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Table 2 Nerve conduction studies

From: Guillain-Barre syndrome after coronary artery bypass graft surgery: a case report and literature review

Motor NCS
Nerve – muscle Stim-site Latency (ms) Distance
(cm)
Amplitude (mv) NCV (m/s) F-LTN (ms) Duration (ms)
R L R L R L R L R L
Median (APB) WRIST 4.7 5.2 7 3.3 3.9 -- -- 36.8 27.9 8.6 7.9
Median (APB) ELBOW 10.4 10.4 22 2.1 2.5 39 42 -- -- 10 7.9
Ulnar (ADQ) WRIST 4.2 5.2 7 3.6 4.6 -- -- 31.7 31.6 9.3 8.8
Ulnar (ADQ) D.ELBOW 9.3 10 19 2.1 2.4 37 40 -- -- 10.1 10
Ulnar (ADQ) P.ELBOW 11.8 12.4 10 1.8 2 40 42 -- -- 9.7 9.5
Posterior Tibial (AH) ANKLE 6.8 7.6 8 2.2 2.2 -- -- NR 59.7 9.2 5.1
Posterior tibial (AH) KNEE 18.6 18.4 31 0.8 0.4 26 29 -- -- 12.5 6.7
Peroneal (EDB) ANKLE 8.2 NR 7 2.2 -- -- -- -- -- 10.7 NR
Peroneal (EDB) D.KNEE 19.2 -- 31 0.5 -- 28 -- -- -- 11.5 --
Peroneal (EDB) P.KNEE 22.5 -- 9 0.4 -- 28 -- -- -- 11.9 --
Facial nerve MASTOID 6.3 6.2 7 2.6 3.2       
H. Reflex POP.FOSSA NR NR          
Sensory NCS
Nerve Recording site Stimulation site Latency (ms) Distance (cm) Amplitude (uV) NCV (m/s)
R L R L R L
Median F2 WRIST 4.1 3.9 14 8.90 8.00 34 36
Ulnar F5 WRIST 3.3 3.9 14 10.50 7.50 42 36
Radial SNUFF.BOX FOREARM 2.8 2.3 10 15.40 15.00 36 43
Sural ANKLE CALF 3.9 3.9 14 12.20 10.80 36 36
  1. Abbreviations: ADQ abductor digiti minimi, AH abductor hallucis, APB abductor pollicis brevis, EDB extensor digitorum brevis, NCS nerve conduction studies, NR non-recordable