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au:Pinto, Leonardo Mendes

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Obstetric and Perinatal Outcomes in Pregnant Women with Lupus: Retrospective Study in a Portuguese Tertiary Center
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Jorge, Inês Ferreira

; Frade, Joana Mourão Vieitez

; Capela, Susana Paula Leonardo Dias Abreu

; Graça, André Laboreiro Ferreira Mendes da

; Grilo, Maria Luísa Aleixo Gomes Pinto

; Centeno, Ana Mónica Miguel Mendonça de Castro

Revista Brasileira de Ginecologia e Obstetrícia

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2023, Volume 45 N. 10 Pages 568 - 574

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

Abstract Objective Pregnancy in women with lupus poses a higher risk of complications compared with the general population. The present study aimed to determine and describe the obstetric and neonatal outcomes of pregnant women with lupus. Materials and Methods We conducted an observational retrospective study of pregnant women with the diagnosis of lupus, who were selected and followed at the Maternal-Fetal Medicine Clinic of our institution between January 2013 and July 2018. We analyzed 59 pregnancies and 52 newborns, and collected data regarding sociodemographic features, the preconception period, pregnancy, childbirth, postpartum and the newborn. A descriptive analysis of the variables was performed. Results In 58% of the cases, the pregnancy was uneventful. We registered flares in 25% of the cases, preeclampsia in 3%, fetal growth restriction in 12%, gestational loss in 10%, preterm labor in 10%, postpartum complications in 20%, and small for gestational age newborns in 17% of the cases. Conclusions Most pregnancies in women with lupus have favorable obstetric and neonatal outcomes. Prenatal counseling, adequate multidisciplinary surveillance, and optimized treatment of the disease are fundamental pillars for these good results.

Resumo Objetivo A gravidez em mulheres com lúpus representa um risco maior de complicações em comparação com a população em geral. O presente estudo teve como objetivo determinar e descrever os resultados obstétricos e neonatais de gestantes com lúpus. Materiais e Métodos Realizamos um estudo retrospectivo observacional de gestantes com diagnóstico de lúpus, selecionadas e acompanhadas no Ambulatório de Medicina Materno-Fetal de nossa instituição entre janeiro de 2013 e julho de 2018. Analisamos 59 gestações e 52 recém-nascidos e coletamos dados referentes às características sociodemográficas, período pré-concepcional, gravidez, parto, pós-parto e nascimento. Foi realizada uma análise descritiva das variáveis. Resultados Em 58% dos casos, a gravidez transcorreu sem intercorrências. Registramos surtos em 25% dos casos, pré-eclâmpsia em 3%, restrição do crescimento fetal em 12%, perda gestacional em 10%, trabalho de parto prematuro em 10%, complicações pós-parto em 20% e recém-nascidos pequenos para a idade gestacional em 17% dos casos. Conclusões A maioria das gestações em mulheres com lúpus tem resultados obstétricos e neonatais favoráveis. Aconselhamento pré-natal, vigilância multidisciplinar adequada e tratamento otimizado da doença são pilares fundamentais para esses bons resultados.

https://doi.org/10.1055/s-0043-1772481

Resultados do tratamento do refluxo de veias safenas com endolaser 1.470 nm e correlação com o grau de insuficiência venosa
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Silva, Ana Paula Pires

; Pinto, Daniel Mendes

; Milagres, Vanessa Aline Miranda Vieira

; Bez, Leonardo Ghizoni

; Maciel, Júlio César Arantes

; Lopes, Caetano de Souza

Jornal Vascular Brasileiro

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2021, Volume 20 elocation e20200172

