Desarrollo de técnicas microquirúrgicas usando tinción vascular con y sin silicona en placenta humana con modelos craneales 3D / Development of microsurgical techniques using vascular staining with and without silicone in human placenta with 3D cranial models

En las ultimas décadas, ha habido un cambio en la formación en las especialidades quirúrgicas, lo cual ha llevado a plantearse la necesidad de adquisición de habilidades por fuera del quirófano por medio de la simulación. El objetivo de este trabajo es demostrar que el uso de placentas humanas con modelo craneal tridimensional (3D), es un método de alta fidelidad y retroalimentación para el desarrollo de técnicas microquirúrgicas. Se realizó un estudio de evaluación técnica en el Laboratorio de Microcirugía Dr. Evandro de Oliveira del Hospital de la Beneficiencia de Portugal de São Paulo, utilizando 15 placentas con técnicas de coloración y preservación vascular con silicona para moldes; realizando ejercicio de anastomosis vasculares, ejercicios de disección parenquimatosa placentaria que remedan la disección aracnoidea y del valle silviano, además de simulación de resección de tumores. Cualitativamente la placenta humana es un método con alta fidelidad y retroalimentación, además, es de acceso universal para la adquisición de habilidades microquirúrgicas, que asociada a un modelo craneal 3D permite el perfeccionamiento de craneotomías, coordinación visomotriz, propiocepción y relación de profundidad que se requieren para abordajes neuroquirúrgicos.

In the last decades, there has been a change in training in surgical specialties, which has led to the need to acquire skills outside the operating room through simulation. The aim of this work is to demonstrate that the use of human placentas with a three-dimensional (3D) cranial model is a high fidelity and feedback method for the development of microsurgical techniques. A technical evaluation study was carried out in the Dr. Evandro de Oliveira Microsurgery Laboratory of the Hospital de la Beneficiencia de Portugal in São Paulo, using 15 placentas with coloration techniques and vascular preservation with silicone for molds; performing vascular anastomosis, placental parenchymal dissection exercises that mimic arachnoid and sylvian fissure dissection, in addition to simulating tumor resection. Qualitatively, the human placenta is a method with high fidelity and feedback, and it is also universally accessible for the acquisition of microsurgical skills, which, associated with a 3D cranial model, allows the refinement of the craniotomies, visomotor coordination, proprioception, and depth relationship required for neurosurgical approaches.

Navegando por la fisura silviana: anatomía microquirúrgica, neuroimágenes y técnica quirúrgica / Navigating the sylvian fissure: microsurgical anatomy, neuroimaging, and surgical technique

Objetivo: Describir la anatomía quirúrgica de la fisura silviana (FS) a través de disecciones cadavéricas y neuroimágenes; desarrollar su aplicación microquirúrgica. Materiales y métodos: Se estudiaron 10 hemisferios cadavéricos humanos fijados y un cráneo humano en seco, a través de la disección de fibras blancas y de la anatomía arterial y neural, utilizando un microscopio quirúrgico. Las arterias cerebrales fueron inyectadas con silicona coloreada. La anatomía quirúrgica fue correlacionada con la anatomía neuroimagenológica. Finalmente, se recolectó la experiencia microquirúrgica adquirida y, a su vez, la anatomía del Complejo Silviano, fue revisada. Resultados: La FS se extiende desde la cara basal a la lateral del cerebro. Cada superficie tiene una parte superficial (tronco silviano y sus ramos), intermedia (compartimientos anterior y opercular lateral) y profunda (compartimiento esfenoidal, hendidura insular anterior y lateral y la región retroinsular). En 7 de los 10 hemisferios, el surco central no se intersectó con la FS en la superficie lateral del cerebro. En el 80% de los hemisferios, la principal bifurcación de la arteria cerebral media se localizó en o proximal al limen insular. Debajo de la pars triangularis se localiza el punto más ancho de la superficie lateral de la FS. Los autores comienzan la disección de la misma en o proximalmente a este punto. Conclusiones: El conocimiento anatómico profundo y su aplicación a las neuroimágenes, son herramientas esenciales para el planeamiento prequirúrgico y son requisitos mandatorios para operar con seguridad a través y alrededor de la FS

