Table 2.
Summary of demographic, clinical, and electrophysiological characteristics of patients from this and previous studies.
| Items | Cases in this cohort (n = 21 a ) | Cases in literatures (n = 8) | Total cases (n = 29) |
|---|---|---|---|
| Female, n | 7/21 | 0/8 | 7/29 |
| Age (y), M± SD | 42 ± 16 | 57 ± 24 | 46 ± 19 |
| Symptoms during clinical course | |||
| Muscle weakness | 20/21 | 8/8 | 28/29 |
| Lower extremity | 13/21 | 5/8 | 18/29 |
| Both lower and upper extremities | 7/21 | 3/8 | 10/29 |
| Sensory symptoms | 16/21 | 7/8 | 23/29 |
| Lower extremity | 9/21 | 6/8 | 15/29 |
| Upper extremity | 1/21 | 0/8 | 1/29 |
| Both lower and upper extremities | 4/21 | 1/8 | 5/29 |
| Limbs and trunk | 2/21 | 0/8 | 2/29 |
| Cranial neuropathy | 2/21 | 1/8 | 3/29 |
| Electrodiagnostic studies | |||
| Nerve fiber involvement | |||
| Motor nerve fiber | 10/13 | 0/8 | 10/21 |
| Motor and sensory nerve fiber | 2/13 | 8/8 | 10/21 |
| Distribution of nerve involvement | |||
| Lower extremity | 10/13 | 7/8 | 17/21 |
| Lower and upper extremities | 2/13 | 1/8 | 3/21 |
| Pathophysiologic process of PN | |||
| Axonal neuropathies | 9/13 | 4/8 | 13/21 |
| Demyelinating neuropathies | 0/13 | 2/8 | 2/21 |
| Axonal and demyelinating neuropathies | 1/13 | 2/8 | 3/21 |
| Abnormal F or H reflexes | 8/13 | 2/8 | 10/21 |
| Denervation activity | 3/13 | 5/8 | 8/21 |
PN, peripheral neuropathy; PNS, peripheral nervous system; SD, standard deviation; y, years.
a
Overall, 13 of 21 patients from our center had electrodiagnostic study data.