The segmental palmar test in diagnosing carpal tunnel syndrome reassessed.
Clin Neurophysiol
; 123(11): 2291-5, 2012 Nov.
Article
em En
| MEDLINE
| ID: mdl-22608474
ABSTRACT
OBJECTIVE:
To test our hypothesis that comparing the sensory nerve conduction velocity of the median nerve across the wrist with that of the forearm is more sensitive than comparing it with that of the palm in the electrodiagnostic confirmation of carpal tunnel syndrome (CTS).METHODS:
One hundred and fifty seven consecutive patients with clinically defined CTS were prospectively included and electrophysiologically examined. Antidromic nerve conduction velocities were measured in 3 segments of the median nerve forearm, wrist, and palm. Differences and ratios in nerve conduction velocities were computed between the forearm and wrist and between the palm and wrist segments.RESULTS:
Comparing the median nerve conduction velocities of the forearm with the wrist segment provides a greater sensitivity (79.6% and 82.8% for the second and third digit, respectively) than comparing the palm with the wrist segment (65.6% and 65.0%). Applying the ratio leads to slightly higher sensitivities for both comparisons.CONCLUSIONS:
The modified segmental palmar test is a sensitive, robust and easily applicable method in diagnosing CTS.SIGNIFICANCE:
We recommend to use the median nerve sensory conduction velocity in the forearm as a reference in the segmental palmar test instead of that in the palm.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Síndrome do Túnel Carpal
/
Eletrodiagnóstico
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Mãos
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Nervo Mediano
/
Condução Nervosa
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Evaluation_studies
/
Incidence_studies
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Observational_studies
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Risk_factors_studies
Limite:
Adult
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Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article