Table 1.
Patient characteristics
| Patient | Age at clinical eval (yrs) | Gender | Duration of symptoms at eval (mo) | Chief complaint | Dead numbness | Prickling | Pain | Weakness | Sensory loss | Neurologic exam findings | NIS (points) | Clinical diagnosis | EMG diagnosis | Nerve biopsied | CSF protein (mg/dl) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 12 | F | 12 | Weakness | N | N | N | Y | N | MO | 12.25 | Sciatic | Sciatic (P>T) | Sciatic (P) | 22 |
| 2 | 7 | M | 15 | Weakness | N | N | N | Y | Y | MP | 12 | Sciatic | Sciatic (P>T) | Sciatic (P, T) | 15 |
| 3 | 2 | F | 24 | Weakness | N | N | N | Y | Y | MP | 30 | Lumbosacral plexus | Lumbosacral plexus | Sciatic (T) | 22 |
| 4 | 12 | F | 6 | Weakness | N | Y | Y | Y | Y | MP | 7 | Sciatic | Sciatic (P) | Sciatic (P) | 37 |
| 5 | 35 | M | 180 | Weakness | Y | N | N | Y | Y | MP | 9.5 | Tibial | Tibial | Tibial | |
| 6 | 31 | M | 84 | Atrophy | N | Y | N | Y | Y | MP | 20 | Sciatic | Tibial | Sciatic (T) | |
| 7 | 15 | F | 36 | Weakness | N | N | N | Y | N | MP | 16.25 | Sciatic | Lumbosacral plexus | Sciatic (P) | |
| 8 | 56 | M | 12 | Weakness | Y | N | N | Y | Y | MP | 7 | Radial | Radial | Radial | 45 |
| 9 | 19 | F | 14 | Weakness | N | N | Y | Y | N | MO | 5 | Femoral | Femoral | Femoral | 39 |
| 10 | 40 | M | 108 | Weakness | Y | Y | Y | Y | Y | MP | 9 | Median | Median | Median | |
| 11 | 7 | F | 7 | Weakness | N | N | N | Y | N | MO | 21 | Sciatic | Lumbosacral plexus | Sciatic (P) | 18 |
| 12 | 40 | M | 48 | Pain and numbness | Y | N | Y | Y | Y | MP | 2 | Trigeminal | ND | Auriculotemporal | |
| 13 | 34 | M | 48 | Weakness | N | N | Y | Y | Y | MP | 11.5 | Sciatic | Sciatic (P>T) | Sciatic (P) | |
| 14 | 12 | F | 48 | Weakness | N | N | N | Y | N | MO | 19 | Brachial plexus | Brachial plexus | BP (middle) | |
| 15 | 35 | M | 360 | Weakness | Y | N | N | Y | Y | MS | 49 | Brachial plexus | Brachial plexus | BP (upper) | |
| 16 | 30 | F | 48 | Pain | Y | N | Y | Y | Y | MP | 6 | Radial | Radial | Radial | |
| 17 | 14 | M | 18 | Weakness | N | N | N | Y | Y | MP | 7 | Sciatic | Sciatic (T>P) | Sciatic (T) | 42 |
| 18 | 30 | M | 78 | Weakness | N | N | Y | Y | N | MP | 22 | Sciatic | Sciatic (T) | Sciatic (T) | |
| 19 | 12 | M | 144 | Weakness | N | Y | N | Y | N | MP | 12 | Brachial plexus | Brachial plexus | BP (middle) | |
| 20 | 34 | M | 96 | Weakness | Y | N | N | Y | N | MP | 12 | Radial | Radial | Radial | |
| 21 | 8 | F | 8 | Weakness | N | N | Y | Y | Y | MP | 9 | Sciatic | Common peroneal | Common peroneal | |
| 22 | 19 | F | 60 | Weakness | Y | N | N | Y | Y | MP | NA | Ulnar | ND | Ulnar | |
| 23 | 25 | F | 8 | Pain | Y | N | Y | Y | Y | MP | 7 | Ulnar | Ulnar | Ulnar | |
| 24 | 38 | F | 9 | Weakness | N | N | N | Y | N | MO | NA | Radial (PIN) | Radial (PIN) | Radial (PIN) | |
| 25 | 15 | M | 16 | Weakness | Y | N | N | Y | Y | MP | 18 | Median | Median | Median | |
| 26 | 11 | F | 72 | Weakness | Y | N | Y | Y | Y | MP | 12 | Brachial plexus | Brachial plexus | C8/T1, BP (lower) | |
| 27 | 13 | F | 24 | Weakness | Y | N | N | Y | Y | MP | 8 | Peroneal | Common peroneal | Common peroneal | |
| 28 | 35 | F | 24 | Weakness | Y | Y | Y | Y | Y | MP | NA | Ulnar | Ulnar | Ulnar | |
| 29 | 8 | M | 90 | Weakness | Y | Y | Y | Y | Y | MP | 13 | Sciatic | Sciatic (P>T) | Sciatic (P) | 31 |
| 30 | 13 | F | 24 | Weakness | Y | N | Y | Y | Y | MP | 3.25 | Ulnar | Ulnar | Ulnar | |
| 31 | 37 | M | 77 | Weakness | Y | N | N | Y | Y | MP | 9.5 | Tibial | Tibial | Tibial | 42 |
| 32 | 12 | M | 36 | Weakness | Y | N | N | Y | Y | MP | 16 | Sciatic | Lumbosacral plexus | Sciatic (P) | 44 |
| Number | 32 | 16F, 16M | 32 | 17Y, 15N | 6Y, 26N | 13Y, 19N | 32Y, 0N | 23Y, 9N | 26MP | 29 | 11 | ||||
| Median | 17 | 36 | 12 | 37 | |||||||||||
| Range | 2–56 | 6–360 | 2–49 | 15–45 |
M = male; F = female; Y = yes; N = no; yrs = years; mo = months; MO = motor only; MP = motor predominant; MS = motor and sensory; NIS = neuropathy impairment score; NA = information not available; ND = not done; P = peroneal division; T = tibial division; BP = brachial plexus; upper = upper trunk; middle = middle trunk; lower = lower trunk; PIN = posterior interosseus nerve.