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A Comparison between Current Perception Threshold and Electrophysiological Findings in Carpal Tunnel Syndrome Hideki Okamoto 1 , Kenichi Kawai 1 , Satoshi Hattori 1 , Tetsuo Ogawa 2 , Yasuhiro Kubota 1 , Nobuo Matsui 1 1Foundation of Nagoya City Rehabilitation and Sports Center 2Department of Rehabilitation, Foundation of Nagoya City Rehabilitation and Sports Center Keyword: carpal tunnel syndrome , 手根管症候群 , current perception threshold , 電流知覚閾値 , near nerve electrode method , 神経近接針電極法 pp.1069-1075
Published Date 2004/8/1
DOI https://doi.org/10.11477/mf.1408100519

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  • Abstract
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 Twenty-two hands of 20 patients were diagnosed as carpal tunnel syndrome (CTS). Cervical spine disease, other peripheral neuropathy and diabetes mellitus had been ruled out as causes of the patient's symptoms. There were five men and 15 women. The right side was affected in 15 and the left side in 7 cases. Mean patient age was 55.5 years (range:34 to 77 years). Near-nerve electrode method according to Buchthal and current perception threshold (CPT) examinations were performed routinely, and we compared the CPT and electrophysiological findings.

 There was a good correlation between distal motor latency (DML) and CPT score at 250Hz in the thumb and at 2,000Hz in the middle finger. In brief, CPT score tended to be within the normal range until DML became prolonged.

 CPT detected abnormalities in 77%of the patients. Near-nerve electrode method detected abnormalities in 100%of the patients. We conclude that CPT is helpful for the screening method for CTS. Electrophysiological examinations (near-nerve electrode method) provide good information on the degree of CTS.


Copyright © 2004, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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