Four limb motor and sensory NCVs and EMG show widespread abnormalities
consistent with neuropathy with the following features:
a) EMG--The left anterior leg compartment had fibrillations,
positive sharp waves and insertional potentials. Only the proximal right
arm muscles had high amplitude or giant potentials, other muscles being low or
normal amplitude. Increase MAP duration was common. The chronic
element exceeds the active denervation element. Muscles ranges from active
denervation to normal.
b) Both motor and sensory NCVs showed widespread but not
universal abnormalities with marked variation from nerve to nerve.
c) All F-waves from abnormal.
d) The right median nerve had a reproducible conduction block
at the elbow.
e) Sural nerves had normal conduction velocity but small
amplitude.
| Name | INS | Fibs | +wvs | AMP | Dur | Polyph | Recruit | Interf pt | other |
| R FDI | NL | none | none | NL | NL | NL | 75% | most normal muscle | |
| R APB | NL | none | none | NL | 1+ | NL | NL | low amp | |
| R Biceps | NL | none | none | NL | >12 | 2+ | Decr | 25% | some giants |
| L Biceps | NL | none | none | NL | NL | NL | NL | NL | normal |
| R Brachiorad | NL | none | none | ++ | NL | NL | NL | 50% | fascilations |
| R Deltoid | NL | none | none | giant | >12 | 2+ | NL | 25% | few giant |
| L Deltoid | NL | none | none | NL | NL | NL | NL | NL | Normal |
| R ECR | incr | none | none | NL | >12 | NL | NL | 75% | irritable |
| L lat peron | 2+ | none | 2+ | >12 | 1+ | decrs | 25% | some active denerv | |
| R lat peron | NL | none | none | NL | >12 | 2+ | NL | 75% | |
| R Rect Fem | NL | none | none | NL | >12 | NL | NL | NL | |
| R Triceps | NL | none | none | NL | >12 | 2+ | decr | 50% |