TABLE 1.
Scores of neurological impairments in patients with N2O‐related neurological disorder
| Clinical impairment (n = 63) | Number of patients (%) |
|---|---|
| Gait disturbance (n = 61) | |
| Normal | 2 (3.27) |
| positive Romberg's sign | 4 (6.35) |
| impairment but able to walk unsupported | 27 (42.86) |
| substantial support required for ambulation | 13 (20.63) |
| wheelchair or bed bound | 17 (26.98) |
| Sensory disturbance (n = 63) | |
| Normal | 0 |
| In toes and fingers | 6 (9.52) |
| In ankle and wrists | 12 (19.05) |
| In upper arms and legs | 45 (71.43) |
| Mental impairment (n = 19) | |
| Normal | 44 (69.84) |
| Impairment but requires no social support | 14 (22.22) |
| Partially dependent for activities of daily living | 4 (6.35) |
| Completely dependent for all activities of daily living | 1 (1.59) |
| Neuropathy (n = 30) | |
| No loss or reduction of reflex | 33 (52.38) |
| Areflexic or hyporeflexic ankle jerk | 0 |
| Areflexic or hyporeflexic patellar jerk | 17 (26.98) |
| Areflexic or hyporeflexic biceps jerk | 13 (20.63) |
| Pyramidal tract signs (n = 36) | |
| No involvement of the pyramidal tract | 27 (42.86) |
| positive Babinski sign | 9 (14.29) |
| Spastic paraparesis | 14 (22.22) |
| Spastic tetraparesis | 13 (20.63) |
| Clinical scores, mean ± SD (Min–Max) | 8.08 ± 2.25 (4–13) |