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Resumen La temperatura del aire es un factor climático que afecta la incidencia del dengue, con efectos que varían según el tiempo y el territorio. Investigamos la relación entre la temperatura mínima del aire y la incidencia de la enfermedad en Minas Gerais, Brasil, y evaluamos la influencia de variables socioeconómicas y geográficas en esta relación. Se trata de un estudio de serie temporal cuyo análisis se realiza en tres etapas distintas: modelación mediante el uso de distributed lag non-linear model (modelos distributivos no lineales con retraso), metaanálisis de los modelos obtenidos y metarregresión con datos geográficos y socioeconómicos. La temperatura mínima fue un factor de protección ante temperaturas extremadamente frías (RR = 0,65; IC95%: 0,56-0,76) y moderadas (RR = 0,71; IC95%: 0,64-0,79) y factor de riesgo en temperaturas de calor moderado (RR = 1,15; IC95%: 1,07-1,24), pero no en extremo (RR = 1,1; IC95%: 0,99-1,22). La heterogeneidad de los modelos fue alta (I2 = 60%), y esta medida no se modificó en la metarregresión. Las temperaturas frías moderadas y extremas tienen un efecto protector, mientras que las temperaturas moderadamente altas aumentan el riesgo. Sin embargo, la temperatura mínima del aire no explica la variabilidad de la región, ni siquiera con las demás variables en metarregresión.

Resumo A temperatura do ar é um fator climático que afeta a incidência da dengue, com efeitos variando conforme o tempo e o espaço. Investigamos a relação entre a temperatura mínima do ar e a incidência da doença em Minas Gerais, Brasil, e avaliamos a influência de variáveis socioeconômicas e geográficas nessa relação, calculando-se o risco relativo (RR). Este é um estudo de série temporal com análise conduzida em três etapas distintas: modelagem por uso de distributed lag non-linear model (modelos não-lineares distributivos com defasagem), metanálise dos modelos obtidos e metarregressão com dados geográficos e socioeconômicos. A temperatura mínima foi um fator de proteção quando em temperaturas frias extremas (RR = 0,65; IC95%: 0,56-0,76) e moderadas (RR = 0,71; IC95%: 0,64-0,79) e fator de risco em temperaturas de calor moderado (RR = 1,15; IC95%: 1,07-1,24), mas não em extremo (RR = 1,1; IC95%: 0,99-1,22). A heterogeneidade dos modelos foi elevada (I2 = 60%) e essa medida não foi alterada em metarregressão. Temperaturas frias moderadas e extremas causam efeito protetivo, enquanto moderadas quentes aumentam o risco. No entanto, a temperatura mínima do ar não explica nem a variabilidade da região, nem mesmo com as outras variáveis em metarregressão.

Abstract Air temperature is a climatic factor that affects the incidence of dengue, with effects varying according to time and space. We investigated the relationship between minimum air temperature and dengue incidence in Minas Gerais, Brazil, and evaluated the influence of socioeconomic and geographic variables on this relationship. This is a time series study with analysis conducted in three distinct stages: modeling using a distributed lag non-linear model, meta-analysis of models obtained, and meta-regression with geographic and socioeconomic data. Minimum temperature was a protective factor at extreme cold temperatures (RR = 0.65; 95%CI: 0.56-0.76) and moderate cold temperatures (RR = 0.71; 95%CI: 0.64-0.79), and a risk factor at moderate hot temperatures (RR = 1.15; 95%CI: 1.07-1.24), but not at extreme hot temperatures (RR = 1.1; 95%CI: 0.99-1.22). Heterogeneity of the models was high (I2 = 60%), which was also observed in meta-regression. Moderate and extreme cold temperatures have a protective effect, while moderate hot temperatures increase the risk. However, minimum air temperature does not explain the variability in the region, not even with the other variables in meta-regression.

https://doi.org/10.1590/0102-311xpt076723

Effects of air temperature on the risk of death from COPD in major microregions in Brazil: a time series study
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Ribas, Igor Magaton

; Gomes, João Pedro Medeiros

; Valadares, Pedro Augusto Rosa

; Jardim, Lucas Santos

; Nogueira, Mário Círio

; Ferreira, Cássia de Castro Martins

; Farias, William Cossich Marcial de

; Ferreira, Letícia de Castro Martins

Jornal Brasileiro de Pneumologia

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2023, Volume 49 N. 5 elocation e20220442

