Table 1

Nerve conduction studies

Case 1Case 2Case 3V-1IV-II
SAP amplitude (uV):
 Median10NA1540NA
 Ulnar6NA122016
 Sural2NA5NANA
MCV (m/s):
 Ulnar4146515460
  • NA, not available; SAP, sensory action potentials, median and ulnar SAPs were recorded from second and fifth fingers to wrist; MCV, motor conduction velocity, recorded over abductor digiti minimi (Case 1, V-1 and IV-II) and flexor carpi ulnaris (Cases 2 and 3).