Abstract
[Purpose] This study compared the results of EMG and a neurometer test and examined the kinds of sensory fibers for which nerve damage may be objectively evaluated in an attempt to provide the basic materials with which to develop an evaluation method incorporating these two tests. [Subjects] The subjects were individuals who visited an EMG laboratory of a general hospital in Busan from January 2010 to December 2011 with the cardinal symptom of hand tingling and who underwent a sensory nerve conduction study and then neurometer CPT. [Method] The present study used sensory NCVs of the finger-wrist and palm-wrist segments. The A-β fiber, A-δ fiber, and C fiber thresholds were measured by sequentially applying stimulation at the frequencies of 2000 Hz, 250 Hz, and 5 Hz, respectively. [Result] The thresholds for nonmyelinated C fibers were higher in the abnormal group than in the normal group. [Conclusion] Testing the neurometer current perception thresholds for nonmyelinated C fibers first is useful in confirming whether a patient with a complaint of hand tingling has nerve fiber abnormalities.
