Comparison of nerve conduction techniques in 95 mild carpal tunnel syndrome hands

Arquivos de Neuro-Psiquiatria

Joao Aris Kouyoumdjian¹  Maria Da Penha Ananias Morita¹ 

[1] ,Faculty of Medicine EMG Lab Clinical NeurophysiologySão José do Rio Preto São Paulo ,Brazil

关键词: carpal tunnel syndrome;    compression neuropathy;    median nerve;    electrodiagnosis;    nerve conduction studies;    síndrome do túnel do carpo;    neuropatia compressiva;    nervo mediano;    condução nervosa;   

DOI  :  10.1590/S0004-282X1999000200005

来源: SciELO

【 摘 要 】

Electrodiagnosis of carpal tunnel syndrome (CTS) were prospectively studied in 95 hands. The following techniques were studied in all hands and when at least one abnormal value was found (onset-measured), it was included on results: 1. wrist-index finger latency (WIF), abnormal> or =2.8 ms, 140 mm; 2. palm-wrist latency (PW), abnormal> or =1.8 ms, 80 mm; 3. comparison median/ulnar palm-wrist latency (CPW), abnormal> or =0.4 ms; 4. comparison median/ulnar latency, wrist-ring finger (CMU), abnormal> or =0.5 ms, 140 mm; 5. comparison median/radial latency, wrist-thumb (CMR), abnormal> or =0.4 ms, 100 mm. All 95 CTS hands selected have the WIF <= 3.5 ms (mild CTS). We found the CMR (97.8%) technique the most sensitive for mild CTS electrodiagnosis and the only comparative method with all potentials recordable when compared to CPW (88.4%), PW (84.2%), CMU (72.6%) and WIF (68.4%).

【 授权许可】

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