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Aesthetic assessment of breast reconstruction in the eyes of plastic surgeons versus nonplastic physicians
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Siqueira, Hianga Fayssa Fernandes

; Teixeira, Jorge

; Lessa Filho, Reginaldo

; Brito, Erika de Abreu Costa

; Lima, Marcela

; Moura, Alex Rodrigues

; Figueiredo, Tarcizo

; Oliveira, Thiago

; Vasconcelos, Ana Alice Santana

; Lima, Carlos Anselmo

Revista da Associação Médica Brasileira

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jan 2022, Volume 68 N. 1 Pages 13 - 18

Abstract: En | Text: En | PDF: En

SUMMARY OBJECTIVE: The aim of this study was to evaluate the perception of the aesthetic result of breast reconstruction surgery from the perspective of plastic surgeons compared with physicians who are not specialists in plastic surgery. METHODS: Twenty patients who underwent breast reconstruction after mastectomy had their aesthetic results evaluated by 16 plastic surgeons and 16 nonplastic physicians, yielding a total of 620 ratings (320 ratings from plastic surgeons and 320 ratings from other specialists). For all analyses, the level of rejection adopted for the null hypothesis was 5% (p-value <0.05). RESULTS: Significant differences were observed between the two groups. On average, medical professionals who specialized in plastic surgery always obtained higher scores than other physicians. However, no significant differences were found in the assessment of the aesthetic outcome of breast reconstruction according to the sex of the rating medical professional for any of the assessments considered in this study. A strong positive linear correlation between the time since training in the medical specialty of plastic surgery (r=0.750, p=0.001) and the mean aesthetic outcome score was observed in this study. CONCLUSION: Plastic surgeons assessed the aesthetic results of breast reconstruction more positively than nonplastic physicians.

https://doi.org/10.1590/1806-9282.20210110

Effect of topical corticosteroids on nasal patency after acute positive airway pressure exposure
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Balsalobre, Leonardo

; Figueiredo, Aline Bruno

; Pezato, Rogério

; Fujita, Reginaldo Raimundo

Brazilian Journal of Otorhinolaryngology

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may 2021, Volume 87 N. 3 Pages 326 - 332

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Introdução Congestão e obstrução nasais são relatadas na maioria dos usuários de pressão positiva contínua nas vias aéreas e são frequentemente mencionadas como razões para a falta de aderência. A inflamação basal devida à rinite alérgica pode aumentar ou agravar o efeito inflamatório do alto fluxo de ar na cavidade nasal como resultado da pressão positiva contínua nas vias aéreas e aumentar a intolerância à mesma. Nesse cenário, espera-se que os esteróides intranasais neutralizem a inflamação nasal causada pela rinite alérgica e/ou pela pressão positiva contínua nas vias aéreas. Objetivo Avaliar os efeitos do uso tópico de corticosteroides na patência nasal após exposição aguda à pressão positiva. Métodos Dez indivíduos com rinite alérgica foram expostos a uma hora de pressão contínua nas vias aéreas (15 cm H2O) na cavidade nasal, fornecida por um dispositivo de pressão positiva contínua nas vias aéreas. A escala visual analógica, a escala Nasal Obstruction Symptom Evaluation, rinometria acústica e pico de fluxo inspiratório nasal foram aplicados antes e após a intervenção. Após 4 semanas de aplicação tópica de esteroide nasal (budesonida), a exposição positiva à pressão foi repetida, bem como as primeiras avaliações. Resultados Os pacientes relataram uma melhoria estatisticamente significante tanto na escala visual analógica (p = 0,013) quanto na escala Nasal Obstruction Symptom Evaluation (p < 0,01). Além disso, as medidas objetivas também foram melhoradas, com aumento do volume da cavidade nasal na rinometria acústica (p = 0,02) e aumento do pico de fluxo inspiratório nasal (p = 0,012), após o tratamento com corticosteroide. Conclusão Em pacientes com rinite alérgica, a terapia com corticosteroide intranasal melhorou os parâmetros objetivos e subjetivos da patência nasal após exposição aguda da cavidade nasal à pressão positiva.