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

Resumo Contexto Pacientes com doença venosa crônica avançada são mais propensos a exigir outros procedimentos para recidiva de veias varicosas. Ainda não está estabelecido se a gravidade da insuficiência venosa é um fator que influencia a taxa de oclusão de veias safenas tratadas por endolaser. Objetivos Analisar a taxa de oclusão dos segmentos venosos tratados com endolaser e correlacionar com o Venous Clinical Severity Score (VCSS) e a classificação Clínica-Etiológica-Anatômica-Patológica (CEAP) dos pacientes. Métodos Análise retrospectiva de coorte de pacientes operados com endolaser 1.470 nm entre novembro/2012 a março/2020. Foram realizadas estatística descritiva e curva de sobrevida de Kaplan-Meier com regressão de Cox para grupos de VCSS e CEAP. Resultados Foram analisados 170 pacientes e 180 segmentos venosos; a idade média foi de 44,3 ± 9,2, sendo a maioria do sexo feminino (71%). A densidade de energia média utilizada na veia safena magna foi 49,2 ± 8,3 J/cm. As principais complicações foram dor no trajeto da safena (12,2%) e parestesias após 6 meses (17,2%). Não houve diferença na taxa de oclusão venosa entre grupos com VCSS ≤ 7 e VCSS > 7 (p = 0,067). O grupo de pacientes com CEAP agrupada C4-C5-C6 teve taxa de oclusão menor em relação ao grupo C2-C3 [hazard ratio (HR) = 3,22; intervalo de confiança (IC) 1,85, 5,61; p = 0,001]. Conclusões As taxas de oclusão de segmentos venosos tratados com endolaser foram menores na presença de classificações CEAP avançadas. Nesses pacientes, provavelmente deve-se despender mais energia para o tratamento eficaz das safenas.

Abstract Background Patients with advanced chronic venous disease are more likely to need additional procedures for relapsed varicose veins. It has not yet been established whether severity of venous insufficiency is a factor that influences the occlusion rate of saphenous veins treated with endolasers. Objectives To analyze occlusion rate of venous segments treated with endolaser and correlate it with patients’ Venous Clinical Severity Score (VCSS) and Clinical-Etiological-Anatomical-Pathological (CEAP) classification. Methods Retrospective analysis of a cohort of patients operated using a 1,470 nm endolaser from November 2012 to March 2020. Descriptive statistics were calculated and Kaplan-Meier survival curves were plotted with Cox regression for groups stratified by VCSS and CEAP. Results A total of 180 venous segments were analyzed in 170 patients. Mean age was 44.3 ± 9.2 and the majority of patients were female (71%). Mean energy density used in the great saphenous vein was 49.2 ± 8.3 J/cm. The most common complications were pain along the course of the saphenous vein (12.2%) and paresthesias at 6 months (17.2%). There was no difference in venous occlusion rate between groups with VCSS ≤ 7 and VCSS > 7 (p = 0.067). A group of patients classified as CEAP classes C4, C5, or C6 had a lower occlusion rate than a group at classes C2 or C3 (hazard ratio [HR] = 3.22; confidence interval [CI] 1.85, 5.61; p = 0.001]. Conclusions The occlusion rates of venous segments treated with endolaser were lower in patients with higher CEAP classes. It is probably necessary to use more energy in these patients to achieve effective treatment of saphenous veins.

https://doi.org/10.1590/1677-5449.200172 522 downloads

Effect of preconditioning and postoperative hyperbaric oxygen therapy on colonic anastomosis healing with and without ischemia in rats
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Fontoura-Andrade, José Luiz

; Pinto, Leonardo Mendes

; Carneiro, Fabiana Pirani

; Sousa, João Batista de

Acta Cirúrgica Brasileira

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2020, Volume 35 N. 5 elocation e202000503

Abstract: En | Text: En | PDF: En

Abstract Purpose To investigate the effect of hyperbaric oxygen therapy on colonic anastomosis healing with and without ischemia in rats. Methods Forty female rats underwent segmental resection of 1 cm of the left colon followed by end-to-end anastomosis. They were randomly assigned to four groups (n=10 each), a sham group; two groups were submitted to Hyperbaric Oxygen therapy (HBOT) with and without induced ischemia and the induced ischemia group without HBOT. The HBOT protocol evaluated was 100% O2 at 2.4 Atmosphere absolute pressure (ATA) for 60 minutes, two sessions before as a preconditioning protocol and three sessions after the operation. Clinical course and mortality were monitored during all experiment and on the day of euthanasia on the fourth day after laparotomy. Macroscopic appearance of the abdominal cavity were assessed and samples for breaking strength of the anastomosis and histopathological parameters were collected. Results There was no statistically significant difference in mortality or anastomosis leak between the four experimental groups. Anastomosis breaking strength was similar across groups. Conclusion The HBOT protocol tested herein at 2.4 ATA did not affect histopathological and biomechanical parameters of colonic anastomotic healing, neither the clinical outcomes death and anastomosis leak on the fourth day after laparotomy.

