From: Neurosyphilis presenting with Guillain–Barre syndrome: a case report
Sensory Nerve Conduction | |||||
Nerve/Sites | Onset Latency (ms) | Peak Latency (ms) | Amplitude (uV) | Distance (mm) | Velocity (m/s) |
Left Sural—Ankle | |||||
Calf | 2.7 | 3.5 | 14 | 140 | 51.3 |
Right Sural—Ankle | |||||
Calf | 2.7 | 3.5 | 12 | 140 | 51.7 |
Left Radial—Anatomical snuff box | |||||
Forearm | 2.1 | 2.8 | 10 | 100 | 47.5 |
Motor Nerve Conduction | |||||
Nerve/Sites | Latency (ms) | Amplitude (mV) | Duration (ms) | Velocity (m/s) | |
Left Median—APB | |||||
Wrist | 15.1 (< 4.4) | 1.4 (> 4.0) | 13.4 | ||
Elbow | 20.3 | 1.4 | 11.7 | 41.9 (> 49) | |
Left Ulnar—ADM | |||||
Wrist | 6.8 (< 3.6) | 1.0 (> 5.0) | 12 | ||
Below Elbow | 10.6 | 0.9 | 11.7 | 47.2 (> 49) | |
Above Elbow | 12.9 | 0.7 | 13.4 | 44.9 | |
Left Peroneal—EDB—No Response | |||||
Left Tibial—AH | |||||
Ankle | 14.9 (< 6.0) | 0.1 (> 3.0) | 6.5 | ||
Popliteal Fossa | 29.5 | 0.1 | 3.6 | 21.9 (> 39) | |
F-wave | |||||
Nerve—Muscle | F Latency (ms) | M Latency (ms) | F-M Latency (ms) | ||
Left Ulnar—ADM | NR | ||||
Left Median—APB | NR | NR | NR | ||
Left Tibial—AH | NR | NR | NR |