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      Evaluation of the efficacy of ropivacaine injection in the anterior and middle scalene muscles guided by ultrasonography in the treatment of Thoracic Outlet Syndrome

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          Abstract

          SUMMARY A clinical, placebo-controlled, randomized, double-blind trial with two parallel groups. OBJECTIVE to evaluate the efficacy of ropivacaine injection in each belly of the anterior and middle scalene muscles, guided by ultrasonography, in the treatment of Nonspecific Thoracic Outlet Syndrome (TOS) compared to cutaneous pressure. METHODS 38 patients, 19 in the control group (skin pressure in each belly of the anterior and middle scalene muscles) and 19 in the intervention group (ropivacaine). Subjects with a diagnosis of Nonspecific Thoracic Outlet Syndrome, pain in upper limbs and/or neck, with no radiculopathy or neurological involvement of the limb affected due to compressive or encephalic root causes were included. The primary endpoint was functionality, evaluated by the Disabilities of the Arm, Shoulder, and Hand - DASH scale validated for use in Brasil. The time of the evaluations were T0 = before the intervention; T1 = immediately after; T2 = 1 week; T3 = 4 weeks; T4 = 12 weeks; for T1, the DASH scale was not applied. RESULTS Concerning the DASH scale, it is possible to affirm with statistical significance (p> 0.05) that the intervention group presented an improvement of functionality at four weeks, which was maintained by the 12th week. CONCLUSION In practical terms, we concluded that a 0.375% injection of ropivacaine at doses of 2.5 ml in each belly of the anterior and middle scalene muscles, guided by ultrasonography, in the treatment of Nonspecific Thoracic Outlet Syndrome helps to improve function.

          Translated abstract

          RESUMO Ensaio clínico, controlado por placebo, aleatorizado, duplo-cego, com dois braços paralelos. OBJETIVO Avaliar a eficácia da injeção de ropivacaína em cada ventre dos músculos escalenos anterior e médio, guiada por ultrassonografia, no tratamento da Síndrome do Desfiladeiro Torácico Neurogênico inespecífico comparado com o toque cutâneo. MÉTODOS Trinta e oito pacientes, sendo 19 no grupo controle (toque cutâneo em cada ventre dos músculos escalenos anterior e médio) e 19 no grupo intervenção (ropivacaína). Foram incluídos sujeitos com diagnóstico de Síndrome do Desfiladeiro Torácico Neurogênico inespecífico com dor em membros superiores e/ou cervicalgia sem radiculopatia ou comprometimento neurológico do membro em questão por causas radiculares compressivas ou encefálicas. O desfecho primário foi a funcionalidade avaliada pela escala Disabilitie of the Arm, Shoulder and Hand – Dash, validada no Brasil. O tempo das avaliações foram T0 = antes da intervenção; T1 = imediatamente após, T2 = 1 semana, T3 = 4 semanas e T4 = 12 semanas, sendo que para o T1 não foi aplicado o Dash. RESULTADOS Com relação ao Dash, de forma estatisticamente significante (p>0,05), é possível afirmar que o grupo intervenção apresentou melhora da funcionalidade a partir de quatro semanas, e essa melhora se manteve até a 12a semana. CONCLUSÃO Em termos práticos, conclui-se que a injeção de ropivacaína 0,375% nas doses de 2,5 ml em cada ventre dos músculos escalenos anterior e médio, guiada por ultrassonografia, no tratamento da Síndrome do Desfiladeiro Torácico Neurogênico inespecífico auxilia na melhora da função.

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          Needling therapies in the management of myofascial trigger point pain: a systematic review.

          To establish whether there is evidence for or against the efficacy of needling as a treatment approach for myofascial trigger point pain. PubMed, Ovid MEDLINE, Ovid EMBASE, the Cochrane Library, AMED, and CISCOM databases, searched from inception to July 999. Randomized, controlled trials in which some form of needling therapy was used to treat myofascial pain. Two reviewers independently extracted data concerning trial methods, quality, and outcomes. Twenty-three papers were included. No trials were of sufficient quality or design to test the efficacy of any needling technique beyond placebo in the treatment of myofascial pain. Eight of the 10 trials comparing injection of different substances and all 7 higher quality trials found that the effect was independent of the injected substance. All 3 trials that compared dry needling with injection found no difference in effect. Direct needling of myofascial trigger points appears to be an effective treatment, but the hypothesis that needling therapies have efficacy beyond placebo is neither supported nor refuted by the evidence from clinical trials. Any effect of these therapies is likely because of the needle or placebo rather than the injection of either saline or active drug. Controlled trials are needed to investigate whether needling has an effect beyond placebo on myofascial trigger point pain. Copyright 2001 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation
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            Thoracic outlet syndrome: definition, aetiological factors, diagnosis, management and occupational impact.