https://doi.org/10.1590/s0102-865020200050000003 685 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

Automation of lettuce seedlings irrigation with sensors deployed in the substrate or at the atmosphere
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Bezerra, Ana Carolina Mendes

; Valença, David da Cunha

; Carvalho, Daniel Fonseca de

; Pinho, Camila Ferreira de

; Reinert, Fernanda

; Gomes, Daniela Pinto

; Gabetto, Fernanda Palmeira

; Azevedo, Ricardo Antunes

; Masseroni, Daniele

; Medici, Leonardo Oliveira

Scientia Agricola

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apr 2019, Volume 76 N. 2 Pages 179 - 189

Abstract: En | Text: En | PDF: En

ABSTRACT: Seedling production is an important step in the lettuce production system. However, there is a tendency to apply excessive irrigation at this stage. The aim of this study was to test the use of the Simplified Irrigation Controller (SIC) under two conditions: first, with the sensor installed in the substrate (measuring the soil water tension) and second, in the atmosphere (“atmospheric” - responding to vapor demand in the atmosphere) to control the irrigation of lettuce seedlings. The performance of the SIC was evaluated by monitoring plant traits. The lettuce seeds of the Regina cultivar were sown in styrofoam trays with commercial organic substrate. Both experiments were conducted under greenhouse conditions and evaluated under different SIC activation tensions. Shoot fresh weight and dry weight, height, number of leaves, leaf length, leaf area, water use efficiency (WUE) (ratio between the dry mass of plant produced by the volume of water applied), chlorophyll content, stomatal conductance and chlorophyll a fluorescence were assessed. In the experiment with the substrate sensor, the tension of 11.5 kPa caused death in 94 % of the seedlings and was disregarded in the statistical analysis. All biometric and physiological traits evaluated decreased as the SIC tensions increased. Thus, tensions of 4.0 (substrate sensor) and 3.5 kPa (atmospheric sensor) showed greater potential for producing vigorous seedlings, with WUE average values of 1.86 and 1.37 g L−1, respectively. Cultivation of lettuce seedlings proved viable under both conditions when the SIC was used, with the emergence of a number of practical advantages of the atmospheric sensor over the substrate one.

https://doi.org/10.1590/1678-992x-2017-0163 1183 downloads

Avaliação da eficácia de um novo marcador cirúrgico para capsulorrexe anterior
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Faria, Marco Antônio Rey de

; Ávila, Marcos Pereira de

; Pinheiro, Francisco Irochima

; Faria, Bruno Mendes de

; Saraiva, Vinicius Nunes de Paiva

; Miranda, Joana Mendez Dantas de

; Pinto, Germana Mariz Queiroga Veras

; Araújo Neto, Leonardo Ugulino de

; Santos, Débora Cristiana Pereira Fernandes

Revista Brasileira de Oftalmologia

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feb 2017, Volume 76 N. 1 Pages 11 - 16

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

RESUMO Objetivo: Avaliar a eficácia de um novo marcador cirúrgico para ajudar na confecção da capsulorrexe anterior analisando o seu dimensionamento e formato, comparando com a capsulorrexe confeccionada manualmente de maneira livre. Métodos: Como experimento, 3 residentes (R3) de Oftalmologia do Hospital Universitário Onofre Lopes (HUOL) e 1 oftalmologista em treinamento, voluntários, realizaram (cada um) 10 capsulorrexes em olhos de porco enucleados. Em 5 olhos foi utilizado o marcador e em outros 5, não. Todos os olhos foram fotografados tendo ao lado uma régua para orientar e calibrar um aplicativo para a avaliação morfométrica do procedimento. O diâmetro alvo foi de 5 mm, cujo perímetro correspondente é 15,7 mm e a área 19,652 mm2. Foram avaliados em cada procedimento: os diâmetros máximo, mínimo e médio, o perímetro, a área e o desvio em relação ao diâmetro e quanto ao aspecto ideal. Resultados: No grupo utilizando o marcador o diâmetro médio foi 5,44mm (±0,89) contra 6,37mm (±0,67) (p=0,001), no grupo no qual não se utilizou o marcador; quanto ao perímetro, 17,52mm (±1,92) no grupo utilizando o marcador contra 20,14mm (±2,09) (p<0,001) sem o marcador e quanto a área, 24,73mm2 (±1,92) com o marcador, contra 32,62mm2 (±6,32) (p<0,001), sem o marcador. Em relação ao aspecto da capsulorrexe 1,26mm (±0,12), contra 1,21mm (±0,7) (p=0,09) e em relação ao desvio de curvatura: 0,87 (±0,05), contra 0,9 (±0,04), (p=0,06) respectivamente. Conclusão: O trabalho mostrou que o marcador avaliado é eficaz para auxiliar a confecção da capsulorrexe conduzindo a resultados melhores que o método a mão livre.

