Table 3.
Patient | Age at Study |
Motor |
Sensory |
Electromyography | Sural Nerve Biopsy | Muscle Biopsy | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Right Peroneal |
Right Tibial |
Right Sural |
Right Sup Peroneal |
|||||||||
Amplitude (mV) | Velocity (m/s) | Amplitude (mV) | Velocity (m/s) | Pk-Pk (μV) | Velocity (m/s) | Pk-Pk (μV) | Velocity (m/s) | |||||
II 10 | 29 | – | – | 3.85 | 46 | 20 | 39 | – | – | chronic denervation | – | – |
II 13 | 31 | – | – | 4.3 | 51 | 12 | 41 | – | – | central neuronal atrophy | – | severe connective tissue replacement |
II 15 | 36 | normal | normal | normal | normal | normal | normal | normal | normal | – | indolent axon degenerative process with some evidence of fiber regeneration consistent with a diagnosis of HMSN type 2 | – |
III 4 | 25 | 2.0 | 56.6 | 8.9 | – | 20.3 | 42.9 | 13.3 | 45.5 | normal | – | – |
III 14 | 28 | 5.4 | 44.2 | 7.1 | 39.6 | 8.6 | 37.7 | 7.8 | 40 | vastus medialis MUPs enlarged otherwise normal | – | – |
III 17 | 20 | normal | normal | normal | normal | normal | normal | normal | normal | – | – | – |
III 18 | 22 | 2.9 | 44 | 11.5 | – | 7 | 28 | 15 | 35 | mild degree of large fiber axonal sensory motor peripheral neuropathy | – | – |
III 21 | 2 | normal | normal | normal | normal | normal | normal | normal | normal | interference pattern nonspecifically abnormal, occasional units up to 6 mV | – | – |
IV 7 | 5 | not performed | not performed | not performed | not performed | not performed | not performed | not performed | not performed | – | – | atrophic fibers consistent with chronic partial denervation |