Table 2 Summary of neurophysiological results in heterozygous patients
Case NoAge (years)ENeG IndexENeG Index correctedENeG diagnosisHeat handHeat footCold handCold footHeat painCold painSSR
113−0.2−0.232.133.631.631NormalNormalND
216−0.22−0.2232.132.831.630.5NormalNormalND
316−0.38−0.3832.83423.628.5NormalNormalNormal
419−0.33−0.3332.532.631.930.8NormalNormalND
5200.080.0832.332.831.831.1NormalNormalND
624−0.33−0.3332.532.531.830.8NormalNormalND
729−0.75−0.4932.935.831.129NormalFNormal
837−0.65−0.38CTS32.532.831.529.6FFNormal
940−0.33−0.3332.532.631.930.8NormalNormalND
1045−0.95−0.46CTS32.534.331.528.5NormalFNormal
1147−0.85−0.5CTS32.541.831.130.9NormalNormalND
1250−2.08−0.7CTS32.332.831.930.6NormalNormalND
1351−0.84−0.45CTS32.332.630.830NormalNormalND
1554−0.48−0.4832.632.531.527NormalNormalND
1655−0.97−0.34CTS32.433.531.529.2NormalFND
1760−0.56−0.2433.534.231.929.6NormalNormalNormal
1863−1.28−0.84CTS32.536.531.530.4NormalNormalND
1963−1.29−0.83CTS32.232.531.931.2NormalNormalND
2066−2.85−2.35NP+ CTS32.834.531.624.6NormalFND
2169−0.69−0.6932.235.831.831.5NormalNormalNormal
2272−1.61−1.61NP32.935.831.129NormalNormalND
2374−2.76−1.67NP+ CTS32.539.931.110.5FFNormal
2690−6.92−6.92NP+ CTS34.133.83127.5NormalNormalND
All47−1.2−0.932.634.331.228.8
Young33−0.37
Old68−1.72
  • For explanation of the Electroneurography Index (ENeG Index), see methods and Solders and colleagues.12 Corrected ENeG Index is ENeG Index with single outlying values excluded and/or values of median nerve values excluded in patients with signs of CTS. Pathological threshold for heat and cold pain perception is indicated by F (in the foot). Abnormal values of the ENeG Index and temperature thresholds are given in bold type.

  • CTS, carpal tunnel syndrome; nd, not done; NP, polyneuropathy; SSR, sympathetic skin response.