| Variable |
No (%) of patients |
| 1. F waves Abnormal, total |
|
| a. Upper limb |
Absent |
50 (76.92%) |
| Prolonged latency |
15 (23.07%) |
| Normal |
0 |
| b. Lower limb |
Absent |
50 (76.92%) |
| Prolonged latency |
15 (23.07%) |
| Normal |
0 |
| 2. SCV |
|
| a. Upper limb |
Normal |
55 (84.61%) |
| Decrease |
05 (7.69%) |
| Absent |
05 (7.69%) |
| b. Lower Limb (Sural) |
Absent |
40 (61.29%) |
| Decrease |
20 (30.76%) |
| Absent |
5 (7.69%) |
| 3. CMAP (compound muscle action potential) |
|
| A.Conduction velocity
(CV) & amplitude |
|
|
| a. Upper limb |
Decrease in both Ulnar &
median nerves |
44 (67.6%) |
| Decrease in only ulnar nerve |
8 (12.3%) |
| Normal CV |
13 (20.1%) |
| b. Lower limb |
Decrease in both tibial &
peroneal nerves
|
50 (76.92%) |
| Decrease in only tibial nerve |
5 (7.69%) |
| Conduction block |
10 (15.38%) |
| B. Distal motor latency |
|
|
| a. Upper limb |
Increase in both Ulnar &
median nerves |
42 (64%) |
| Increase in only ulnar nerve |
8 (12%) |
| b. Lower limb |
Increase in both tibial &
peroneal nerves |
50 (76.92%) |
| Increase in only tibial
nerve |
5 (7.69%) |
| Conduction block |
10 (15.38%) |
| 4. EMG |
Demyelinating type |
60 (92.30%) |
| Axonal type |
5 (7.69%) |