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

ABSTRACT Objective: To evaluate the association between the risk of death from COPD and air temperature events in ten major Brazilian microregions. Methods: This was a time series analysis of daily COPD deaths and daily mean air temperatures between 1996 and 2017. Using distributed nonlinear lag models, we estimated the cumulative relative risks of COPD mortality for four temperature percentiles (representing moderate and extreme cold and heat events) in relation to a minimum mortality temperature, with a lag of 21 days, in each microregion. Results: Significant associations were found between extreme air temperature events and the risk of death from COPD in the southern and southeastern microregions in Brazil. There was an association of extreme cold and an increased mortality risk in the following microregions: 36% (95% CI, 1.12-1.65), in Porto Alegre; 27% (95% CI, 1.03-1.58), in Curitiba; and 34% (95% CI, 1.19-1.52), in São Paulo; whereas moderate cold was associated with an increased risk of 20% (95% CI, 1.01-1.41), 33% (95% CI, 1.09-1.62), and 24% (95% CI, 1.12-1.38) in the same microregions, respectively. There was an increased COPD mortality risk in the São Paulo and Rio de Janeiro microregions: 17% (95% CI, 1.05-1.31) and 12% (95% CI, 1,02-1,23), respectively, due to moderate heat, and 23% (95% CI, 1,09-1,38) and 32% (95% CI, 1,15-1,50) due to extreme heat. Conclusions: Non-optimal air temperature events were associated with an increased risk of death from COPD in tropical and subtropical areas of Brazil.

RESUMO Objetivo: Avaliar a associação entre o risco de morte por DPOC e eventos de temperatura do ar em dez grandes microrregiões brasileiras. Métodos: Esta foi uma análise de série temporal de mortes diárias por DPOC e temperaturas médias diárias do ar entre 1996 e 2017. Utilizando modelos de defasagem não linear distribuídos, estimamos os riscos relativos cumulativos de mortalidade por DPOC para quatro percentis de temperatura (representando eventos moderados e extremos de frio e calor) em relação a uma temperatura mínima de mortalidade, com defasagem de 21 dias, em cada microrregião. Resultados: Foram encontradas associações significativas entre eventos extremos de temperatura do ar e o risco de morte por DPOC nas microrregiões Sul e Sudeste do Brasil. Houve associação de frio extremo e aumento do risco de mortalidade nas seguintes microrregiões: 36% (IC 95%, 1,12-1,65), em Porto Alegre; 27% (IC 95%, 1,03-1,58), em Curitiba; e 34% (IC 95%, 1,19-1,52), em São Paulo; enquanto o frio moderado foi associado a um risco aumentado de 20% (IC 95%, 1,01-1,41), 33% (IC 95%, 1,09-1,62) e 24% (IC 95%, 1,12-1,38) nas mesmas microrregiões, respectivamente. Houve aumento do risco de mortalidade por DPOC nas microrregiões de São Paulo e Rio de Janeiro: 17% (IC 95%, 1,05-1,31) e 12% (IC 95%, 1,02-1,23), respectivamente, devido ao calor moderado e 23% (IC 95%, 1,09-1,38) e 32% (IC 95%, 1,15-1,50) devido ao calor extremo. Conclusões: Eventos de temperatura do ar não ideal foram associados a um risco aumentado de morte por DPOC em áreas tropicais e subtropicais do Brasil.

https://doi.org/10.36416/1806-3756/e20220442

Autonomic dysfunction is common in liver cirrhosis and is associated with cardiac dysfunction and mortality: prospective observational study
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Pimentel, Carolina Frade Magalhães Girardin

; Salvadori, Ricardo

; Feldner, Ana Cristina de Castro Amaral

; Aguiar, Miguel Osman de

; Gonzalez, Adriano Miziara

; Branco, Gabriel Ribas

; Superbia, Marcel

; Lai, Michelle

; Mota, Daniel de Oliveira

; Ferraz, Maria Lucia Cardoso Gomes

; Mathias, Wilson

; Kondo, Mario

Sao Paulo Medical Journal

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feb 2022, Volume 140 N. 1 Pages 71 - 80

Abstract: En | Text: En | PDF: En

ABSTRACT BACKGROUND: Although autonomic dysfunction has been shown to be associated with liver cirrhosis, the prevalence and prognostic implications are unclear. Abnormal heart rate variability (HRV), a measure of autonomic function, has not been well investigated in cirrhosis. OBJECTIVE: To evaluate the prevalence of high-risk HRV parameters in a cohort of cirrhotic patients and their association with cardiac dysfunction and mortality. DESIGN AND SETTING: Prospective observational study conducted in the Federal University of São Paulo. METHOD: A cohort of 120 patients, comprising 17 healthy controls and 103 cirrhotic outpatients, was evaluated and followed for 10 months. HRV analysis was based on 24-hour Holter monitoring and defined using time-domain and frequency-domain parameters. RESULTS: The HRV parameters were statistically lower in cirrhotic patients than in healthy subjects. High-risk HRV parameters were prevalent, such that 64% had at least one high-risk parameter. Time-domain parameters correlated with Child scores (P < 0.0001). In regression models, HRV parameters were independent predictors of diastolic dysfunction and mortality. During 10 months of follow-up, there were 11 deaths, all of patients with at least one high-risk HRV parameter. Kaplan-Meier analysis estimated low survival rates among patients with standard deviation of normal-to-normal RR intervals (SDNN) < 100. CONCLUSION: Reduced HRV is prevalent in liver cirrhosis and is related to cardiac dysfunction, severity of liver disease and mortality. Abnormal high-risk HRV parameters are prevalent among cirrhotic patients and are also predictors of mortality. Our findings highlight the need for a more careful cardiac evaluation of cirrhotic patients.