Abstract Introduction Nasal congestion and obstruction are reported in the majority of continuous positive airway pressure users and are frequently cited as reasons for noncompliance. Baseline inflammation due to allergic rhinitis could increase or exacerbate the inflammatory effect of high airflow in the nasal cavity as the result of continuous positive airway pressure and lead to greater continuous positive airway pressure intolerance. In this setting, intranasal steroids would be expected to counteract the nasal inflammation caused by allergic rhinitis and/or continuous positive airway pressure. Objective The aim of the present study is to evaluate the effects of topical corticosteroid use on nasal patency after acute exposure to positive pressure. Methods Ten individuals with allergic rhinitis were exposed to 1 h of continuous airway pressure (15 cm H2O) in the nasal cavity, delivered by a continuous positive airway pressure device. Visual analog scale, nasal obstruction symptom evaluation scale, acoustic rhinometry and peak nasal inspiratory flow were performed before and after the intervention. After 4 weeks topical nasal steroid (budesonide) application, positive pressure exposure was repeated as well as the first assessments. Results Patients reported a statistically significant improvement both on the visual analog (p = 0.013) and obstruction symptom evaluation scales (p < 0.01). Furthermore, objective measurements were improved as well, with increased nasal cavity volume on acoustic rhinometry (p = 0.02) and increased peak nasal inspiratory flow (p = 0.012), after corticosteroid treatment. Conclusion In patients with allergic rhinitis, intranasal corticosteroid therapy improved objective and subjective parameters of nasal patency after acute exposure of the nasal cavity to positive pressure.

https://doi.org/10.1016/j.bjorl.2019.09.011 85 downloads

Agricultores familiares em canais curtos de comercialização: uma análise quantitativa das feiras municipais
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Verano, Thiago de Carvalho

; Figueiredo, Reginaldo Santana

; Medina, Gabriel da Silva

Revista de Economia e Sociologia Rural

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2021, Volume 59 N. 3 elocation e228830

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo: O potencial de inserção comercial de agricultores familiares em canais curtos de comercialização tem sido explorado por importantes estudos qualitativos. Este trabalho apresenta contribuições adicionais a esses esforços ao quantificar a participação de agricultores familiares nas feiras municipais. Verifica-se em que medida as feiras representam alternativas à inserção comercial ao proporcionar: (a) inclusão socioprodutiva dos agricultores familiares; (b) fortalecimento de canais curtos de comercialização; e (c) alternativa ao sistema agroalimentar industrial. A partir de dados quantitativos de 59 feiras, amostradas de um universo de 369 no estado de Goiás, detectou-se que 42,37% das feiras oferecem oportunidades de inclusão comercial aos agricultores familiares, 32,20% fortalecem canais curtos de comercialização e 35,59% funcionam como alternativa ao sistema agroalimentar industrial. Do total, 10,17% das feiras atendem aos três critérios supracitados concomitantemente. As regressões estatísticas revelam que: (1) quanto menor a porcentagem de atravessadores e maior a de agricultores ligados a organizações, maior é a possibilidade de a feira ter mais bancas da agricultura familiar; (2) quanto maior a relevância da feira como espaço de articulação entre agentes e para a catalisação de novos negócios entre agricultores, maior a possibilidade desse canal exercer influência na criação ou no fortalecimento de políticas públicas.

Abstract: Qualitative research projects have revealed the importance of short food supply chains for providing alternatives for family farmers marketing their agricultural goods. This study presents an additional contribution to these efforts by quantifying the participation of family farmers in farmers’ markets at the county level. It assesses to what extent farmers’ markets represent an alternative market channel by providing: (a) opportunities for family farmers selling their goods; (b) functional short food supply chains and; (c) alternatives to the industrial supply chains. Based on quantitative data from 59 markets, sampled from a universe of 369 farmers’ markets in the Brazilian State of Goiás, we found that 42.37% of the farmers’ markets offer opportunities for family farmers, 32.20% promote local short marketing channels, and 35.59% work as an alternative to the industrial agri-food systems. As a whole, 10.17% of the studied farmers’ markets meet the three above-mentioned objectives. Statistical regressions reveal that: 1) the lower the percentage of middlemen and the greater the percentage of family farmers taking part in farming organizations, the greater the number of stands owned by family farmers; 2) the greater the relevance of the farmers’ market in both the organization of farmers and in the catalysis of new business, the greater the positive influence on public policies.

https://doi.org/10.1590/1806-9479.2021.228830 982 downloads

Mayaro virus detection in the western region of Pará state, Brazil
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Saatkamp, Cassiano Junior