Objective: The aim of this study is to describe the microsurgical anatomy of the sylvian fissure, through cadaveric dissections and neuroimaging and to elucidate its clinical application for microsurgery. Methods: One human skull and ten cadaveric human hemispheres were studied through white matter fiber dissections and arterial and neural anatomy of the sylvian fissure and insular dissections under the microscope. The cerebral arteries were perfused with colored latex. The surgical anatomy was correlated with neuroimaging anatomy. Finally, the microsurgical experienced gained applying this anatomical knowledge was gathered, and the literature about the anatomy of the sylvian complex was revised, as well. Results: The Sylvian fissure extends from the basal to the lateral surface of the brain. Each surface has a superficial (sylvian stem and its rami), intermediate (anterior and lateral opercular compartments) and deep parts (sphenoidal compartment, anterior and lateral insular clefts and retroinsular region). In 7 out of 10 hemispheres, the central sulcus did not intersect with the sylvian fissure on the lateral surface of the brain. In 80% of the hemispheres, the middle cerebral artery main bifurcation was localized at or proximal to the limen insulae. Beneath the pars triangularis, the widest point of the lateral surface of the sylvian fissure is located. The authors start dissecting the sylvian fissure at this point. Conclusion: The thorough anatomical knowledge with its clinical application in modern neuroimaging are essential tools for preoperative planning and are mandatory requisites to safely operate through and around the sylvian fissure anatomical complex.

Parkinson's disease and wearable devices, new perspectives for a public health issue: an integrative literature review

SUMMARY Parkinson's disease is the second most common neurodegenerative disease, with an estimated prevalence of 41/100,000 individuals affected aged between 40 and 49 years old and 1,900/100,000 aged 80 and over. Based on the essentiality of ascertaining which wearable devices have clinical literary evidence and with the purpose of analyzing the information revealed by such technologies, we conducted this scientific article of integrative review. It is an integrative review, whose main objective is to carry out a summary of the state of the art of wearable devices used in patients with Parkinson's disease. After the review, we retrieved 8 papers. Of the selected articles, only 3 were not systematic reviews; one was a series of cases and two prospective longitudinal studies. These technologies have a very rich field of application; however, research is still necessary to make such evaluations reliable and crucial to the well-being of these patients.

RESUMO A doença de Parkinson figura como a segunda doença neurodegenerativa mais comum. Sua prevalência é estimada de 41 por 100.000 pessoas entre 40 e 49 anos a 1.900 por 100.000 pessoas com 80 anos ou mais. Baseando-se na essencialidade de averiguar os dispositivos vestíveis que possuem evidências clínicas literárias e com o objetivo de analisar as informações reveladas por tais tecnologias, temos a construção deste artigo científico de revisão integrativa. Trata-se de uma revisão integrativa que tem como principal objetivo realizar um sumário do estado da arte de dispositivos vestíveis utilizados em pacientes com doença de Parkinson. Após realizada a revisão, obtiveram-se oito artigos. Pode-se observar que dos artigos selecionados, apenas três não eram revisões sistemáticas, sendo um deles uma série de casos e outros dois, estudos longitudinais prospectivos. A utilização dessas tecnologias possui um campo muito rico para atuar, contudo ainda são necessárias pesquisas para que tais avaliações sejam fidedignas e cruciais para o bem-estar desses pacientes.

The Mechanistic Basis for Photobiomodulation Therapy of Neuropathic Pain by Near Infrared Laser Light