https://doi.org/10.1590/1516-3180.2021.0111.r1.18052021

Histological evaluation of capsules formed by texturized silicone implants with and without polyester mesh coverage (Parietex®). A study on female rats
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Berger, Ralf

; Ribas Filho, Jurandir Marcondes

; Malafaia, Osvaldo

; Nassif, Paulo Afonso Nunes

; Silva, Eduardo Nascimento

; Silva, Alfredo Benjamin Duarte da

; Takejima, Milka

; Souza, Marcelo Augusto de

; Paula, Pedro Henrique de

; Montemor Netto, Mário Rodrigues

; Noronha, Lucia de

Acta Cirúrgica Brasileira

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2021, Volume 36 N. 5 elocation e360505

Abstract: En | Text: En | PDF: En

ABSTRACT Purpose To evaluate capsules formed by microtextured silicone implants with and without Parietex® mesh coverage histologically. Methods Sixty Wistar rats were divided in two groups (meshed and unmeshed). Each group was, then, divided into two subgroups for evaluation at 30 and 90 days. Capsules were analyzed based on hematoxylin and eosin (HE) and picrosirius staining. Results The number of fibroblasts, neutrophils and macrophages was similar among all subgroups. There was a higher lymphocyte reaction in the 30-day meshed group (p = 0.003). Giant cell reaction, granulation tissue and neoangiogenesis were similar among the subgroups. Synovial metaplasia was milder at 90-day in the unmeshed (p = 0.002) and meshed group (p < 0.001). Capsular thickness was significantly greater in the meshed samples (30-day p < 0.001 and 90-day p < 0.001). There was a similar amount of collagen types I and III in both groups. Conclusions The mesh-covered implants produced capsules similar to the microtextured ones when analyzing inflammatory variables. Synovial metaplasia was milder at 90 than at 30 days, and the capsular thickness was significantly greater in the meshed group. A similar amount of collagen types I and III was observed. Due to these characteristics, the mesh coverage did not seem to significantly affect the local inflammatory activity.

https://doi.org/10.1590/acb360505 197 downloads

REPENSANDO OS LETRAMENTOS PELA PERSPECTIVA PÓS-HUMANISTA
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Ribas, Mario Marcio Godoy

Trabalhos em Linguística Aplicada

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aug 2019, Volume 58 N. 2 Pages 612 - 636

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

RESUMO O pós-humanismo não apenas convida a repensar a unidade básica de referência para o ser humano e as ciências humanas, como expande o conceito de (prática) social para abranger os seres humanos e os agentes não-humanos interagindo socialmente de forma mais horizontal e simétrica. A pesquisa sobre letramentos, diante dessa nova forma de olhar para o mundo, exige uma nova proposta teórica que supere binarismos usuais nesse campo de estudo tais como digital/analógico e múltiplos/único, entre outros. Portanto, este trabalho objetiva propor uma reflexão sobre o conceito de letramentos como práticas sociais sob uma perspectiva pós-humanista, considerando novas ideias vigentes na literatura sobre pós-humanismo, agência, cognição e subjetividade. Utiliza-se como método a pesquisa bibliográfica, tendo como principais referenciais os trabalhos da filósofa Rosi Braidotti sobre o pós-humanismo crítico, da crítica literária Nancy Hayles sobre a condição pós-humana, da física e teórica feminista Karen Barad acerca do realismo agencial e do linguista aplicado Alastair Pennycook acerca especificamente de sua proposta de uma linguística aplicada pós-humanista. O resultado dessa reflexão teórica indica que uma concepção pós-humanista de letramentos demanda que essas práticas sejam entendidas como práticas materiais-discursivas, isto é, práticas em que matéria e discurso emergem conjuntamente por intra-ação, o que implica um outro olhar para o que seriam os contextos, os sujeitos e os objetos dos letramentos. Por consequência, é também necessário considerar que os significados constitutivos dos letramentos não são isolados em unidades como palavras ou ideias de significantes, mas sim na rede material-discursiva construída por intra-ação.