; Rodrigues, Luís Reginaldo Ribeiro

; Pereira, Andrew Mairom Nogueira

; Coelho, João Alberto

; Marques, Rose Grace Brito

; Souza, Victor Costa de

; Nascimento, Valdinete Alves do

; Saatkamp, Jamille Gomes dos Santos

; Naveca, Felipe Gomes

; Figueiredo, Regina Maria Pinto de

Revista da Sociedade Brasileira de Medicina Tropical

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2021, Volume 54 elocation e0055-2020

Abstract: En | Text: En | PDF: En

Abstract INTRODUCTION Mayaro virus (MAYV) was found in Pará state, Brazil, in 1955. Since then, sporadic outbreaks have occurred in different regions of the country. METHODS: Serum sample were collected from 49 individuals in 2016 and were initially tested for dengue virus (DENV) by real-time (RT) polymerase chain reaction (PCR). DENV-negative samples were tested for MAYV and Oropouche virus (OROV) by multiplexed RT quantitative PCR. RESULTS: All samples were negative for DENV and OROV, but MAYV was detected in four samples. CONCLUSIONS: Differential diagnoses of acute febrile syndrome are required, especially in regions where several arboviruses with similar clinical manifestations are endemic.

https://doi.org/10.1590/0037-8682-0055-2020 393 downloads

Placental adhesion disorder: magnetic resonance imaging features and a proposal for a structured report
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Agostini, Thais Coura Figueiredo

; Figueiredo, Reginaldo

; Warmbrand, Gisele

; Torres, Ulysses Santos

; Pria, Hanna Rafaela Ferreira Dalla

; D’Ippolito, Giuseppe

Radiologia Brasileira

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oct 2020, Volume 53 N. 5 Pages 329 - 336

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo A desordem de adesão placentária é um tipo de placentação anormal que ocorre quando há penetração das vilosidades coriônicas na parede uterina. O acretismo placentário tornou-se mais frequente, principalmente devido às taxas crescentes de cesarianas. A ultrassonografia é a modalidade de imagem de primeira linha para avaliação placentária, apresentando papel limitado nos casos de placenta posterior e achados duvidosos. Nesses casos, a ressonância magnética (RM) está indicada e é bastante eficaz, principalmente para identificar a disseminação extrauterina da placenta em gestantes de alto risco. Neste artigo de revisão apresentamos os dez principais sinais de desordem de adesão placentária pela RM descritos na literatura. Junto a isso, propomos um modelo de relatório estruturado e um questionário direcionado com o intuito de identificar os possíveis fatores de risco da paciente a ser submetida ao exame de RM da placenta, atendendo às expectativas dos especialistas envolvidos no planejamento do tratamento multidisciplinar necessário para minimizar a morbimortalidade materna.

Abstract Placental adhesion disorder encompasses the various types of abnormal placentation that occur when the chorionic villi penetrate the uterine wall. Placenta accreta has become more common, mainly because of the increasing rates of cesarean section. Although ultrasound is the first-line imaging modality for evaluation of the placenta, it plays a limited role in cases of posterior placenta accreta and inconclusive findings. In such cases, magnetic resonance imaging (MRI) is indicated, mainly because it is a more accurate means of identifying placental invasion of extrauterine structures in high-risk pregnant women. In this review article, we present the ten major and minor MRI features of placental adhesion disorder, as described in the international literature. In addition, we propose a template for structured reports of MRI examinations of the placenta. We have also devised a guided questionnaire in order to identify risk factors in patients scheduled to undergo such examinations, with the objective of facilitating the multidisciplinary treatment planning needed in order to minimize maternal morbidity and mortality.

https://doi.org/10.1590/0100-3984.2019.0037 2334 downloads

Nasal Polyposis: More than a Chronic Inflammatory Disorder-A Disease of Mechanical Dysfunction- The São Paulo Position
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Pezato, Rogerio

; Voegels, Richard Louis

; Pignatari, Shirley

; Gregório, Luiz Carlos

; Bezerra, Thiago Freire Pinto

; Gregorio, Luciano

; Balsalobre, Leonardo

; Tepedino, Miguel Soares

; Coronel, Nathália

; Pinna, Fabio de Rezende

; Mendes Neto, José

; Oliveira, Pedro

; Macoto, Eduardo

; Stefanini, Renato

; Figueiredo, Claudia

; Haddad, Fernanda

; Pilan, Renata

; Soter, Ana Bezerra

; Melo, Nelson Almeida

; Candido, Danilo Almeida

; Amaral, Jonatas do

; Santos, Rodrigo de Paula

; Zele, Thibaut Van

; Fujita, Reginaldo

; Dreyfuss, Juliana L.