ABSTRACT Purpose: To evaluate the effectiveness of a surgical device that intented to help in the preparation of the anterior capsulorhexis analyzing the design and shape, comparing with capsulorhexis made by free hand. Methods: Three ophthalmology residents(R3) at the HUOL and one surgeon in training, participate in this research as volunteers. Each surgeon perform 5 capsulorhexis in porcine eyes using the device, and five others by free hand as a control. All capsulorhexis were photographed having a ruler as reference to guide and calibrate a computer application for morphometric evaluation (Cambuí Labs, Natal, Brazil). All surgeons aimed to produce a circular continuous capsulorhexis of 5 mm diameter that represents 15,7mm in perimeter and 19,652mm2 in area. Each wet-lab capsulorhexis was evaluated in regard to these criteria: diameter (mean, maximum and minimum), perimeter, area, deviation from the ideal diameter and ideal shape. Results: Compare to control groups, capsulorhexis with the aid of the surgical device showed: 5,44mm ±0,89 vs 6,37mm ±0,67, for capsulorhexis diameter (p=0,001); 17,52mm ±1,92 vs 20,14mm ±2,09 for capsulorhexis perimeter (<0.001); 24,73mm2 ±1,92 vs 32,62mm2 ±6,36 for capsulorhexis area (p<0,001). A tendency for better result with the aid of the surgical device was observed for deviation of an ideal diameter or ideal aspect were appreciated: 0,87mm ±0,05 vs 0,9 ±0,04 for deviation of a curve (p=0,06); 1,26mm ±0,12 vs 1,21mm ±0,7 for the capsulorhexis aspect (p=0,09). Conclusion: Capsulorhexis produced with the aid of the surgical device, significantly improved wet-lab capsulorhexis performance.

https://doi.org/10.5935/0034-7280.20170003 1626 downloads

Percepção da qualidade do ambiente e vivências em espaços públicos de lazer
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Silva, Emília Amélia Pinto Costa da

; Silva, Priscilla Pinto Costa da

; Oliveira, Leonardo dos Santos

; Santos, Ana Raquel Mendes dos

; Rechia, Simone

; Freitas, Clara Maria Silvestre Monteiro de

Revista Brasileira de Ciências do Esporte

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sep 2016, Volume 38 N. 3 Pages 251 - 258

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

Resumo O estudo teve como objetivo analisar a percepção da qualidade dos espaços públicos de lazer e as vivências dos usuários nesses espaços. Recorreu-se a uma pesquisa, com abordagem qualitativa, em que participaram 80 frequentadores do Parque da Jaqueira e do Calçadão de Boa Viagem, em Recife (PE). Empregou-se a análise de conteúdo. Os resultados demonstraram que os usuários usufruem dos espaços públicos de lazer, mesmo percebendo que tais espaços necessitam de melhorias no tocante à infraestrutura física e técnica.

Abstract The study aimed to analyze the perceived quality of public spaces for leisure and the experiences of users in these spaces. This research has a qualitative approach, the sample is composed of 80 people that always go to the Parque da Jaqueira and Calçadão de Boa Viagem, in Recife-PE. The data was analyzed by the content analysis. The results show that users enjoy the public spaces of leisure even realizing that such areas need some improvement in terms of physical and technical infrastructure.