ABSTRACT Posthumanism not only invites us to rethink the basic unit of reference for the human being and the human sciences, but also expands the concept of social (practice) to encompass human beings and nonhuman agents, interacting socially in a more horizontal and symmetrical way. The research on literacy, in this new way of looking at the world, requires a new theoretical proposal that surpasses usual binarisms in this field of study such as digital/analog and multiple/single, among others. Therefore, this paper aims to propose a reflection on the concept of literacies as social practices from a posthumanist perspective, considering new ideas in the posthumanism literature on agency, cognition and subjectivity. The methodology used in this paper is the bibliographic research and the main references are the works of the philosopher Rosi Braidotti on the critical posthumanism, the literary critic Nancy Hayles on the posthuman condition, the feminist theorist and theoretical physicist Karen Barad on the agential realism, and the applied linguist Alastair Pennycook specifically on his proposal of a posthumanist applied linguistics. The result of this theoretical reflection indicates that a posthumanist conception of literacies demands that these practices be understood as material-discursive practices, that is, practices in which matter and discourse emerge together by intra-action, implying another look at what the contexts, the subjects, and the objects of the literacies would be. Consequently, it is also necessary to consider that the constitutive meanings of the literacies are not isolated in units as words or ideas of signifiers, but in the material-discursive network constructed by intra-action.

https://doi.org/10.1590/010318135504215822019 1178 downloads

Tissue microarray technology and collagen evaluation to analyze surgical trauma performed with usual blade or ultrasonic harmonic scalpels in rats
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Costa-Filho, Octavio Antonio Azevedo da

; Costa, Mario Augusto Cray da

; Waaga-Gasser, Ana Maria

; Kubrusly, Luiz Fernando

; Oliveira, Luciane Bugmann Moreira de

; Collaço, Luiz Martins

; Magalhães, Maria Angélica Baron

; Gasser, Martin

; Malafaia, Osvaldo

; Ribas-Filho, Jurandir Marcondes

Acta Cirúrgica Brasileira

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sep 2018, Volume 33 N. 9 Pages 762 - 774

Abstract: En | Text: En | PDF: En

Abstract Purpose: To compare wound healing performed with cold blade (CSB) and ultrasonic harmonic scalpel (UHS) in the abdominal aponeurosis of rats. Methods: Eighty Wistar rats divided into two groups and underwent midline incision in the linea alba with cold blade and harmonic ultrasonic scalpel. Analysis were performed in subgroups of 10 animals after 3, 7, 14 and 21 days. Macroscopically was observed the presence of hematoma, infection, wound dehiscence, fistula and adherences. Microscopically were used collagen and immunohistochemical staining methods. Results: Macroscopic, complications showed no statistical difference. Immunohistochemical analysis for MMP-9 was more intense in UHS group (p<0.05). TGF β presented its lower expression in UHS group at 14 and 21 days, with no statistical difference at 3 and 7 days (p<0.05). α-AML expression appeared higher in UHS group after 14 days and remained similar in others (p<0.05). Collagen deposition had no change in type I, and increased in type III in UHS; at 7th day the deposition was higher in CSB group; at 14th was similar in both groups (p<0.001). Conclusion: UHS compared to the CSB has higher lesion area at the time of the incision; as well as it led to the delay of regeneration and scar maturation process.

https://doi.org/10.1590/s0102-865020180090000004 913 downloads

Brazilian legislation on genetic heritage harms Biodiversity Convention goals and threatens basic biology research and education
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ALVES, RUY JOSÉ V.

; WEKSLER, MARCELO

; OLIVEIRA, JOÃO A.

; BUCKUP, PAULO A.

; POMBAL JR., JOSÉ P.

; SANTANA, HÉLCIO R.G.

; PERACCHI, ADRIANO LÚCIO

; KELLNER, ALEXANDER W.A.

; ALEIXO, ALEXANDRE

; LANGGUTH, ALFREDO

; ALMEIDA, ALZIRA MARIA P. DE

; ALBERNAZ, ANA LUISA

; RIBAS, CAMILA C.

; ZILBERBERG, CARLA

; GRELLE, CARLOS EDUARDO V.

; ROCHA, CARLOS F.D.

; LAMAS, CARLOS JOSÉ E.

; HADDAD, CÉLIO F.B.

; BONVICINO, CIBELE R.

; PRADO, CYNTHIA P.A.

; LIMA, DANIELA O. DE

; ROSSA-FERES, DENISE C.

; SANTOS, FABRÍCIO R. DOS

; SALIMENA, FÁTIMA REGINA G.

; PERINI, FERNANDO A.

; BOCKMANN, FLÁVIO A.

; FRANCO, FRANCISCO LUÍS

; GIUDICE, GISELE M.L. DEL

; COLLI, GUARINO R.

; VIEIRA, IMA CÉLIA G.

; MARINHO-FILHO, JADER

; WERNECK, JANE M.C.F.