; Chamon, Wallace

; Alencar, Adriano Mesquita

; Perez-Novo, Claudina

; Stamm, Aldo Cassol

International Archives of Otorhinolaryngology

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jun 2019, Volume 23 N. 2 Pages 241 - 249

Abstract: En | Text: En | PDF: En

Abstract Introduction The importance of our study lies in the fact that we have demonstrated the occurrence ofmechanical dysfunction within polypoid tissues, which promotes the development of polyps in the nasal cavity. Objective To change the paradigm of nasal polyposis (NP). In this new conception, the chronic nasal inflammatory process that occurs in response to allergies, to pollution, to changes in the epithelial barrier, or to other factors is merely the trigger of the development of the disease in individuals with a genetic predisposition to an abnormal tissue remodeling process, which leads to a derangement of the mechanical properties of the nasal mucosa and, consequently, allows it to grow unchecked. Data Synthesis We propose a fundamentally new approach to intervening in the pathological process of NP, addressing biomechanical properties, fluid dynamics, and the concept of surface tension. Conclusion The incorporation of biomechanical knowledge into our understanding of NP provides a new perspective to help elucidate the physiology and the pathology of nasal polyps, and new avenues for the treatment and cure of NP.

https://doi.org/10.1055/s-0038-1676659 601 downloads

Environmental impacts of public policies in Campo Grande, MS: the case of Lajeado stream environmental protection area
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Figueiredo, Helder Pereira de

; Constantino, Michel Ângelo

; Sanches, Cristiane Camargo

; Costa, Reginaldo Brito da

Interações (Campo Grande)

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dec 2016, Volume 17 N. 4 Pages 713 - 728

Resumo: A agenda pós-2015 da ONU tem como foco o meio ambiente na definição dos Objetivos de Desenvolvimento Sustentável (ODS). Este estudo tem como objetivo analisar quais as externalidades positivas e negativas geradas pelas políticas públicas de âmbito ambiental entre 2000 a 2015 na Área de Proteção Ambiental (APA) da região do Lajeado em Campo Grande, MS, a partir de registros fotográficos e imagens de satélite e pesquisa direta com beneficiários.

Abstract: The post-agenda 2015 of the United Nations has focused on the environment based on the definition of Sustainable Development Goals (SDGs). This study aims to analyse which were the positive and negative externalities generated by public policies in the environmental scope between 2000 and 2015 in the Environmental Protection Area (EPA) of the Lageado area in Campo Grande, MS, from photographic records, satellite images and direct survey with beneficiaries.

Resumen: La agenda post-2015 de las Naciones Unidas se centra en el medio ambiente en la definición de los Objetivos de Desarrollo Sostenible (ODS). Este estudio tiene como objetivo analizar los factores externos positivos y negativos previstos generados por las políticas públicas de marco ambiental entre 2000 a 2015 en el Área de Protección Ambiental de la región Lajeado en Campo Grande, MS, a partir de los registros fotográficos y las imágenes de satélite y la encuesta directa de los beneficiarios.

Résumé: L'agenda post-2015 des Nations Unies met l'accent sur l'environnement dans la définition des Objectifs de Développement Durable (ODD). Cette étude vise à analyser les externalités positives et négatives attendues générées par les politiques publiques pour cadre environnemental entre 2000-2015 dans la Zone de Protection de l'Environnement (ZPE) de la région Lajeado à Campo Grande, MS, à partir de documents photographiques et des images satellite et enquête directe auprès des bénéficiaires.

https://doi.org/10.20435/1984-042x-2016-v.17-n.4(13) 1014 downloads

PREVALENCE OF AMERICAN TRYPANOSOMIASIS AND LEISHMANIASES IN DOMESTIC DOGS IN A RURAL AREA OF THE MUNICIPALITY OF SÃO JOÃO DO PIAUÍ, PIAUÍ STATE, BRAZIL
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PEREZ, Taliha Dias

; FIGUEIREDO, Fabiano Borges

; JUNIOR, Artur Augusto Mendes VELHO

; SILVA, Valmir Laurentino

; MADEIRA, Maria de Fátima

; BRAZIL, Reginaldo Peçanha

; COURA, José Rodrigues

Revista do Instituto de Medicina Tropical de São Paulo

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2016, Volume 58 elocation 79

