Median and ulnar nerve conduction studies at the wrist: criterion validity of the NC-stat automated device

Details

• Personal Author:
  Al-Lozi MT ; Armstrong TN ; Dale, Ann M. ; Evanoff BA ; Franzblau, Alfred
• Description:
  Objective: To compare results obtained with the NC-stat - an automated nerve testing device - to traditional nerve conduction studies relevant to carpal tunnel syndrome screening. Methods: Thirty-three subjects recruited from patients referred for electrodiagnostic testing were studied. Measurements including the distal motor latency (DML), distal sensory latency (DSL), and median-ulnar latency difference (MUD) were obtained by the NC-stat and by standard nerve conduction studies. Results: With modifications to the NC-stat's suggested reference ranges, sensitivity with respect to the traditional results ranged from 93.8% (sensory MUD) to 100% (median DML and DSL) and specificity ranged from 84.6% (motor MUD) to 94.1% (sensory MUD). Sensitivity was as high or higher and specificity was lower when using the manufacturer's suggested cutoffs. Conclusion: The NC-stat appears to be a convenient and sensitive method for detecting median nerve pathology at the wrist. [Description provided by NIOSH]
• Subjects:
  Men Musculoskeletal Diseases Musculoskeletal System Nervous System Occupational Health Safety Women
• Keywords:
  Carpal-tunnel-syndrome Hand-injuries Humans Nerve-damage Nerve-function Nerves Neuropathology Sensitivity Testing Testing-equipment
• ISSN:
  1076-2752
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Michigan ; Missouri ; OSHA Region 5 ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  50
• Issue:
  7
• NIOSHTIC Number:
  nn:20043013
• Citation:
  J Occup Environ Med 2008 Jul; 50(7):758-764
• Contact Point Address:
  Bradley A. Evanoff, Washington University in St. Louis School of Medicine, Division of General Medical Sciences, Campus Box 8005, 660 S Euclid Avenue, St. Louis, MO 63110
• Email:
  bevanoff@im.wustl.edu
• Federal Fiscal Year:
  2008
• NORA Priority Area:
  Construction ; Manufacturing
• Performing Organization:
  Washington University - St. Louis, Missouri
• Peer Reviewed:
  True
• Start Date:
  20040601
• Source Full Name:
  Journal of Occupational and Environmental Medicine
• End Date:
  20151231
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c17e4dd3b2490dbc6a81f6dc95085caba7969e926a0171dfcb62ebb7113a6855314c4419a688f14e248cde630cf2b117505dba17c3feb36d579f9d3b7901b0fe
• Download URL:
  https://stacks.cdc.gov/view/cdc/195047/cdc_195047_DS1.pdf
• File Type:
  [PDF - 1.42 MB ]