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• W1973308923 abstract "Deafferentation pain secondary to spinal cord injury, brachial plexus avulsion and other peripheral nerve injuries is often refractory to conventional treatments. This study evaluates the long-term efficacy of spinal DREZ (Dorsal Root Entry Zone) lesions for the treatment of neuropathic pain syndromes caused by deafferentation. A series of 18 patients with refractory deafferentation pain treated with radiofrequency DREZ lesions is presented. The immediate and long-term efficacy was measured with the Visual Analogue Scale (VAS) before and after treatment, the patient's subjective evaluation, the percentage of patients returning to work and the reduction in pain medication. Pain on the VAS significantly decreased from 8.6 preoperatively to 2.9 (p < .001) at release. Over the long-term, with a mean follow-up of 28 months (6–108) pain remained at 4.7 on the VAS (p < 0.002). The percentage of patients with moderate to excellent pain relief was 77% at discharge and 68% at the last follow-up. Pain medication was reduced in 67% of the patients and 28% returned to work. The best results were obtained in patients with brachial plexus avulsion, with a significant long-term pain relief in all cases. Radiofrequency DREZ lesion is an effective and safe treatment for refractory neuropathic pain caused by deafferentation. El dolor por desaferentización secundario a lesiones medulares, avulsión del plexo braquial y otras lesiones de nervios periféricos, es a menudo refractario a tratamientos convencionales. Este trabajo evalúa la eficacia a largo plazo de la cirugía de lesión DREZ (Dorsal Root Entry Zone) en diversos síndromes de dolor neuropático por desaferentización. Se presenta una serie de 18 pacientes con dolor refractario por desaferentización tratados mediante lesión DREZ con radiofrecuencia. La eficacia inmediata y a largo plazo se valoró mediante la escala visual analógica (EVA) preoperatoria y postoperatoria, la valoración subjetiva del paciente, la reincorporación laboral y la reducción de la medicación analgésica. El dolor en la EVA disminuyó significativamente de 8,6 antes de la cirugía a 2,9 de media al alta (p < 0,001). A largo plazo, con un seguimiento medio de 28 meses (6–108), el dolor se mantuvo en 4,7 en la EVA (p < 0,002). El porcentaje de pacientes con un alivio moderado a excelente del dolor fue de 77% al alta y 68% a largo plazo. El 67% de los pacientes redujo la medicación analgésica y el 28% se reincorporó al trabajo. Los mejores resultados se obtuvieron en los pacientes con avulsión del plexo braquial con una mejoría significativa del dolor a largo plazo en todos los casos. La lesión DREZ por radiofrecuencia es un tratamiento eficaz y seguro para el dolor neuropático refractario por desaferentización." @default.
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• W1973308923 date "2011-01-01" @default.
• W1973308923 modified "2023-10-01" @default.
• W1973308923 title "Treatment of neuropathic deafferentation pain using DREZ lesions; long-term results" @default.
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• W1973308923 doi "https://doi.org/10.1016/s2173-5808(11)70005-0" @default.
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