Abstract: En | Text: En | PDF: En

SUMMARY Chagas disease and the leishmaniases are endemic zoonoses of great importance to public health in the state of Piauí, Brazil. The domestic dog (Canis familiaris) is a major reservoir, host of Trypanosoma cruzi and Leishmania spp. in both urban and rural areas, playing an important role in the transmission of these parasites. The present study evaluated the prevalence of both infectious diseases in dogs of a rural area in the municipality of São João do Piauí, Piauí State. One hundred twenty-nine blood samples were collected for serological assessment: for the leishmaniases, 49 (38%) animals tested positive by the Dual-Path Platform technology (DPP), nine (6%) by the Enzyme-linked Immunosorbent Assay (ELISA), and 19 (14.7%) by the Indirect Fluorescent Antibody test (IFA); while for American Trypanosomiasis, 36 (28%) dogs were reagent by ELISA and 21 by IFA. Of the 129 dogs sampled, 76 were submitted to xenodiagnosis, bone marrow aspiration and skin biopsy to perform parasitological tests whose results showed only one (2.3%) positive skin sample for Trypanosoma caninum and one positive xenodiagnosis for T. cruzi, both results confirmed by molecular assays. Three hundred triatomines of the species Triatoma brasiliensis and 552 phlebotomines - 509 (97%) of the species Lutzomyia longipalpis, were also captured.

https://doi.org/10.1590/S1678-9946201658079 1364 downloads

Melorheostosis
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Franca, Paulo Marcus Vianna

; Ferrreira, Cid Sérgio

; Figueiredo, Reginaldo

; Matushita, João Paulo Kawaoka

Radiologia Brasileira

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feb 2015, Volume 48 N. 1 Pages 61 - 62

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.1590/0100-3984.2013.0019 4543 downloads

10.

Credit analysis using data mining: application in the case of a credit union
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Sousa, Marcos de Moraes

; Figueiredo, Reginaldo Santana

JISTEM - Journal of Information Systems and Technology Management

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aug 2014, Volume 11 N. 2 Pages 379 - 396

Abstract: En | Text: En | PDF: En

The search for efficiency in the cooperative credit sector has led cooperatives to adopt new technology and managerial knowhow. Among the tools that facilitate efficiency, data mining has stood out in recent years as a sophisticated methodology to search for knowledge that is “hidden” in organizations' databases. The process of granting credit is one of the central functions of a credit union; therefore, the use of instruments that support that process is desirable and may become a key factor in credit management. The steps undertaken by the present case study to perform the knowledge discovery process were data selection, data pre-processing and cleanup, data transformation, data mining, and the interpretation and evaluation of results. The results were evaluated through cross-validation of ten sets, repeated in ten simulations. The goal of this study is to develop models to analyze the capacity of a credit union's members to settle their commitments, using a decision tree—C4.5 algorithm and an artificial neural network—multilayer perceptron algorithm. It is concluded that for the problem at hand, the models have statistically similar results and may aid in a cooperative's decision-making process.

https://doi.org/10.4301/S1807-17752014000200009 40692 downloads

11.

Correlation between Bhalla score and spirometry in children and adolescents with Cystic Fibrosis
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Pereira, Flavia Fajardo Linhares

; Ibiapina, Cassio da Cunha

; Alvim, Cristina Gonçalves

; Camargos, Paulo Augusto Moreira

; Figueiredo, Reginaldo

; Pedrosa, Jesiana Ferreira

Revista da Associação Médica Brasileira

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jun 2014, Volume 60 N. 3 Pages 216 - 221

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Objetivo: correlacionar os achados da tomografia computadorizada de alta resolução (TCAR) do tórax, com base no escore de Bhalla, com os dados clínicos e a espirometria em crianças e adolescentes com fibrose cística (FC), além de estudar a concordância entre dois médicos radiologistas para o escore de Bhalla e suas categorias. Métodos: foram avaliados os prontuários e os exames de 23 pacientes do ambulatório. Os itens avaliados foram idade, peso, altura, escore Z altura/idade, escore Z peso/ idade, índice de massa corpórea (IMC), saturação de O2, espirometria e escore de Bhalla. Resultados: os pacientes avaliados tinham média de idade de 17,4±5,7 anos, sendo 15 do sexo feminino e 8 do sexo masculino. Houve boa correlação entre o escore de Bhalla e a espirometria (CVF-r = 0,718, p < 0,001; VEF1-r = 0,830, p < 0,001; FEF 25-75%-r = 0,786, p < 0,001; VEF1/ CVF-r = 0,714, p < 0,001). Nota-se, ainda, que alguns pacientes com FEF 25-75% > 70% já apresentavam alterações na nota final do escore de Bhalla. Na análise da concordância entre os examinadores, foi encontrado coeficiente kappa de 0,81 (p < 0,001) e coeficiente de correlação intraclasse de 0,98. Conclusão: a boa correlação do escore de Bhalla com as provas de função pulmonar confirma a sua utilidade na avaliação e no acompanhamento dos pacientes com FC, podendo ser utilizado tanto para pacientes que são incapazes de realizar a espirometria quanto para uma análise em conjunto dos dois exames, uma vez que a TCAR mostra alterações precoces em pacientes com espirometrias normais.