; SANTOS, JORGE A.D. DOS

; NASCIMENTO, JORGE LUIZ DO

; NESSIMIAN, JORGE LUIZ

; CORDEIRO, JOSÉ LUIS P.

; CLARO, KLEBER DEL

; SALLES, LEANDRO O.

; CASATTI, LILIAN

; PY-DANIEL, LUCIA HELENA R.

; SILVEIRA, LUÍS FÁBIO

; TOLEDO, LUÍS FELIPE

; OLIVEIRA, LUIZ F. DE

; MALABARBA, LUIZ ROBERTO

; SILVA, MARCELO D. DA

; COURI, MÁRCIA S.

; MARTINS, MÁRCIO

; TAVARES, MARCOS D.S.

; SOBRAL, MARCOS EDUARDO G.

; VIEIRA, MARCUS VINÍCIUS

; OLIVEIRA, MARIA DE LOURDES A.

; PINNA, MÁRIO DE

; HOPKINS, MICHAEL J.G.

; SOLÉ, MIRCO

; MENEZES, NAÉRCIO A.

; PASSOS, PAULO

; D’ANDREA, PAULO SERGIO

; PINTO, PEDRO C.E.A.

; VIANA, PEDRO L.

; TOLEDO, PETER M.

; REIS, ROBERTO E.

; VILELA, ROBERTO

; BASTOS, ROGÉRIO P.

; COLLEVATTI, ROSANE G.

; CERQUEIRA, RUI

; CASTROVIEJO-FISHER, SANTIAGO

; CARAMASCHI, ULISSES

Anais da Academia Brasileira de Ciências

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apr 2018, Volume 90 N. 2 Pages 1279 - 1284

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0001-3765201820180460 7311 downloads

Histological evaluation of capsules formed by silicon implants coated with polyurethane foam and with a textured surface in rats
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Silva, Eduardo Nascimento

; Ribas-Filho, Jurandir Marcondes

; Czeczko, Nicolau Gregori

; Pachnicki, Jan Pawel Andrade

; Netto, Mário Rodrigues Montemor

; Lipinski, Leandro Cavalcante

; Noronha, Lucia de

; Colman, Joelmir

; Zeni, João Otavio

; Carvalho, Caroline Aragão de

Acta Cirúrgica Brasileira

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dec 2016, Volume 31 N. 12 Pages 774 - 782

Abstract: En | Text: En | PDF: En

ABSTRACT PURPOSE: To assess the capsules formed by silicone implants coated with polyurethane foam and with a textured surface. METHODS: Sixty-four Wistar albinus rats were divided into two groups of 32 each using polyurethane foam and textured surface. The capsules around the implants were analyzed for 30, 50, 70 and 90 days. Were analyzed the following parameters: foreign body reaction, granulation tissue, presence of myofibroblasts, neoangiogenesis, presence of synovial metaplasia, capsular thickness, total area and collagen percentage of type I and III, in capsules formed around silicone implants in both groups. RESULTS: The foreign body reaction was only present in the four polyurethane subgroups. The formation of granulation tissue and the presence of myofibroblasts were higher in the four polyurethane subgroups. Regarding to neoangiogenesis and synovial metaplasia, there was no statistical difference between the groups. Polyurethane group presented (all subgroups) a greater capsule thickness, a smaller total area and collagen percentage of type I and a higher percentage area of type III, with statistical difference. CONCLUSION: The use of polyurethane-coated implants should be stimulated by the long-term results in a more stable capsule and a lower incidence of capsular contracture, despite developing a more intense and delayed inflammatory reaction in relation to implants with textured surface.

https://doi.org/10.1590/s0102-865020160120000001 1818 downloads

Survival score scales of patients operated with spinal metastases: retrospective application in a Brazilian population
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Ribas, Eduardo Carvalhal

; Mathias Junior, Luis Roberto

; Guirado, Vinícius Monteiro

; Brock, Roger Schmidt

; Taricco, Mario Augusto

; Daniel, Mauro Miguel

; Lourenço, Rafael Burgomeister

; Teixeira, Manoel Jacobsen

Arquivos de Neuro-Psiquiatria

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jan 2016, Volume 74 N. 1 Pages 44 - 49

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

RESUMO Metástases vertebrais são uma complicação comum em pacientes com câncer sistêmico. Avaliar o prognóstico e a sobrevida desses pacientes é um fator de grande importância para escolher o tratamento mais adequado, porém as três escalas mais usadas atualmente para prever a sobrevida deles (Tokuhashi revisada, Tomita e Bauer modificada) foram desenhadas em instituições isoladas, e sua habilidade em estimar corretamente a sobrevida desses pacientes foram testadas primeiramente apenas nessas populações específicas. Essa questão de estimar o prognóstico é abordada nesse artigo, analisando retrospectivamente a sobrevida de 17 pacientes com metástase vertebral provenientes de um hospital geral no Brasil com essas escalas. Nossos resultados apontam que a sobrevida real desses pacientes foi menor que a prevista pelas três escalas, sugerindo que as diferenças entres as diferentes populações podem ter afetado a aplicabilidade delas. Assim, alertamos que o uso dessas escalas em populações diferentes das estudadas originalmente deve ser feito com cuidado.