Background and Objective Various irradiances have been reported to be beneficial for the treatment of neuropathic pain with near infrared light. However, the mechanistic basis for the beneficial outcomes may vary based on the level of irradiance or fluence rate used. Using in vivo and in vitro experimentalmodels, this study determined the mechanistic basis of photobiomodulation therapy (PBMT) for the treatment of neuropathic pain using a high irradiance. Study Design/Materials and Methods ln vitro experiments: Cultured, rat DRG were randomly assigned to control or laser treatment (L T) groups with different irradiation times (2, 5, 30, 60 or 120s). The laser parameters were: output power » 960 mW, irradiance » 300mW/cm2, 808 nm wavelength and spot size » 3cm diameter/ area » 7.07cm2, with different fluences according to irradiation times. Mitochondrial metabolic activity was measured with the MTS assay. The DRG neurons were immunostained using a primary antibody to ß-Tubulin III. ln vivo experiments: spared nerve injury surgery (SNI), an animal model of persistent peripheral neuropathic pain, was used. The injured rats were randomly divided into three groups (n » 5). 1) Control: SNI without LT, 2) Short term: SNI with LT on day 7 and euthanized on day 7, 3) Long term: SNI with LT on day 7 and euthanized on day 22. An 808 nm wavelength laser was used for all treatment groups. Treatment was performed once on Day 7 post-surgery. The transcutaneous treatment parameters were: output power: 10 W, fluence rate: 270 mW/cm2, treatment time: 120s. The laser probe was moved along the course of the sciatic/sural nerve during the treatment. Within 1 hour of irradiation, behavior tests were performed to assess its immediate effect on sensory allodynia and hyperalgesia caused by SNI. Results ln vitro experiments: Mitochondrial metabolism was significantly lower compared with controls for all LT groups. Varicosities and undulations formed in neurites of DRG neurons with a cell body diameter 30µm or less. ln neurites of DRG neurons with a cell body diameter of greater than 30µm, varicosities formed only in the 120s group. ln vivo experiments: For heat hyperalgesia, there was a statistically significant reduction in sensitivity to the heat stimulus compared with the measurements done on day 7 prior to LT. A decrease in the sensitivity to the heat stimulus was found in the LT groups compared with the control group on day 15 and 21. For cold allodynia and mechanical hyperalgesia, a significant decrease in sensitivity to cold and pin prick was found within 1 hour after L T. Sensitivity to these stimuli returned to the control levels after 5 days post-L T. No significant difference was found in mechanical allodynia between control and L T groups for all time points examined. Conclusion These in vitro and in vivo studies indicate that treatment with an irradiance/fluence rate at 270 m W/cm2 or higher at the level of the nerve can rapidly block pain transmission. A combination therapy is proposed to treat neuropathic pain with initial high irradiance/fluence rates for fast pain relief, followed by low irradiance/ fluence rates for prolonged pain relief by altering chronic inflammation.

Analysis of the occupational therapist's activities as a professional adviser in the professional rehabilitation service of the National Institute of Social Security (INSS) / Análise sobre a atuação do terapeuta ocupacional como orientador profissional no serviço de reabilitação profissional do Instituto Nacional do Seguro Social (INSS)

Introduction: The INSS Professional Rehabilitation Service (PR) underwent several changes, especially those that occurred with the creation of the SUS and the withdrawal of any kind of health care from the institute. In 2008, with the revitalization of the service, several occupational therapists joined the institution, but remained a model of action without focusing on health care and without valuing the professional specificity. This form of intervention has been causing discussions about the work of these professionals, implied by the lack of literature that bases their interventions and strengthens the maintenance of their professional identity within this new scenario. Objective: To investigate the relationship between Occupational Therapy and the role played by occupational therapists in the INSS PR service. Method: Qualitative research of the exploratory type, being observed the performance of an occupational therapist of the Executive Management Recife/PE, Responsible for Professional Orientation. Results: It was verified that in the INSS, the occupational therapist employs many specificities of its profession, which are related to: objective (emancipation of the individual and insertion on work activity), object (human doing, occupational performance), instrument (analysis of the labor activity and workstation). In addition, it was noticed that the social security context exerts some limitations in the occupational therapeutic action, within the scope of the institutional norms of management and of conducting the professional doing in the RP. Conclusion: Relationships between Occupational Therapy and function of Responsible for Professional Orientation of INSS were established, indicating ways for a practice based on the theoretical bases of the profession. It is recommended to conduct researches in the area that analyze the performance of this professional and the impact of their interventions in the replacement of INSS policyholders in the labor market.