Objective: to correlate the findings of high resolution computed tomography of the chest based on the Bhalla score with the clinical data and spirometry in children and adolescents with cystic fibrosis, and to study the concordance between two radiologists for the Bhalla score and its categories. Methods: we evaluated the medical records of 23 patients from the outpatient clinic. The items evaluated included age, weight, height, height/age Z-score, weight/age Z-score, body mass index (BMI), O2 saturation, spirometry and Bhalla score. Results: the patients had a mean age of 17.4 years ± 5.7 years, with fifteen females and eight males. There was good correlation between Bhalla score and spirometry (FVC-r =0.718, p<0.001; FEV1-r=0.830, p<0.001; FEF25-75%-r =0.786, p<0.001; FEV1/FVC-r=0.714, p<0.001). It was also noted that some patients with FEF25-75%> 70% already had changes in their final Bhalla score. In the analysis of the concordance between the examiners a Kappa coefficient of 0.81 (p <0.001) was found, and an intraclass correlation coefficient of 0.98. Conclusion: a good correlation between Bhalla scores with spirometry confirmed its usefulness in evaluating and monitoring patients with cystic fibrosis, given it can be used both in patients who are unable to perform spirometry as well as for a pooled analysis of the two examinations since the HRCT scans show early changes in patients with normal function tests.

https://doi.org/10.1590/1806-9282.60.03.009 2904 downloads

12.

Fadiga óssea: causa de dor em joelhos na osteoartrite
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Tavares Júnior, Wilson Campos

; Faria, Fernando Meira de

; Figueiredo, Reginaldo

; Matushita, João Paulo Kawaoka

; Silva, Luciana Costa

; Kakehasi, Adriana Maria

Radiologia Brasileira

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oct 2012, Volume 45 N. 5 Pages 273 - 278

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

A dor no joelho é o sintoma mais comum na osteoartrite, sendo a principal causa de incapacidade crônica em idosos e uma das principais fontes de morbidade atribuível à osteoartrite em geral. As causas de dor no joelho em pessoas com osteoartrite não são facilmente entendidas e o conhecimento sobre as causas da dor é fundamental para que futuramente sejam realizadas intervenções específicas. A fadiga óssea representa o remodelamento do osso subcondral na osteoartrite, levando a uma consequente alteração na forma do osso e/ou perda óssea. No entanto, a fadiga óssea não é algo facilmente interpretado, pois é de difícil detecção na ausência de defeitos claros da cortical e pela sobreposição de estruturas ósseas nas radiografias convencionais. A fadiga óssea está associada não apenas a dor no joelho, mas também a rigidez e incapacidade. Se a fadiga ocorre antes da osteoartrite avançada, isso sugere que alterações no osso subcondral podem ocorrer simultaneamente a alterações da cartilagem e que tratamentos visando sua preservação podem não ser eficazes. Lesões com padrão de edema ósseo estão associadas e são fatores preditivos para fadiga óssea. Este trabalho tem por objetivo rever a literatura mostrando a importância da fadiga óssea e de como diagnosticar esta alteração nos exames de imagem.

