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Inicio Rehabilitación Estudio electromiográfico en pacientes con síndrome del canal carpiano crónic...
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Vol. 35. Issue 4.
Pages 214-218 (January 2001)
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Vol. 35. Issue 4.
Pages 214-218 (January 2001)
Estudio electromiográfico en pacientes con síndrome del canal carpiano crónico idiopático intervenidos quirúrgicamente
Electromyographic study in patients with surgically treated chronic idiopathic carpal tunnel syndrome
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J. Rioja Toro*, M. Romo Monje, A. González Rebollo, E. Cantalapiedra puentes
Servicio de Rehabilitación. Hospital Universitario Río Hortega. Valladolid.
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Resumen
Objetivo

En este estudio se pretende valorar si existe una correlación entre la clínica y los parámetros electromiográficos, en pacientes que han sido intervenidos quirúrgicamente por un síndrome del canal carpiano crónico idiopático.

Material y método

Se han estudiado 27 pacientes tratados quirúrgicamente, mediante la técnica convencional de liberación abierta del nervio mediano. Se comenzó valorando la clínica de las manos intervenidas, viendo que el 22,2% de las mismas aún tenían parestesias en el territorio del mediano. A continuación se realizó la exploración electromiográfica del nervio implicado, analizando tanto las fibras motoras como las sensitivas. Como parámetro EMG más sensible para detectar la persistencia de lesión nerviosa, se ha analizado la diferencia de los tiempos de conducción sensitivos entre el 4.º dedo con detección en mediano y el 4.º dedo con detección en cubital.

La misma valoración EMG se hizo en un grupo control formado por 32 manos todas ellas asintomáticas.

Resultados

El 75% de los pacientes seguían teniendo, después de la intervención quirúrgica, una diferencia de tiempos de conducción entre el 4.º dedo mediano y el 4.º dedo cubital alterada, a pesar de que estaban asintomáticos.

Palabras clave:
Nervio mediano
Síndrome del canal carpiano
Electromiografía
Neuropatía periférica
Summary
Objective

This study aims to assess whether there is a correlation between the clinical findings and the electromyographic parameters in patients who have been operated on due to a chronic idiopathic carpal tunnel syndrome.

Material and method

27 patients treated surgically by the conventional technique of open release of the median nerve have been studied. This was begun by assessing the clinical findings of the hands operated and it was observed that 22.2% of them still suffered paresthesia in the median nerve territory. An electromyographic examination of the nerve involved was then performed, analyzing both the motor as well as the sensitive fibers. As the most sensitive EMG parameter to detect the persistence of nervous lesion, the differences in sensitive conduction times between the 4th finger with detection in the median and the 4th finger with detection in cubital was analyzed. The same EMG assessment was done in the control group formed by 32 hands, all of which were asymptomatic.

Results

75% of the patients continue to have an altered difference in conduction times between the 4th median finger and the 4th cubital finger even though they were asymptomatic.

Key words:
Median nerve
Carpal tunnel syndrome
Electromyography
Peripheral neuropathy

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