Resumen El objetivo del estudio fue analizar la calidad percibida de los espacios públicos para el ocio y las experiencias de los usuarios de estos espacios. Se recurrió a una investigación, un enfoque cualitativo, en que participaron 80 personas que solían acudir al parque Jaqueira y al paseo marítimo del Boa Viagem de la ciudad de Recife-PE. Se aplicó el análisis del contenido. Los resultados mostraron que los usuarios disfrutan de los espacios públicos de ocio aunque se dan cuenta de que estos espacios necesitan mejoras respecto a la infraestructura física y técnica.

https://doi.org/10.1016/j.rbce.2016.02.005 5142 downloads

Hipertermia maligna no Brasil: análise da atividade do hotline em 2009
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Silva, Helga Cristina Almeida da

; Almeida, Clea dos Santos

; Brandão, Julio Cézar Mendes

; Silva, Cleyton Amaral Nogueira e

; Lorenzo, Mariana Elisa Pinto de

; Ferreira, Carolina Baeta Neves Duarte

; Resende, André Hosoi

; Barreira, Sara Rocha

; Almeida, Priscilla Antunes de

; Ferraro, Leonardo Henrique Cunha

; Takeda, Alexandre

; Oliveira, Kátia Ferreira de

; Lelis, Talitha Gonçalez

; Hortense, Alexandre

; Perez, Marcelo Vaz

; Schmidt, Beny

; Oliveira, Acary Souza Bulle

; Amaral, José Luiz Gomes do

Revista Brasileira de Anestesiologia

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feb 2013, Volume 63 N. 1 Pages 20 - 26

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

JUSTIFICATIVA E OBJETIVOS: Hipertermia maligna (HM) é doença farmacogenética, com reação hipermetabólica anormal a anestésicos halogenados e/ou relaxantes musculares despolarizantes. Desde 1991 há um serviço hotline de atendimento telefônico para HM no Brasil, disponível 24 horas por dia, em São Paulo. Este artigo analisa a atividade do serviço brasileiro de hotline para HM em 2009. MÉTODOS: Análise prospectiva de todas chamadas telefônicas paria maligna (HM) é doença farmacogenética, com reação hipermetabólica anormal a anestésicos halogenados e/ou relaxantes musculares despolarizantes. Desde 1991 há um serviço hotline de atendimento telefônico para HM no Brasil, disponível 24 horas por dia, em São Paulo. Este art go analisa a at vidade do serviço brasileiro de hotline para HM em 2009a o serviço brasileiro de hotline para HM, de janeiro a dezembro de 2009. RESULTADOS: Foram recebidas 22 ligações; 21 provenientes do Sul-Sudeste do Brasil e uma do Norte. Quinze eram pedidos de informações gerais sobre HM. Sete foram suspeitas de crises agudas de HM, das quais duas não foram consideradas como HM. Nas cinco crises compatíveis com HM, todos os pacientes receberam anestésicos inalatórios halogenados (2 isoflurano, 3 sevoflurano) e um usou também succinilcolina; havia quatro homens e uma mulher, com média de idade de 18 anos (2-27). Problemas descritos nas cinco crises de HM: taquicardia (cinco), aumento do gás carbônico expirado (quatro), hipertermia (três), acidemia (um), rabdomiólise (um) e mioglobinúria (um). Um paciente recebeu dantrolene. Todos os cinco pacientes com crises de HM foram seguidos em unidade de terapia intensiva e recuperaram-se sem sequelas. A suscetibilidade à HM foi posteriormente confirmada em dois pacientes por meio do teste de contratura muscular in vitro. CONCLUSÕES: O número de chamadas por ano no serviço brasileiro de hotline para HM ainda é reduzido. As características das crises foram similares às descritas em outros países. É preciso aumentar o conhecimento sobre HM no Brasil.

BACKGROUND AND OBJECTIVES: Malignant hyperthermia (MH) is a pharmacogenetic disease that causes abnormal hypermetabolic reaction to halogenated anesthetics and/or depolarizing muscle relaxants. In Brazil, there is a hotline telephone service for MH since 1991, available 24 hours a day in São Paulo. This article analyzes the activity of the Brazilian hotline service for MH in 2009. METHODS: Prospective analysis of all phone calls made to the Brazilian hotline service for MH from January to December 2009. RESULTS: Twenty-two phone calls were received: 21 from the South/Southeast region of Brazil and one from the North region. Fifteen calls were requests for general information about MH. Seven were about suspected MH acute episodes, two of which were not considered as MH. In five episodes compatible with MH, all patients received halogenated volatile anesthetics (2, isoflurane; 3, sevoflurane) and one also used succinylcholine; there were four men and one woman, with a mean age of 18 years (2-27). The problems described in the five MH episodes were tachycardia (5), increased expired carbon dioxide (4), hyperthermia (3), acidemia (1), rhabdomyolysis (1), and myoglobinuria (1). One patient received dantrolene. All five patients with MH episodes were follow-up in the intensive care unit and recovered without sequelae. Susceptibility to MH was later confirmed in two patients by in vitro muscle contracture test. CONCLUSIONS: The number of calls per year in the Brazilian hotline service for MH is still low. The characteristics of MH episode were similar to those reported in other countries. The knowledge of MH in Brazil needs to be increased.