Knee pain is the most frequent symptom in osteoarthritis, a condition that is the leading cause of chronic disability in the elderly and one of the main sources of morbidity attributable to osteoarthritis in general. The causes of knee pain in individuals with osteoarthritis cannot be easily understood, and the knowledge of such causes is critical for determining future specific interventions. Bone attrition represents remodelling of the subchondral bone envelope in osteoarthritis, leading to a consequential change in bone shape and/or bone loss. However, bone attrition is not a feature that can be easily read, since it is hardly detected in the absence of clear defects of cortical bone integrity and because of overlap of bone structures at radiography. Bone attrition is associated not only with knee pain, but also with stiffness and disability. If attrition occurs prior to advanced osteoarthritis, this would suggest that changes in subchondral bone occur concurrently with cartilage loss and that treatments targeting cartilage loss alone are unlikely to be effective. Association with edema-like bone marrow lesions may be observed and constitute predictive factors for subchondral bone attrition. The present study was aimed at reviewing the literature, demonstrating the relevance of bone attrition and explaining how to diagnose this entity on imaging studies.

26096 downloads

13.

Avaliação Preliminar da Qualidade da Madeira de Tectona grandis L. f. Através da Tomografia de Impulso L f
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Amodei, Juliana Bernardo

; Oliveira, Bruna Roque Ugulino de

; Gurgel, Monique de Moura

; Carvalho, Alexandre Monteiro de

; Medeiros, Reginaldo Antônio

; Latorraca, João Vicente de Figueiredo

Floresta e Ambiente

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dec 2010, Volume 17 N. 2 Pages 124 - 128

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO A análise tomográfica de impulso é um método não destrutivo que permite analisar o interior do lenho de árvores pela passagem de ondas mecânicas, tornando possível realizar uma avaliação prévia e detectar a presença de defeitos na madeira. Utilizou-se o tomógrafo de impulso ARBOTOM para analisar o lenho de árvores de Tectona grandis, localizadas em Cáceres, MT. Os resultados possibilitaram detectar a presença de zonas distintas no lenho através da variação da velocidade de ondas mecânicas indicada por variadas zonas de cores reveladas na imagem tomográfica. Possivelmente, essas diferenças de cores são atribuídas às variações da densidade e umidade da madeira. madeira Utilizouse Utilizou se grandis Cáceres MT Possivelmente

ABSTRACT Impulse tomography analysis is a non-destructive method that enables the visualization of the interior of the wood of trees through the passage of mechanical waves, making it possible to perform a preliminary examination and notice the presence of defects in the wood. ARBOTOM impulse tomography was used to analyze the wood of trees of Tectona grandis, located in Caceres, State of Mato Grosso, Brazil. It was possible to detect the presence of distinct zones in the wood by varying the speed of the wave mechanics indicated by different colored areas in tomography image. Possibly, these color differences are attributed to variations in wood density and moisture content. nondestructive non destructive waves grandis Caceres Grosso Brazil image Possibly content

https://doi.org/10.4322/floram.2011.016

14.

Rabdomiosarcoma de cabeça e pescoço na infância
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Neves, Beatrice Mª J.

; Pontes, Paulo A. de L.

; Caran, Eliana M.

; Figueiredo, Claudia

; Weckx, Luc L.M.

; Fujita, Reginaldo R.

Revista Brasileira de Otorrinolaringologia

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jan 2003, Volume 69 N. 1 Pages 24 - 28

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Rabdomiosarcoma é uma neoplasia maligna originária de células mesenquimais primitivas, podendo ocorrer em qualquer lugar do corpo. É o sarcoma de partes moles mais comum na infância, e localiza-se mais freqüentemente na cabeça e pescoço. OBJETIVO: Estudar a ocorrência de RMS na cabeça e pescoço na infância, correlacionando aspectos clínicos e histopatológicos. FORMA DE ESTUDO: Clínico retrospectivo. MÉTODO: Oitenta e dois pacientes com diagnóstico de sarcomas de partes moles, atendidos no Instituto de Oncopediatria da UNIFESP-EPM de 1988 a 2002 foram incluídos neste estudo. Foram estudados os seguintes parâmetros: incidência de RMS na infância e na cabeça e pescoço, distribuição segundo sexo, faixa etária, tipo histológico, localização primária, óbito X localização, causa mortis. RESULTADOS: Neste estudo 65% dos casos de sarcomas de partes moles corresponderam à RMS; 33% dos casos de RMS localizavam-se na cabeça e pescoço; 77% dos casos de sarcoma de partes moles de cabeça e pescoço corresponderam ao RMS. A média de idade no diagnóstico foi de 7,62 anos, predominando na faixa etária dos 5 aos 9 anos (41%). Em relação ao sexo, encontramos 47% do sexo feminino e 53% do sexo masculino. Quanto ao tipo histológico, o mais comum foi o RMS embrionário correspondendo a 64,6% do total. O sítio primário mais comum foi o orbital (52,8%). Cem por cento, 50% e 33,3% dos pacientes com RMS parameníngeo, não parameníngeo e orbital, respectivamente, evoluíram para óbito. CONCLUSÃO: O RMS é o sarcoma de partes moles mais comum na infância, localizando-se preferencialmente na cabeça e pescoço. Houve predominância do sexo masculino neste estudo; idade média de 7,62 anos predominando a faixa etária dos 5 aos 9 anos. O tipo histológico predominante foi o embrionário e a localização orbital foi mais freqüente. O maior índice de óbito pertenceu aos RMS parameníngeo e o menor ao orbital.

