Table 2.
Electrophysiological findings
| Patient (age at exam, years) | Motor nerve conduction | Sensory nerve conduction | Myography | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median nerve | Ulnar nerve | Common fibular nerve | Tibial nerve | Radial nerve | Sural nerve | Quadriceps | Tibialis anterior | Deltoid | 1st interosseous | |||||||||
| Amp (mV) (>4) | CV (m/s) (>45) | Amp (mV) (>4) | CV (m/s) (>45) | Amp (mV) (>2) | CV (m/s) (>40) | Amp (mV) (>4) | CV (m/s) (>40) | Amp (µV), (>18) | Amp (µV) (>10) | Rest | Contraction | Rest | Contraction | Rest | Contraction | Rest | Contraction | |
| II-2 (36) | 3.7 | 53.3 | 3.3 | 60.8 | NO | NO | NO | NO | 55 | 23 | Fib | Neurogenic | Fib | Neurogenic | N | N | Fib | Neurogenic |
| II-3 (22) | 1.6 | 50.0 | 2.3 | 53.2 | NO | NO | 1.2 | 30.5 | 72 | 15 | Fib | Neurogenic | Fib | Neurogenic | N | N | N | N |
In bold, abnormal result according to normal laboratory values (presented in parentheses). Amp = amplitude; CV = conduction velocity; Fib = fibrillations; N = normal; NO = not obtained.