JUSTIFICATIVA Y OBJETIVOS: La Hipertermia Maligna (HM) es una enfermedad farmacogenética, con una reacción hipermetabólica anormal a los anestésicos halogenados y/o relajantes musculares despolarizantes. Desde 1991 existe un servicio hotline de atención telefónica para la HM en Brasil a disposición las 24 horas del día en São Paulo. Este artículo analiza la actividad del servicio brasileño de hotline para la HM en el 2009. MÉTODOS: Análisis prospectivo de todas las llamadas telefónicas realizadas al servicio brasileño de hotline para la HM, desde enero a diciembre de 2009. RESULTADOS: Se recibieron 22 llamadas; 21 provenientes del Sur y Sudeste de Brasil y una del Norte. Quince eran solicitudes de informaciones generales sobre la HM. Siete fueron sobre sospechas de crisis agudas de HM, de las cuales dos no fueron consideradas como HM. En las cinco crisis compatibles con la HM, todos los pacientes recibieron anestésicos inhalatorios halogenados (2 isoflurano, 3 sevoflurano) y uno también usó succinilcolina. Había cuatro hombres y una mujer, con un promedio de edad de 18 años (2-27). Los problemas descritos en las cinco crisis de HM: taquicardia (cinco), aumento del gas carbónico espirado (cuatro), hipertermia (tres), acidemia (uno), rabdomiólisis (uno) y mioglobinuria (uno). Un paciente recibió dantrolene. Todos los cinco pacientes con crisis de HM recibieron acompañamiento en la unidad de cuidados intensivos y se recuperaron sin secuelas. La susceptibilidad a la HM fue posteriormente confirmada en dos pacientes por medio del test de la contractura muscular in vitro. CONCLUSIONES: El número de llamadas por año al servicio brasileño de hotline para la HM todavía es pequeño. Las características de las crisis fueron similares a las descritas en otros países. Es necesario aumentar el conocimiento que se tiene sobre la HM en Brasil.

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Does the casting mode influence microstructure, fracture and properties of different metal ceramic alloys?
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Bauer, José Roberto de Oliveira

; Grande, Rosa Helena Miranda

; Rodrigues-Filho, Leonardo Eloy

; Pinto, Marcelo Mendes

; Loguercio, Alessandro Dourado

Brazilian Oral Research

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jun 2012, Volume 26 N. 3 Pages 190 - 196

Abstract: En | Text: En | PDF: En

The aim of the present study was to evaluate the tensile strength, elongation, microhardness, microstructure and fracture pattern of various metal ceramic alloys cast under different casting conditions. Two Ni-Cr alloys, Co-Cr and Pd-Ag were used. The casting conditions were as follows: electromagnetic induction under argon atmosphere, vacuum, using blowtorch without atmosphere control. For each condition, 16 specimens, each measuring 25 mm long and 2.5 mm in diameter, were obtained. Ultimate tensile strength (UTS) and elongation (EL) tests were performed using a Kratos machine. Vickers Microhardness (VM), fracture mode and microstructure were analyzed by SEM. UTS, EL and VM data were statistically analyzed using ANOVA. For UTS, alloy composition had a direct influence on casting condition of alloys (Wiron 99 and Remanium CD), with higher values shown when cast with Flame/Air (p < 0.05). The factors 'alloy" and 'casting condition" influenced the EL and VM results, generally presenting opposite results, i.e., alloy with high elongation value had lower hardness (Wiron 99), and casting condition with the lowest EL values had the highest VM values (blowtorch). Both factors had significant influence on the properties evaluated, and prosthetic laboratories should select the appropriate casting method for each alloy composition to obtain the desired property.

