | Absent | Absent | 6.6 | 4 | 39 | 39 | ||||||||||
| Sural (s) | Calf | Absent | Absent | Absent | Absent | ||||||||||||
| Median (m) | Wrist | 9 | 5 | 8 | 6 | 2.8 | 2.8 | 2.7 | 2.9 | 23 | 25 | 24 | 24 | ||||
| Elbow | 7 | 4 | 8 | 5 | 60 | 51 | 62 | 58 | |||||||||
| Axilla | 7 | 4 | 8 | 5 | 65 | 55 | 63 | 62 | |||||||||
| Ulnar (m) | Wrist | 6 | 5 | 7 | 7 | 2.2 | 2.1 | 2.3 | 2.2 | 25 | 26 | 25 | 25 | ||||
| Below elbow | 5 | 5 | 7 | 6 | 50 | 49 | 51 | 52 | |||||||||
| Above elbow | 5 | 5 | 6 | 6 | 60 | 58 | 55 | 56 | |||||||||
| Axilla | 5 | 5 | 6 | 6 | 52 | 64 | 57 | 62 | |||||||||
| Tibial (m) | Ankle | 4 | 5 | 5 | 5 | 5.2 | 3.6 | 4.9 | 4.0 | 45 | 48 | 44 | 46 | ||||
| Popliteal fossa | 4 | 5 | 5 | 4 | 40 | 42 | 41 | 44 | |||||||||
| Peroneal (m) | Ankle | 4 | 3 | 3.9 | 4.2 | 4.1 | 4.2 | 46 | 49 | 45 | 44 | ||||||
| Below fibula | 4 | 3 | 48 | 40 | 44 | 45 | |||||||||||
| Above fibula | 4 | 3 | 47 | 42 | 47 | 48 | |||||||||||
Legend: R, right; L, left; amplitude motor = mV, sensory = µV; m, motor conduction study; s, sensory conduction study (antidromic). Pathological values are marked in bold.