On-nerve needle nerve conduction study in the sural nerve: A new technique for evaluation of peripheral neuropathy.

Academic Article

Abstract

  • OBJECTIVE: The objective of this study was to compare the nerve conduction study (NCS) data by the surface electrode (SE)-NCS versus the on-nerve needle (ONN)-NCS and to assess their clinical usefulness in the diagnosis of peripheral neuropathy. METHODS: Sensory compound nerve action potentials (CNAPs) were obtained by the ONN-NCS with needle electrodes placed on the exposed sural nerve during biopsy in 94 patients with peripheral neuropathy. RESULTS: The ONN-NCS is possible in 95% of cases. The ONN-NCS was able to record sensory CNAP in 15% of cases when it was unobtainable in the SE-NCS. The ONN-NCS showed higher amplitude and longer duration of the CNAP but a slower maximum nerve conduction velocity (NCV) than the SE-NCS. The ONN-NCS showed a significantly better concordance with the nerve biopsy findings, especially in demyelinating neuropathy. CONCLUSION: The ONN-NCS is a better electrophysiological test for the histopathological correlation with nerve biopsy. SIGNIFICANCE: The ONN-NCS was able to record sensory CNAP in 15% of cases when it was unobtainable in the SE-NCS.
  • Authors

    Keywords

  • Electrophysiological test, Nerve conduction test, On-nerve needle nerve conduction, Peripheral neuropathy, Sensory nerve conduction, Adult, Aged, Aged, 80 and over, Electrodes, Electrodiagnosis, Female, Humans, Male, Middle Aged, Needles, Neural Conduction, Peripheral Nervous System Diseases, Sural Nerve
  • Digital Object Identifier (doi)

    Pubmed Id

  • 26472194
  • Author List

  • Oh SJ; Hemmi S; Hatanaka Y
  • Start Page

  • 1811
  • End Page

  • 1816
  • Volume

  • 126
  • Issue

  • 9