ABSTRACT Spinal cord epidural metastasis (SEM) is a common complication of systemic cancer. Predicting these patient’s survival is a key factor to select the proper treatment modality, but the three most used score scales to predict their survival (Tokuhashi revised score, Tomita score and Bauer modified score) were designed in single institutions and their reliability to predict correctly the patient’s survival were first tested only in those specific populations. This prognostication issue is addressed in this article, evaluating retrospectively the survival of 17 patients with SEM from a Brazilian general hospital with these score scales. Our results show that the actual survival of those patients were worse than the predicted of all three score scales, suggesting that differences between the different populations might have affected their reliability and alert that their usage as a major factor to select the most appropriate treatment have to be done with caution.

https://doi.org/10.1590/0004-282X20150189 1417 downloads

10.

Pseudoaneurysm after arthroscopic procedure in the knee
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Stieven Filho, Edmar

; Isolani, Guilherme Rufini

; Baracho, Filipe Ribas

; Franco, Ana Paula Gebert de Oliveira

; Bauer, Luiz Antônio Ridder

; Namba, Mario

Revista Brasileira de Ortopedia

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apr 2015, Volume 50 N. 2 Pages 131 - 135

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

O objetivo deste estudo é revisar na literatura todos os casos de pseudoaneurisma em procedimentos predominantemente artroscópicos do joelho e relatar um caso de pseudoaneurisma tratado pelos autores. Foi feita uma pesquisa bibliográfica por meio de artigos científicos publicados em periódicos nacionais e internacionais nos últimos 23 anos. Foram levantados 47 casos, em 40 artigos. Somou-se aos 47 um caso dos autores deste estudo que foi incluído nos dados. Das cirurgias que cursaram com pseudoaneurisma, 60% se tratavam de lesões meniscais e 23% de lesões do ligamento cruzado anterior. Em 46% dos casos a artéria acometida foi poplítea e em 21% a artéria genicular inferomedial. O sintoma clínico mais comum foi dor (37%), seguido de tumor pulsátil (31%), edema de panturrilha (12%) e hemartrose (11%). A mediana do tempo para diagnóstico foi de 11 dias, mas variou de um dia até 10 semanas após o procedimento. Apesar de raro, o pseudoaneurisma é um risco inerente à cirurgia artroscópica. Todo paciente deve ser notificado dos riscos vasculares, mesmo em procedimentos de pequeno porte.

The aim of this study was to review all cases of pseudoaneurysm in the literature, in predominantly arthroscopic procedures on the knee, and to report on a case of pseudoaneurysm that we treated. A bibliographic search was conducted for scientific articles published in Brazilian and foreign periodicals over the last 23 years. Forty-seven cases were found, in 40 articles. In addition to these 47 cases, there was the case that we treated, which was also included in the data. Among the operations that progressed with formation of a pseudoaneurysm, 60% were cases of meniscal injuries and 23%, anterior cruciate ligament injuries. In 46% of the cases, the artery affected with the popliteal, and in 21%, the inferomedial genicular artery. The commonest clinical symptom was pain (37%), followed by pulsating tumor (31%), edema of the calf (12%) and hemarthrosis (11%). The median time taken to make the diagnosis was 11 days, but it ranged from one day to 10 weeks after the procedure. Although rare, pseudoaneurysms are a risk that is inherent to arthroscopic surgery. All patients should be made aware of the vascular risks, even in small-scale procedures.

https://doi.org/10.1016/j.rboe.2015.03.001 1972 downloads

11.

The pterional craniotomy: tips and tricks
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Chaddad-Neto, Feres

; Campos Filho, José Maria

; Dória-Netto, Hugo Leonardo

; Faria, Mario H.

; Ribas, Guilherme Carvalhal

; Oliveira, Evandro

Arquivos de Neuro-Psiquiatria

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sep 2012, Volume 70 N. 9 Pages 727 - 732

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

A presente revisão visou descrever de forma didática e prática a realização da craniotomia frontotemporoesfenoidal, usualmente denominada pterional, que constitui a craniotomia mais utilizada na prática neurocirúrgica atual. Trata-se, portanto, de um texto fundamentalmente descritivo, dividido conforme as principais etapas envolvidas na realização desse procedimento, que mostra com detalhes a técnica utilizada atualmente pelo presente grupo de autores.

