The Effect of Provocative Tests on Electrodiognosis of Clinical Carpal Tunnel Syndrome

ABSTRACT: Introduction & Objective: Nerve conduction study is the most sensitive test for diagnosis of carpal tunnel syndrome (CTS). This test is normal in some patients with mild CTS. Median nerve conduction study evaluation after a provocative test (e.g. wrist flexion) may be helpful for diag...

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Main Authors: MR Emad, SH Najafi
Format: Article
Language:fas
Published: Yasuj University Of Medical Sciences 2006-04-01
Series:Armaghane Danesh Bimonthly Journal
Subjects:
Online Access:http://armaghanj.yums.ac.ir/browse.php?a_code=A-10-39-119&slc_lang=en&sid=1
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author MR Emad
SH Najafi
author_facet MR Emad
SH Najafi
author_sort MR Emad
collection DOAJ
description ABSTRACT: Introduction & Objective: Nerve conduction study is the most sensitive test for diagnosis of carpal tunnel syndrome (CTS). This test is normal in some patients with mild CTS. Median nerve conduction study evaluation after a provocative test (e.g. wrist flexion) may be helpful for diagnosis of mild CTS. This study aimed to determine the effect of wrist flexion on median nerve conduction in patients suspected to CTS and in healthy subjects. Materials & Methods: In this case-controlled study, 20 patients (20 hands) with clinical signs of CTS and normal routine electrodiagnosis test results and 20 healthy subjects were investigated. Measured parameters included: median nerve distal sensory latency (DSL), nerve conduction velocity (NCV), compound nerve action potential (CNAP), distal motor latency (DML) and compound muscle action potential amplitude (CMAP AMP). The above noted parameters were measured before and after 5 minutes of full wrist flexion. Data were collected by filling out a questionnaire and were analyzed using Paired T-test. Results: Distal Sensory Latency increment and NCV decrement after 5 minutes wrist flexion in the patients group were statistically significant (p<0.05). The same parameters did not show a significant incremental or decremental change in the control group. Conclusion: Median nerve DSL and NCV measurement after 5 minutes wrist flexion may be helpful in determining more sensitive parameters in the electrodiagnosis of CTS.
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spelling doaj.art-69c25c6198654d6892afe44572204b8f2022-12-22T02:02:49ZfasYasuj University Of Medical SciencesArmaghane Danesh Bimonthly Journal1728-65061728-65142006-04-011116573The Effect of Provocative Tests on Electrodiognosis of Clinical Carpal Tunnel SyndromeMR Emad0SH Najafi1 ABSTRACT: Introduction & Objective: Nerve conduction study is the most sensitive test for diagnosis of carpal tunnel syndrome (CTS). This test is normal in some patients with mild CTS. Median nerve conduction study evaluation after a provocative test (e.g. wrist flexion) may be helpful for diagnosis of mild CTS. This study aimed to determine the effect of wrist flexion on median nerve conduction in patients suspected to CTS and in healthy subjects. Materials & Methods: In this case-controlled study, 20 patients (20 hands) with clinical signs of CTS and normal routine electrodiagnosis test results and 20 healthy subjects were investigated. Measured parameters included: median nerve distal sensory latency (DSL), nerve conduction velocity (NCV), compound nerve action potential (CNAP), distal motor latency (DML) and compound muscle action potential amplitude (CMAP AMP). The above noted parameters were measured before and after 5 minutes of full wrist flexion. Data were collected by filling out a questionnaire and were analyzed using Paired T-test. Results: Distal Sensory Latency increment and NCV decrement after 5 minutes wrist flexion in the patients group were statistically significant (p<0.05). The same parameters did not show a significant incremental or decremental change in the control group. Conclusion: Median nerve DSL and NCV measurement after 5 minutes wrist flexion may be helpful in determining more sensitive parameters in the electrodiagnosis of CTS.http://armaghanj.yums.ac.ir/browse.php?a_code=A-10-39-119&slc_lang=en&sid=1KEYWORDS: Median nerve Carpal Tunnel Syndrome (CTS) Electrodiagnostic tests Provocative test
spellingShingle MR Emad
SH Najafi
The Effect of Provocative Tests on Electrodiognosis of Clinical Carpal Tunnel Syndrome
Armaghane Danesh Bimonthly Journal
KEYWORDS: Median nerve
Carpal Tunnel Syndrome (CTS)
Electrodiagnostic tests
Provocative test
title The Effect of Provocative Tests on Electrodiognosis of Clinical Carpal Tunnel Syndrome
title_full The Effect of Provocative Tests on Electrodiognosis of Clinical Carpal Tunnel Syndrome
title_fullStr The Effect of Provocative Tests on Electrodiognosis of Clinical Carpal Tunnel Syndrome
title_full_unstemmed The Effect of Provocative Tests on Electrodiognosis of Clinical Carpal Tunnel Syndrome
title_short The Effect of Provocative Tests on Electrodiognosis of Clinical Carpal Tunnel Syndrome
title_sort effect of provocative tests on electrodiognosis of clinical carpal tunnel syndrome
topic KEYWORDS: Median nerve
Carpal Tunnel Syndrome (CTS)
Electrodiagnostic tests
Provocative test
url http://armaghanj.yums.ac.ir/browse.php?a_code=A-10-39-119&slc_lang=en&sid=1
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