Table 1: Electrophysiological
findings at onset
Motor
Conduction Studies |
|||||
Nerve |
Stimulation Point |
Record Point |
Latency (ms) |
Velocity (m/s) |
Amplitude (mV) |
Right Median |
Wrist |
APB |
2.8 |
|
10.3 |
Elbow |
|
16.6 |
16.5 |
4.4 |
|
Axilla |
|
24.9 |
17 |
2.5 |
|
Left Median |
Wrist |
APB |
3.0 |
|
8.6 |
Elbow |
|
16.8 |
18.3 |
3.5 |
|
Axilla |
|
24.2 |
21.2 |
2.2 |
|
Right Ulnar |
Wrist |
ADM |
2.5 |
|
7.1 |
Elbow |
|
21.4 |
12 |
1.6 |
|
Axilla |
|
34.8 |
6 |
1.2 |
|
Left Ulnar |
Wrist |
ADM |
2.7 |
|
7.5 |
Elbow |
|
20.5 |
11.3 |
2.2 |
|
Axilla |
|
33.1 |
6.7 |
1.8 |
|
Right Peroneal |
Ankle |
EDB |
5.1 |
|
3.9 |
Head of
fibula |
|
46.7 |
0.7 |
0.8 |
|
Left Peroneal |
Ankle |
EDB |
5.0 |
|
3.0 |
Head of
fibula |
|
44.9 |
1.0 |
0.6 |
|
Right Tibial |
Ankle |
AHL |
9.9 |
|
4.2 |
Poplitea |
|
46.4 |
1.1 |
1.4 |
|
Left Tibial |
Ankle |
AHL |
9.5 |
|
4.0 |
Poplitea |
|
45.5 |
0.8 |
1.2 |
|
Sensory Conduction
Studies |
|||||
Nerve |
Stimulation Point |
Record Point |
Latency (ms) |
Velocity (m/s) |
Amplitude (µV) |
Right Median |
Wrist |
2nd
Finger |
2.52 |
47.6 |
8 |
Left Median |
Wrist |
2nd
Finger |
2.45 |
45.2 |
9 |
Right Ulnar |
Wrist |
5th
Finger |
Unelicitable |
|
|
Left Ulnar |
Wrist |
5th
Finger |
Unelicitable |
|
|
Right Sural |
Low Cruris |
Lat. Malleol |
Unelicitable |
|
|
Left Sural |
Low Cruris |
Lat. Malleol |
Unelicitable |
|
|
ms: millisecond;
m/s: metre/second; mV: millivolt; APB: Abductor Pollicis
Brevis; ADM: Abductor Digiti
Minimi; EDB: Extensor Digitorum
Brevis; AHL: Abductor Hallucis
Longus; µV: microvolt.