This review intended to describe in a didactic and practical manner the frontotemporosphenoidal craniotomy, which is usually known as pterional craniotomy and constitute the cranial approach mostly utilized in the modern neurosurgery. This is, then, basically a descriptive text, divided according to the main stages involved in this procedure, and describes with details how the authors currently perform this craniotomy.

41276 downloads Cited 1 time in SciELO

12.

Anatomical study of the positioning of guide wires for the reconstruction of the two bands of the anterior cruciate ligament using transtibial technique
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Uliana, Christiano Saliba

; Moura, Marcio Fernando Aparecido de

; Namba, Mario

; Stieven-Filho, Edmar

; Ribas-Filho, Jurandir Marcondes

; Malafaia, Osvaldo

Acta Cirúrgica Brasileira

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may 2012, Volume 27 N. 5 Pages 283 - 288

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

OBJETIVOS: Determinar se é possível o posicionamento anatômico dos fios-guia para reconstrução das duas bandas do ligamento cruzado anterior pela técnica transtibial, sua dificuldade técnica e medir o posicionamento angular dos parâmetros anatômicos dos fios-guia tibiais para esta técnica. MÉTODOS: Dez joelhos de cadáveres foram dissecados e um fio guia foi posicionado no centro da origem e inserção de cada banda. Foram coletadas as medidas da distância do ponto de entrada do fio-guia à tuberosidade anterior da tíbia, a extremidade medial da tíbia e a superfície articular tibial. Também foram medidos os ângulos mediais e caudais dos fios-guia. RESULTADOS: Para a banda anteromedial o ângulo medial foi de 19±5º e o caudal de 44±4º. As distâncias foram de 20±2 mm da tuberosidade anterior, 26±5 mm do platô tibial e 25±5 mm da extremidade medial da tíbia. Para a banda posterolateral o ângulo medial foi de 26±5° e o caudal de 36±8°. As distâncias foram de 31±6 mm da tuberosidade anterior, 24±4 mm do platô tibial e 17±7 mm da extremidade medial da tíbia. CONCLUSÕES: É possível posicionar os fios-guia para reconstrução das duas bandas do ligamento cruzado anterior pela técnica transtibial. Os parâmetros para o posicionamento adequado do fio-guia da banda anteromedial são ângulo caudal de 44° com ponto de entrada a 20 mm da tuberosidade anterior; para a banda posterolateral o ângulo caudal é de 36° e a distância é de 31 mm da tuberosidade anterior da tíbia. Essa técnica é de difícil execução deixando sua reprodutibilidade questionável.

PURPOSE: To determine whether it is possible and the difficulty of anatomical placement of guide wires for reconstruction of the two bands of the anterior cruciate ligament using transtibial technique and to measure the angle and positioning of the anatomic tibial guide wires for this technique. METHODS: Ten cadaver knees were dissected and a guide wire was positioned in the center of origin and insertion of each band. Were collected measurements of the distance from: 1) the entry point of the guide wire on tibial tuberosity; 2) the medial end of the tibia; 3) the tibial articular surface. Were also measured the medial and caudal angles of the guide wires. RESULTS: For the anteromedial band the medial angle was 19±5º and the caudal was 44±4º.The distances were 20±2 mm from anterior tuberosity, 26±5 mm from the tibial plateau and 25±5 mm from the medial end of the tibia. For the posterolateral band the medial angle was 26±5º and the caudal one was 36±8°. The distances were 31±6 mm for the anterior tuberosity, 24±4 mm for the tibial plateau and 17±7 mm from the end of the tibia. CONCLUSIONS: It is possible to position the guide wires of the two bands to reconstruct the anterior cruciate ligament using transtibial technique. The parameters for the proper positioning of the guide wire from anteromedial band is caudal angle of 44º with entry point 20 mm from anterior tuberosity; for the posterolateral band the caudal angle is 36º; from the tibial tuberosity the distance is 31 mm. This technique is difficult to perform leaving its questionable reproducibility.

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13.

Retóricas ambivalentes: ressentimentos e negociações em contextos de sociabilidade juvenil na Cidade do Cabo (África do Sul)
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Moutinho, Laura

; Lopes, Pedro

; Zamboni, Marcio

; Ribas, Mario

; Salo, Elaine

Cadernos Pagu

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dec 2010, N. 35 Pages 139 - 176

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

O objetivo deste artigo é refletir sobre um conjunto de questões relativas ao racismo, à sexualidade e ao contato intercultural na África do Sul, mais especificamente em Cape Town. Esta cidade, que já foi reconhecida como democrática, com expressiva população coloured e gay friendly se apresenta atualmente como uma das mais desiguais da África do Sul pós- apartheid. Percorremos trajetórias de homens e mulheres homo e heterossexuais, de diferentes raças e regiões, no sentido de abrir a escuta para suas experiências, dar inteligibilidade a seus campos de negociação e qualificar formas ressemantizadas de exclusão. Objetiva-se analisar uma nova e relativamente recente sensibilidade social advinda com a "rainbow"nation" - a experiência de mistura em sua articulação com marcadores sociais da diferença.

