Document Detail

Median nerve ultrasound as a screening tool in carpal tunnel syndrome: Correlation of cross-sectional area measures with electrodiagnostic abnormality.
MedLine Citation:
PMID:  23041984     Owner:  NLM     Status:  Publisher    
Introduction: Sonographically measured median nerve cross-sectional area (CSA) at the wrist is increased in patients with carpal tunnel syndrome (CTS). Ultrasound of the median nerve may be useful in screening for electrodiagnostic (EDx) abnormalities. Methods: EDx studies were performed on all participants. Sonographic evaluation of median nerve CSA at the wrist and in the forearm was performed by a physician blinded to the EDx results. Multivariate and receiver operating characteristic (ROC) analysis were used to assess the data. Results: Fifty control wrists and 192 symptomatic wrists were analyzed. Sensitivity of ultrasound in excluding EDx abnormality was 99% for CSA of 9 mm(2) and 97% for a wrist-forearm ratio (WFR) of 1.4. There was no clinically significant correlation between ultrasound parameters and EDx severity. Conclusions: Median nerve ultrasound is a highly sensitive screening tool for EDx abnormality, but it cannot determine severity. This may lead to changes in the current standards for evaluating CTS. Muscle Nerve, 2012.
Justin T Mhoon; Vern C Juel; Lisa D Hobson-Webb
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-30
Journal Detail:
Title:  Muscle & nerve     Volume:  -     ISSN:  1097-4598     ISO Abbreviation:  Muscle Nerve     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-10-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7803146     Medline TA:  Muscle Nerve     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Department of Medicine, Division of Neurology, Duke University Medical Center, 3116 N Duke Street, Durham, North Carolina 27704, USA.
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