Rhabdomyosarcoma (RMS) is a malignant tumor of immature mesenchymal cells; it can arise from any part of the body. RMS is the most common soft tissue sarcomain the childhood and its most frequent primary site is the head and neck. AIM: The purpose of this study was to review the occurrence of head and neck RMS in childhood and its clinical-histopathologic features. STUDY DESIGN: Clinical retrospective. METHOD: Eighty-two patients with soft tissue sarcoma treated in the Institute of Pediatric Oncology, UNIFESP-EPM, between 1988 and 2002 were included in this study. The medical records of the patients with head and neck soft tissue sarcomas were reviewed. The following parameters were analyzed: incidence of RMS in the childhood and in the head and neck, sex, age, histological classification, primary site, follow-up. RESULTS: In this study, 65% of soft tissue sarcomas were RMS; 33% of RMS were in the head and neck region; 77% of soft tissue sarcoma in this region were RMS. The mean age at diagnosis was 7.62 years, 41% were between 5 and 9 years. In this sample, there were 47% men and 53% women. Embryonic RMS was the predominant histological type (64.6%) and the orbit was the most common primary site (52.8%). One hundred percent, 50% and 33.3% of the parameningeal, nonparameningeal and orbital RMS, respectively, led to death. CONCLUSION: RMS is the most common soft tissue sarcoma in the childhood and the head and neck is the most frequent primary site. Males were more affected by RMS than females. The mean age at diagnosis was 7.62 years and the most frequent age interval was between 5 and 9 years old. The embryonic histological type and the orbit as primary site were predominant. The highest mortality was found for parameningeal RMS and the lowest, for orbital RMS.

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15.

Índices técnicos e rentabilidade da pecuária leiteira
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Oliveira, Terezinha Bezerra Albino

; Figueiredo, Reginaldo Santana

; Oliveira, Mauro Wagner de

; Nascif, Christiano

Scientia Agricola

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dec 2001, Volume 58 N. 4 Pages 687 - 692

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Avaliaram-se os resultados técnicos e econômicos em 22 propriedades leiteiras localizadas em dez municípios da Região de Viçosa, MG. Nas propriedades que apresentaram resultados econômicos negativos, detectaram-se os pontos de estrangulamento na produção e, tomando-se como referência os índices técnicos das propriedades que apresentaram taxa de retorno sobre o investimento superior ao da caderneta de poupança, foram propostas medidas para aumentar a eficiência dessas fazendas. A escala de produção foi considerada fator importante para obtenção de índices econômicos atrativos. A melhoria do padrão genético, através de inseminação artificial com sêmen de animais com maior potencial produtivo, contribuiu para elevar os índices de produtividade do rebanho, da terra e da mão-de-obra e, consequentemente os indicadores econômicos. A alimentação adequada, principalmente das vacas em lactação, foi muito importante para o sucesso da atividade. Investimento em qualidade do leite via controle sanitário do rebanho, ordenha mecanizada e resfriamento logo após a ordenha, podem ser uma estratégia para obter ganhos em toda a cadeia produtiva.

Economic and technical results of a study involving 22 dairy farms in 10 municipalities of Viçosa, MG, Brazil, were evaluated. In the properties that presented negative economic results, problems were detected in the production phase. Technical indexes of the properties that presented a return rate higher than that of savings investment were taken as reference, and measures were proposed to increase the efficiency of the other farms. The scale of production is of the utmost importance to enhance dairy farm interest. Genetic standard improvement by means of artificial insemination with semen of animals with high productive potential has contributed to raise the productivity indexes of the herd, land and labor and, consequently, the economic indexes. Food and animal environment were relevant factors for the activity success. Increased milk quality via mechanized milking immediately followed by cooling has generated gains throughout the whole productive process.

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