The goal of this article is to reflect upon a series of questions concerning racism, sexuality and intercultural contact in South Africa and, specifically, Cape Town. The city, once acclaimed as democratic, with an expressive colored and gay-friendly population, has recently been (re)presented as one of the most unequal cities of post-apartheid South Africa. Here, we follow the life trajectories of some men and women, both homo- and heterosexual, of different races and regions, listening to their experiences in order to reveal their fields of negotiation and to thus qualify some re-signified forms of exclusion. Specifically, our objective is to analyze a new and relatively recent social sensibility arising within the "rainbow nation" (the experience of admixture in intersectionality with distinct social difference markers) that does not necessarily imply sexual-affective inter-racial dating.

4233 downloads Cited 7 times in SciELO

14.

Hemipelvectomia externa ampliada para tratar adenocarcinoma de sigmóide
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Reis, Rodrigo Ribas Dias dos

; Schiavinatto, Luciane

; Telles, Mário Luis

; Moreira, Adriana Eliza Brasil

; Mainardi, João Paulo Aguiar Jordão

Revista do Colégio Brasileiro de Cirurgiões

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oct 2010, Volume 37 N. 5 Pages 379 - 381

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

Surgery is the most effective way of treating a locally advanced colorectal carcinoma and an extended en bloc resection is necessary to achieve the best overall survival rate. In this rare case, a multi-visceral resection was performed along with the entire lower left limb and left iliac bone for a sigmoid carcinoma. The T4N0M0 (B3) tumor involved the left iliac vessels, left pelvic wall, small bowel and both rectus muscles, besides presenting with a skin fistula. A Hartmann colostomy was also performed. Chemotheraphy was interrupted because of toxicity. The patient is free of disease after 38 months. There are very few cases that describe an extended hemipelvectomy as part of a colorectal carcinoma treatment.

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15.

Análise biomecânica da solidarização de tendões para reconstrução do ligamento cruzado anterior
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Stieven Filho, Edmar

; Malafaia, Osvaldo

; Ribas-Filho, Jurandir Marcondes

; Diniz, Otaviano Esteves dos Santos

; Borges, Paulo César

; Albano, Mauro

; Kume, Márcio

; Silva, João Luiz Vieira da

; Namba, Mario

Revista do Colégio Brasileiro de Cirurgiões

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feb 2010, Volume 37 N. 1 Pages 052 - 057

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

OBJETIVO: Avaliar a diferença do comportamento mecânico de tendões flexores solidarizados e não solidarizados para verificar se a solidarização tem função efetiva. MÉTODOS: Vinte e quatro tendões digitais bovinos frescos foram usados. Para determinar a área da secção transversal utilizou-se alginato. Dez tendões foram solidarizados seguindo as orientações do fabricante; outros 10 pares não. Foram desenvolvidas garras para fixação dos enxertos à máquina universal para simulação da fixação, sendo a superior bipartida e de passagem controlada dos pinos e a inferior com dentes alternados. RESULTADOS: A carga máxima dos corpos de prova não solidarizados foi de 849,4 N ± 386,8 a área 30,4 mm²± 7,7, tensão de 29 ± 17 Mpa. Os solidarizados obtiveram carga máxima de 871,8 N ± 484,9 área 35 mm²± 5,8, tensão de 24 ± 10 Mpa. Não houve diferença estatística entre os dois grupos (p>0,05). CONCLUSÃO: A distribuição de probabilidade mostra que para 400 N os tendões não solidarizados apresentam confiabilidade de 83,8% e os solidarizados de 78,5%%.

OBJECTIVE:To evaluate the difference of the mechanical behavior of bended tied (sewed) and not tied hamstring tendons in order to evaluate if it has any effective function. METHODS: Twenty-four fresh bovine digital tendons had been used. Alginate to determine the area of the tendon transversal section was used. Ten bovine tendons had been bended and tied following the manufacturer orientation, ten others pairs had not been tied. Claws had been developed for the grafts fixation to the universal machine, for the setting simulation. The superior one was characterized to be bipartite and to have controlled passage for the pins and the inferior claw is characterized to have alternating teeth. RESULTS: The maximum load of the not tied samples of the test was 849,4 N ± 386,8 the area was 30,4 mm² ± 7,7, and 29 ± 17 Mpa of tension. The tied ones had gotten maximum load of 871,8 N ± 484,9, area of 35 mm² ± 5,8, and 24 ± 10 Mpa of tension. It did not have statistical difference between the two groups (p>0,05). CONCLUSION: The probability distribution showed that with 400 N the not tied tendons represents 83,8% of trustworthiness and the tied ones represents 78,5%.

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