Purpose: Analyze the influence of low-intensity laser therapy in the sciatic nerve regeneration of rats submitted to controlled crush through histological analysis. Methods: Were used 20 Wistar rats, to analyze the influence of low-intensity laser therapy in the sciatic nerve regeneration, where the injury of the type axonotmesis was induced by a haemostatic clamp Crile (2nd level of the rack). The animals were randomly distributed in 2 groups. Control group (CG n = 10) and Laser group (LG n = 10). These were subdivided in 2 subgroups each, according to the euthanasia period: (CG14 -n = 5 and CG21 -n = 5) and (LG14 -n = 5 and LG21 -n = 5). At the end of treatment, the samples were removed and prepared for histological analysis, where were analyzed and quantified the following findings: Schwann cells, myelinic axons with large diameter and neurons. Results: In the groups submitted to low-intensity laser therapy, were observed an increase in the number of all analyzed aspects with significance level. Conclusion: The irradiation with low intensity laser (904nm) influenced positively the regeneration of the sciatic nerve in Wistar rats after being injured by crush (axonotmesis), becoming the nerve recovery more rapid and efficient.
OBJECTIVE: To analyze the possible effects of low-intensity ultrasound on induced tibia fracture of rats in a dose commonly used in physical therapy treatments. METHODS: Twenty male Wistar rats were divided into two groups with 10 animals each. In the ultrasound group (USG), the animals were submitted to bone fracture and treatment with therapeutic ultrasound (TUS). Ultrasonic parameters are: frequency of 1.0 MHz, intensity of 0.2 W/cm2, pulsed mode at 20%, applied in stationary form during 10 minutes on the fracture region, for five weeks. The control group (CG) was submitted to bone fracture but not treated with ultrasound. RESULTS: The radiographies showed better consolidation in USG compared to CG. The statistical tests for alkaline phosphatase and serum calcium did not show significant difference between groups. CONCLUSION: According to this study, TUS, applied with these parameters (not commonly used for bone therapy) accelerates bone healing, confirmed by radiography, yet the biochemical analysis was not conclusive. One reason for this inconsistency may have been some inadequacy of the biochemical protocol, currently under investigation. Level of Evidence II, Prospective comparative study.
Aos meus pais Roberto Pontes e Plácida Pontes, os grandes responsáveis por todas as minhas conquistas alcançadas no passado, no presente e no futuro. A vocês devo tudo.À minha princesa, Ana Marina Dutra, minha companheira de vida e motivação diária para ser o melhor de mim.À minhas irmãs Lorena Pontes Rosa e Luana Pontes Bragança, que me apoiam durante toda a vida.Ao professor Wilson Marques Júnior, pela confiança depositada, por sempre oferecer todo o apoio e dividir sua sabedoria diariamente. Tenho sorte de tê-lo como mestre.Aos meus professores e contratados da residência médica, menção especial ao professor Amilton Barreira, à professora Cláudia Sobreira, e à professora Vanessa Daccach, por todos os ensinamentos.Aos amigos feitos durante a residência médica, os quais carregarei comigo para sempre, em especial aos amigos Isaac Holanda, Lucas Clementino, Lucas Ravagnani e Luiza Barretto, por dividirem essa jornada comigo.Ao Oswaldo Mazini Júnior, que muito ajudou na pesquisa dos exames dos pacientes nos bancos de dados, o que permitiu desenvolver esse trabalho.À Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), pelo apoio as universidades, auxiliando no desenvolvimento desse e outros trabalhos Palavras-chave: Bloqueio de condução. Eletroneuromiografia. Condução nervosa. Neurofisiologia. Neuropatia.
No abstract
Objetivo: analisar os motivos para não doação de órgãos em hospital de referência na Amazônia. Método: foi realizado um estudo transversal, com os pacientes do Hospital Metropolitano de Urgência e Emergência, após declaração de morte cerebral. Resultados: observamos que no hospitalmetropolitano, 65% das famílias foram abordadas, porém 73% destas não permitiram a doação, sendo 68% das recusas pelo desejo de manutenção do corpo íntegro. Conclusão: no hospital metropolitano, a justificativa principal de negação familiar da doação foi o desejo do corpo íntegro. A não abordagem familiar foi devido à contraindicação médica ou impossibilidade de localizar a família em tempo hábil.
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