            Thoracic outlet syndrome is a controversial cause of neck and shoulder pain due to complex mechanisms involving muscular dysfunction and nerve compression. Although management of thoracic outlet syndrome must be based on a multidisciplinary approach, physicians and occupational therapist should be familiar with the principles of diagnosis and treatment. The purpose of this article is to review the definitions, diagnosis and management of this syndrome. A particular emphasis was described on the links between the workplace and the individual in the pathogenesis, prevalence in the workforce and the course of this disease.
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              Congenital anomalies associated with thoracic outlet syndrome. Anatomy, symptoms, diagnosis, and treatment.

              Wiets Roos (1976)
              Personal evaluation of more than 2,300 patients for possible thoracic outlet syndrome (TOS) and knowledge gained from 980 TOS operations in 766 patients (operative incidence of 33.7 per cent of the patients examined) have shown that most patients with TOS have anomalous fibrous muscular bands near the brachial plexus that predispose them to neurologic irritation or compression involving the plexus. Anatomic analysis during operations for TOS, plus cadaver dissections, have disclosed seven distinct types of fibromuscular bands in addition to the less frequent bony anomalies long associated with neurovascular compression. One third of fifty-eight cadaver thoracic outlets dissected showed at least one of the seven muscular anomalies recognized at operations. These anomalies can be accurately related to the patients' symptoms, which are neurologic complaints in 99 per cent of the patients examined who ultimately have the diagnosis of TOS established. Neurologic symptoms are clearly explained by the anomalous bands irritating or compressing the brachial plexus and rarely have any effect on the subclavian vessels. These studies, and others before, have shown no correlation with impairment of circulation or positional radial pulse changes in almost all patients with true TOS. Also, arteriograms and nerve conduction studies generally have failed to be of value in establishing the accurate diagnosis. Reasons for these conclusions are explained, and the most reliable tests are described. The most effective means of relief of severe symptoms of TOS is to alter the mechanical irritation or compression of the brachial plexus by completely resecting the first throacic rib and all anomalous fibromuscular tissue around the plexus and subclavian vessels. If patients are are throughly evaluated with appropriate tests and highly selected for surgical treatment, gratifying relief will result in more than 90 per cent of patients, if the correct operation is performed with meticulous technic.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                ramb
                Revista da Associação Médica Brasileira
                Rev. Assoc. Med. Bras.
                Associação Médica Brasileira (São Paulo, SP, Brazil )
                0104-4230
                1806-9282
                July 2019
                : 65
                : 7
                : 982-987
                Affiliations
                [2] São Paulo São Paulo orgnameUniversidade de São Paulo orgdiv1Faculdade de Medicina orgdiv2Departamento de Patologia Brazil
                [3] São Paulo São Paulo orgnameUniversidade Nove de Julho orgdiv1Programa de Mestrado Profissional de Gestão em Saúde Brazil
                [1] São Paulo São Paulo orgnameUniversidade de São Paulo orgdiv1HC orgdiv2Instituto de Medicina Física e Reabilitação Brazil
                Article
                S0104-42302019000700982
                10.1590/1806-9282.65.7.982
                e3c25bea-bb3e-4454-b241-45d7146e1763

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

                History
                : 20 April 2019
                : 09 April 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 23, Pages: 6
                Product

                SciELO Brazil

                Categories
                Original Article

                Ultrassonografia de intervenção,Thoracic Outlet Syndrome,Myofascial Pain Syndromes,Anesthetics,Ultrasonics,Ultrasonography, Interventional,Síndrome do Desfiladeiro Torácico,Síndrome da Dor Miofascial,Anestésicos,Ultrassom

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