Introdução: O Serviço de Reabilitação Profissional (RP) do INSS sofreu várias mudanças, destacando-se aquelas que ocorreram com a criação do SUS e a retirada de qualquer tipo de assistência à saúde do instituto. Em 2008, com a revitalização do serviço, vários terapeutas ocupacionais ingressaram na instituição, mas permaneceu um modelo de atuação sem focar a assistência à saúde e sem valorizar a especificidade profissional. Essa forma de intervenção vem causando discussões quanto a atuação desses profissionais, implicadas pela falta de literatura que embase suas intervenções e fortaleça a manutenção de sua identidade profissional dentro desse novo cenário. Objetivo: Investigar a relação existente entre a terapia ocupacional e a função desempenhada pelos terapeutas ocupacionais no serviço de Reabilitação Profissional do INSS. Método: Pesquisa qualitativa, do tipo exploratória, sendo observada a atuação de uma terapeuta ocupacional da Gerência Executiva Recife/PE, Responsável pela Orientação Profissional. Resultados: Verificou-se que, no INSS, o terapeuta ocupacional emprega muitas especificidades de sua profissão, quais sejam relacionadas a: objetivo (emancipação do sujeito e inserção em atividade de trabalho), objeto (fazer humano, desempenho ocupacional), instrumento (análise da atividade laboral e do posto de trabalho). Além disso, percebeu-se que o contexto previdenciário exerce algumas limitações na atuação terapêutica ocupacional, no âmbito das normas institucionais de gestão e de condução do fazer profissional na RP. Conclusão: Foram estabelecidas relações entre a terapia ocupacional e a função de Responsável pela Orientação Profissional do INSS, indicando caminhos para uma prática sustentada nas bases teóricas da profissão. Recomenda-se a realização de pesquisas na área que analisem a atuação desse profissional e o impacto de suas intervenções na recolocação de segurados do INSS no mercado de trabalho.

Manobra de Valsalva como preditor do resultado da cirurgia de hérnia discal lombar / Valsalva maneuver as a predictor of herniated lumbar disc surgical treatment results

Objetivo: Demonstrar o valor da resposta dolorosa à realização da manobra de Valsalva na escolhado tratamento adequado da hérnia discal lombar. Casuística e método: Estudo prospectivo de 2.200pacientes de ambos os gêneros, de diversas faixas etárias, atendidos e acompanhados no HospitalAntônio Targino e na Clínica de Neurologia e Neurocirurgia Domício Holanda, na cidade de CampinaGrande, PB, com diagnóstico de hérnia discal, no período de janeiro de 1993 a outubro de 2008. Ospacientes foram divididos em dois grupos: um grupo de 2.000 pacientes com lombociatalgia decorrentesde hérnias lombares que apresentavam dor durante a manobra de Valsalva e outro grupo de 200 pacientes que tinham as mesmas características clínicas do primeiro grupo, porém não apresentavam exacerbação da dor durante manobra de Valsalva. Resultado: Os 2.000 pacientes que apresentaram dor com a execução da manobra e foram submetidos à cirurgia tiveram boa resposta, enquanto os outros200 pacientes que não referiram a mesma dor e que foram seguidos de maneira ambulatorial tiveramuma diminuição dessa dor, porém não precisaram de tratamento cirúrgico. Conclusão: A dor provocada pela manobra de Valsalva é sinal extremamente útil no que se refere à triagem desses pacientes.

Valsalva maneuver as a predictor of herniated lumbar disc surgical treatment resultsObjective: Demonstrate the value of pain response to the Valsalva maneuver in choosing the appropriate treatment of lumbar disc herniation. Patients and methods: Prospective study of 2,200 patients of both genders in various age groups, treated and followed at Hospital Antônio Targino and Clínica de Neurologia e Neurocirurgia Domício Holanda, Campina Grande, PB, Brazil with disc herniation in theperiod from January 1993 to and in October 2008. Patients were divided into two groups: one group of2,000 patients with herniated lumbar disc with radicular pain that presented pain to maneuver Valsalvaand another group of 200 patients who had similar clinical characteristics of the first group, but showed no exacerbation of pain during maneuver of Valsalva. Results: The 2,000 patients from the first group (Valsalva-positive) underwent surgery and had a good response, while the other 200 Valsalva-negativepatients were followed in outpatient settings, had the pain decreased but did not require surgical treatment. Conclusion: The pain caused by the Valsalva maneuver is extremely useful signal with regard to triage these patients.