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10.

Aneurisma ilíaco associado a fístula arteriovenosa
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Pinto, Daniel Mendes

; Bez, Leonardo Ghizoni

; Dias Júnior, José Olimpio

; Lopes, Caetano de Sousa

; Mandil, Ari

Jornal Vascular Brasileiro

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sep 2007, Volume 6 N. 3 Pages 297 - 300

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

A ruptura dos aneurismas aorto-ilíacos para a veia ilíaca ou veia cava é uma complicação pouco comum. A hipertensão venosa leva a vários sinais e sintomas, o que dificulta o diagnóstico pré-operatório, tais como edema do membro inferior, dispnéia, hematúria, sinais de insuficiência renal ou cardíaca. Sopro abdominal é a chave do diagnóstico clínico, associado à massa pulsátil e dor abdominal. O reconhecimento da fístula arteriovenosa no pré-operatório é importante para o planejamento cirúrgico. Relatamos um caso de aneurisma da artéria ilíaca comum e interna direita associado a fístula para veia ilíaca comum, cursando, inicialmente, com edema do membro inferior direito e dispnéia, o que levou ao diagnóstico incorreto de trombose venosa profunda.

Rupture of aortoiliac aneurysms into the iliac vein or vena cava is an uncommon complication. Many signs and symptoms develop as a result of venous hypertension, which makes preoperative diagnosis difficult, such as leg edema, dyspnea, hematuria, signs of renal or cardiac insufficiency. Abdominal bruit, associated with pulsatile mass and abdominal pain, is the key for clinical diagnosis. Preoperative recognition of arteriovenous fistula is important for surgical planning. We report a case of right internal and common iliac artery aneurysm associated with fistula into the common iliac vein. Initial symptoms were right leg edema and dyspnea, which induced to the incorrect diagnosis of deep vein thrombosis.

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11.

Experiência inicial com o uso de adesivo tissular contendo trombina para tratamento do pseudo-aneurisma femoral
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Pinto, Daniel Mendes

; Dias Júnior, José Olimpio

; Fonseca, Bernardo Lopes Cançado

; Moreialvar, Rodrigo Daniel

; Bez, Leonardo Ghizoni

; Lopes, Caetano de Sousa

Jornal Vascular Brasileiro

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mar 2006, Volume 5 N. 1 Pages 30 - 36

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

O pseudo-aneurisma (PSA) após cateterização femoral tem sido diagnosticado com regularidade em serviços com grande movimento de intervenções percutâneas, com incidência variando de 0,05 a 6%. PSA femorais pequenos podem ser acompanhados até a resolução espontânea. As opções de tratamento são: compressão guiada por ultra-som, injeção de trombina para trombose do PSA e tratamento cirúrgico. A injeção percutânea de trombina tem a vantagem de ser um procedimento indolor e rápido. Podem ser utilizados trombina isolada ou preparados contendo trombina associada a fibrinogênio e fatores de coagulação. A experiência inicial dos autores de cinco casos tratados com injeção de adesivo tissular contendo trombina mostrou resultado satisfatório em quatro; um caso necessitou tratamento cirúrgico. Não houve sucesso com uso isolado de trombina humana, porém, ocorreu trombose imediata após injeção de preparado de trombina associada a fibrinogênio/fator XIII. Neste artigo, são discutidas as opções de tratamento dos PSA femorais e a técnica do uso de trombina percutânea.

Pseudoaneurysms caused by femoral artery catheterization have been regularly diagnosed in medical units with a great number of percutaneous interventions, with a documented incidence between 0.05 and 6%. Small femoral pseudoaneurysms undergo spontaneous resolution. Treatment options are: ultrasound-guided compression, thrombin injection to induce pseudoaneurysm thrombosis and surgical treatment. Percutaneous thrombin injection has the advantage of being a fast and painless procedure. Both isolated thrombin and thrombin preparations with fibrinogen and coagulation factors can be used. The authors' initial experience with five cases treated with thrombin tissue adhesive showed successful results in four; one case required surgery. There was no success with isolated human thrombin, but immediate thrombosis was achieved after injection of thrombin associated to fibrinogen and factor XIII. In this article, the treatment options for femoral pseudoaneurysms and the technique of percutaneous thrombin are discussed.

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