Table 1 Motor nerve conduction study in a 67-year-old male with preliminary diagnosis of CIDP
Nerve/site | Latency (ms) | Amplitude (mV) | Distal Distance (cm) | Velocity (m/s) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
On admission | After treatment | Reference | On admission | After treatment | Reference | On admission | After treatment | Reference | ||
Median Left (Abductor pollicis brevis) | ||||||||||
Wrist | 8.3 | 8.1 | ≤4.4 | 0.75 | 0.93 | ≥4 | 7 | 20.4 | 22.1 | ≥49 |
Elbow | 18.1 | 17.8 | 0.34 | 0.51 | ||||||
Median Right (Abductor pollicis brevis) | ||||||||||
Wrist | 7.8 | 7.4 | ≤4.4 | 1.9 | 2.2 | ≥4 | 7 | 21.3 | 23.4 | ≥49 |
Elbow | 17.7 | 16.3 | 0.8 | 1.1 | ||||||
Ulnar Left (Abductor digiti minimi) | ||||||||||
Wrist | 5.3 | 5.2 | ≤3.3 | 3.7 | 3.6 | ≥6 | 7 | 18.5 | 20.6 | ≥49 |
Elbow | 16.1 | 15.5 | 1.3 | 1.3 | ||||||
Ulnar Right (Abductor digiti minimi) | ||||||||||
Wrist | 5.1 | 4.7 | ≤3.3 | 2.9 | 3.2 | ≥6 | 7 | 19.1 | 23.2 | ≥49 |
Elbow | 16.2 | 16.1 | 1.1 | 1.2 | ||||||
Radial Left (Extensor indicis proprius) | ||||||||||
Forearm | 8.2 | 7.9 | ≤2.9 | 0.56 | 0.52 | ≥2 | 5 | 19.1 | 22.5 | ≥49 |
Elbow | 11.4 | 11.2 | 0.21 | 0.20 | ||||||