Técnica de microincisão na cirurgia do túnel do carpo / Micro-incision for the surgery of carpal tunnel syndrome

Contexto: O tratamento proposto para síndrome do túnel do carpo é dividido em conservador e cirúrgico. O tratamento conservador versa em fisioterapia e uso de medicamentos. A cirurgia para liberação do túnel do carpo é um assunto corrente na literatura, motivo de diversas publicações, principalmente a partir dos anos 1950. Na liberação tradicional, o cirurgião faz uma incisão de 5 cm a 6 cm, estendida longitudinalmente em relação à prega formada pelo punho, e realiza a liberação do ligamento transverso do carpo sob visualização direta. Objetivo: Apresentar a técnica cirúrgica desenvolvida por nós, que consiste em uma microincisão de 1 cm na linha média da prega do punho e recortar os bordos do retináculo dos flexores, e demonstrar as vantagens dessa técnica, perante a vigente. Casuística: A técnica foi utilizada em 40 pacientes de ambos os gêneros, das mais variadas faixas etárias, atendidos e acompanhados no Hospital Antônio Targino e na Clínica de Neurologia e Neurocirurgia Domício Holanda, (ambos situados na cidade de Campina Grande, PB) com síndrome do túnel do carpo no período de janeiro de 1993 a dezembro de 2008. Resultados: Verificou-se que houve diminuição da dor, a técnica proporcionou melhor efeito estético, uma vez que, pela microincisão na linha da prega palmar, pouco tempo após o procedimento a cicatriz perdia-se entre as pregas palmares; em nenhum dos pacientes acompanhados após a cirurgia houve recidiva, constituindo uma vantagem sobre a técnica vigente; quanto à cicatrização, não houve formação de queloides em nenhum dos pacientes, ratificando-se melhor reposta cicatrizante; melhor exequibilidade ao cirurgião e menor tempo cirúrgico. Conclusão: A técnica apresentada oferece resultados extraordinários, diminuindo a chance de recidivas, trazendo melhor exequibilidade ao cirurgião e levando maior satisfação aos pacientes.

Background: The proposed treatment for carpal tunnel syndrome is divided into conservative and surgical. Conservative treatment consists in physiotherapy and medication. Surgery to release the carpal tunnel is a current topic in the literature, subject to various publications, mostly from the 50s. In the traditional release, the surgeon makes an incision from 5 cm to 6 cm long, extended longitudinally in relation to the fold formed by the handle, and holds the release of the transverse carpal ligament under direct visualization. Objective: To present the surgical technique developed by us, which is a micro-incision 1 cm long in the midline of the wrist crease and cut the edges of the flexor retinaculum and demonstrate the advantages of this technique. Methods: The technique was used in forty patients presenting carpal tunnel syndrome, of both genders in a wide range of age groups from January 1993 to December 2008. Results: We found in all the cases that the pain was relieved, a better cosmetic result, the surgical scar was imperceptible shortly after the procedure lost in the palmar crease, there was no recurrence, providing an advantage over the usual techniques as for healing, no keloid formation confirming that there was better healing response, best feasibility for the surgeon and a shorter duration of surgery. Conclusion: The technique presented provides extraordinary results, reducing the chance of recurrence, easier feasibility to the surgeon and more patient?s satisfaction.

Hematoma intradural espontâneodo canal espinal / Spontaneous intradural spinal hematoma

Um caso de hematoma na intradural espinal espontâneo ao nível de T11-12, simulando um quadro de tumor, é relatado. O diagnóstico de processo expansivo intradural extramedular foi feito por meio de ressonância magnética. O exame histopatológico confirmou tratar-se de hematoma organizado. Hematomas espinais espontâneos são raros, e os casos descritos referem-se a hematomas extradurais. Não encontramos na literatura pesquisada hematoma intradural espinal espontâneo.

A case of intradural spontaneous hematoma in the thoracic spine (T11-12), simulating a tumor is presented. The mass lesion was detected by nuclear magnetic resonance imaging, in a patient presenting paraplegia. The diagnosis of organized hematoma was coinfirmed by histopathology. Spinal spontaneous hematomas are very rare and the reports refer to extradural hematomas. Descrition of spontaneous subdural spinal hematoma was not found in the literature searched.