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      Estimulação medular espinhal para tratamento da polineuropatia dolorosa refratária induzida por quimioterapia Translated title: Spinal cord stimulation in the treatment of refractory painful polineuropathy induced by chemotherapy Translated title: Estimulación medular espinal para tratamiento de la polineuropatía dolorosa refractaria inducida por quimioterapia

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          Abstract

          JUSTIFICATIVAS E OBJETIVOS: Polineuropatia dolorosa pós-quimioterapia tem sido muitas vezes uma condição refratária ao tratamento clínico conservador. O objetivo deste relato de caso foi mostrar o uso da estimulação medular como técnica alternativa aos métodos convencionais para tratar paciente com quadro doloroso de difícil controle. RELATO DO CASO: Paciente de 72 anos, com polineuropatia dolorosa pós-quimioterapia há mais ou menos dez anos, apresentava dor de forte intensidade (escala analógica visual = 10) em membros inferiores, contínua e diária, apesar do uso de várias medicações específicas para dor neuropática. Foi submetido a implante de eletrodo peridural apresentando melhora significativa das dores (escala analógica visual = 3) e diminuição do uso de medicação. CONCLUSÃO: A estimulação da medula espinhal constitui uma opção terapêutica em pacientes com neuropatia periférica refratária ao tratamento médico convencional quando bem indicada e realizada dentro de critérios estabelecidos.

          Translated abstract

          BACKGROUND AND OBJECTIVES: Painful polyneuropathy after chemotherapy is often refractory to conservative clinical treatment. The objective of this report was to demonstrate that spinal cord stimulation is an alternative to conventional methods used in the treatment of patients with pain that is difficult to control. CASE REPORT: A 72 year old patient with painful polyneuropathy after chemotherapy approximately 10 years ago, presented severe, continuous, daily pain (visual analog scale = 10) in the lower limbs despite the use of several drugs specific for neuropathic pain. An epidural electrode was implanted, with significant improvement in pain (visual analog scale = 3) and reduction in the consumption of medication. CONCLUSION: Spinal cord stimulation constitutes a therapeutic option in patients with peripheral neuropathy refractory to conventional clinical management when properly indicated and within established criteria.

          Translated abstract

          JUSTIFICATIVAS Y OBJETIVOS: La polineuropatía dolorosa posquimioterapia ha sido en muchas ocasiones una condición refractaria al tratamiento clínico conservador. El objetivo de este relato de caso fue mostrar el uso de la estimulación medular como técnica alternativa a los métodos convencionales para tratar paciente con cuadro doloroso de difícil control. RELATO DEL CASO: Paciente de 72 años, con polineuropatía dolorosa pos-quimioterapia hace más o menos 10 años, presentaba dolor de fuerte intensidad (escala analógica visual = 10) en miembros inferiores, continua y diaria, a pesar del uso de varias medicaciones específicas para dolor neuropático. Se sometió a implante de electrodo peridural presentando una mejoría significativa de los dolores (escala analógica visual = 3) y una disminución del uso de medicación. CONCLUSIÓN: La estimulación de la médula espinal constituye una opción terapéutica en pacientes con neuropatía periférica refractaria al tratamiento médico convencional cuando se indica y se realiza dentro de criterios establecidos.

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          Most cited references24

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          Efficient analysis of experimental observations.

          W. Dixon (1980)
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            Chemotherapy-induced peripheral neuropathy

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              Epidural spinal cord stimulation for treatment of chronic pain--some predictors of success. A 15-year experience.

              We have used epidural spinal cord stimulation (SCS) for pain control for the past 15 years. An analysis of our series of 235 patients has clarified the value of specific prognostic parameters in the prediction of successful SCS. Patients were followed up for periods ranging from 6 months to 15 years with a mean follow-up of 66 months. The mean age of the 150 men and 85 women in the study was 51.4 years. Indications for SCS included failed back syndrome (114 patients), peripheral vascular disease (39 patients), peripheral neuropathy (30 patients), multiple sclerosis (13 patients), reflex sympathetic dystrophy (13 patients), and other etiologies of chronic intractable pain (26 patients). One hundred and eighty-nine patients received permanent devices; 111 (59%) of these patients continue to receive satisfactory pain relief. Pain attributable to failed back syndrome, reflex sympathetic dystrophy, peripheral vascular disease of lower limbs, multiple sclerosis, and peripheral neuropathy responded favorably to spinal cord stimulation. In contrast, paraplegic pain, cauda equina syndrome, stump pain, phantom limb pain, and primary bone and joint disease pain did not respond as well. Cases of cauda equina injury had promising initial pain relief, but gradually declined after a few years. After long-term follow-up, 47 of the 111 successfully implanted patients were gainfully employed, compared with 22 patients before implantation. The successful patients reported improvements in daily living as well as a decrease in analgesic usage. Multipolar stimulation systems were significantly more reliable (p < 0.001) than unipolar systems. Complications included hardware malfunction, electrode displacement, infection, and tolerance. Aside from etiologies of pain syndromes as a prognostic factor, we have identified other parameters of success. In patients who have undergone previous surgical procedures, the shorter the duration of time to implantation, the greater the rate of success (p < 0.001). The diagnosis of failed back syndrome must be considered a confounding factor in our analysis. Those patients whose pain did not follow a surgical procedure had better responses to SCS than patients who had multiple surgical procedures prior to their first implant. The advent of multipolar systems has significantly improved clinical reliability over unipolar systems. Age, sex, and laterality of pain did not prove to be of significance.
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                Author and article information

                Journal
                rba
                Revista Brasileira de Anestesiologia
                Rev. Bras. Anestesiol.
                Sociedade Brasileira de Anestesiologia (Campinas, SP, Brazil )
                0034-7094
                1806-907X
                October 2007
                : 57
                : 5
                : 533-538
                Affiliations
                [03] orgnameFederação Latino-Americana das Associações para o Estudo da Dor
                [02] orgnameSociedade Brasileira para o Estudo da Dor
                [04] orgnameUniversidade Federal de Pernambuco
                [01] orgnameCLIMDOR
                Article
                S0034-70942007000500008 S0034-7094(07)05700508
                650d580a-5e35-49be-9ca3-2e413fe74291

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 01 August 2006
                : 11 June 2007
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 6
                Product

                SciELO Brazil

                Categories
                Informações Clínicas

                DOR, Crônica,ANALGESIA,PAIN, Chronic
                DOR, Crônica, ANALGESIA, PAIN, Chronic

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