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ABSTRACT Objective: To report outcomes from the largest multicenter series of penile cancer patients undergoing video endoscopic inguinal lymphadenectomy (VEIL). Materials and Methods: Retrospective multicenter analysis. Authors of 21 centers from the Penile Cancer Collaborative Coalition-Latin America (PeC-LA) were included. All centers performed the procedure following the same previously described standardized technique. Inclusion criteria included penile cancer patients with no palpable lymph nodes and intermediate/high-risk disease and those with non-fixed palpable lymph nodes less than 4 cm in diameter. Categorical variables are shown as percentages and frequencies whereas continuous variables as mean and range. Results: From 2006 to 2020, 210 VEIL procedures were performed in 105 patients. Mean age was 58 (45-68) years old. Mean operative time was 90 minutes (60-120). Mean lymph node yield was 10 nodes (6-16). Complication rate was 15.7%, including severe complications in 1.9% of procedures. Lymphatic and skin complications were noted in 8.6 and 4.8% of patients, respectively. Histopathological analysis revealed lymph node involvement in 26.7% of patients with non-palpable nodes. Inguinal recurrence was observed in 2.8% of patients. 10y- overall survival was 74.2% and 10-y cancer specific survival was 84.8%. CSS for pN0, pN1, pN2 and pN3 were 100%, 82.4%, 72.7% and 9.1%, respectively. Conclusion: VEIL seems to offer appropriate long term oncological control with minimal morbidity. In the absence of non-invasive stratification measures such as dynamic sentinel node biopsy, VEIL emerged as the alternative for the management of non-bulky lymph nodes in penile cancer.

https://doi.org/10.1590/s1677-5538.ibju.2023.0065

Damage and plasticity evolution of reinforced concrete beams using laminated Euler-Bernoulli finite elements
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Imai, Ana Paula

; de Oliveira Abeche, Thiago

; Machado, Roberto Dalledone

Revista IBRACON de Estruturas e Materiais

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2023, Volume 16 Nº 5 elocation e16502

Resumo: En Pt | Texto: En Pt | PDF: En | PDF: Pt

abstract: This paper analyses the behaviour of reinforced concrete beams subjected to progressive loads. Although this topic is addressed in recent works through tri-dimensional finite elements, the present study adopts a simpler alternative, using Euler-Bernoulli’s beam finite element. The evolution of the generalized cracking is addressed by Damage Mechanics theory, and the nonlinear constitutive models of concrete and steel are considered, including plasticity and post-peak ‘. The laminated approach permits not only to ascertain the damage evolution but, in practical aspects, makes easy to define vertically symmetrical transversal sections and to distribute the reinforcement as desired, even if the steel rebars have different lengths. It is highlighted the changing of the neutral axis during the damage evolution process, which is updated automatically by the developed numeric-computational code. To validate the proposed methodology, two examples are detailed, both based on experimental tests found in the literature. The results obtained are close to the experimental ones and confirm the applicability of the proposed approach.

resumo: Este trabalho analisa o comportamento de vigas de concreto armado submetidas a carregamentos progressivos. Embora este tema seja tratado em trabalhos mais recentes através de modelos de elementos finitos tridimensionais, o presente trabalho adota uma alternativa mais simples empregando elementos finitos de viga de Euler-Bernoulli. A evolução da fissuração generalizada é abordada pela teoria da Mecânica do Dano, e são considerados os modelos constitutivos não lineares do concreto e do aço, incluindo a plasticidade e o comportamento pós-pico. A abordagem laminada permite não só verificar a evolução do dano, mas, em aspectos práticos, facilita definir seções transversais verticalmente simétricas e distribuir a armadura conforme desejado, mesmo que as barras de aço tenham comprimentos diferentes. Destaca-se a mudança da linha neutra durante o processo de evolução do dano, que é atualizado automaticamente pelo código numérico-computacional desenvolvido. Para validar a metodologia proposta, são detalhados dois exemplos, ambos baseados em testes experimentais encontrados na literatura. Os resultados obtidos são muito próximos dos experimentais e confirmam a aplicabilidade da abordagem proposta.

https://doi.org/10.1590/s1983-41952023000500002

FEM modal analysis of a garlic harvester for varying geomorphologies
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Ojeda, Elka Carolina

; Reis, Ângelo Vieira dos

; Medeiros, Fabricio Ardais

; Marques, Leomar Santos

; Machado, Roberto Lilles Tavares

; Magalhães, Ricardo Rodrigues

; Saavedra, Gianna de la Tinidad

; Zanchin, Mayara

Revista Ciência Agronômica

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2023, Volume 54 elocation e20218188

Resumo: En | Texto: En | PDF: En

ABSTRACT In family farming, mechanisation, when appropriate to the task and to the size of the property, can be one way of easing tiring and repetitive work, such as garlic harvesting. The present study is based on a model of harvester currently on the market, and proposes several improvements for mechanising the harvest on family farms, with an emphasis on sloping terrain, to reduce costs and increase productivity. Since the equipment currently on the market reduces the operational performance of these producers resulting in the high prices of commercial garlic, the aim of this study was to evaluate, using the Finite Element Method, the von Mises stresses and the displacement of a garlic harvester in different topographies. A structural analysis was carried out, and the vibration modules in the three main parts that make up the structure of the garlic harvester were checked: the structure supporting the scarifier point, the structure of the plant transport system, and the structure at the rear of the harvester. The structural modifications that were implemented corrected the initial high-stress conditions, showing improvements in stress concentration and areas of displacement. As such, the entire structure of the garlic harvester tends to withstand the proposed loads. From the results of the simulations, we conclude that the connecting support may undergo greater response from structural dynamics, and that frequencies greater than 45.7 Hz should be avoided since there are several natural frequencies above this range that might cause interference to the structure.

https://doi.org/10.5935/1806-6690.20230040

DESIGN SPECIFICATIONS OF AN AUTONOMOUS ELECTRIC VEHICLE FOR USE IN FAMILY FARM UNITS
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Rosales, Jean C.

; Machado, Roberto L. T.

; Machado, Antônio L. T.

; Andrade, Henrique G.

; Kroessin, Laís

Engenharia Agrícola

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2022, Volume 42 Nº 3 elocation e20210220

Resumo: En | Texto: En | PDF: En

ABSTRACT Family farming in Brazil is responsible for the country’s food security, ensuring most of the food consumed by Brazilians. However, the agricultural machinery and equipment industry has not been dedicated to providing innovations to this sector, focusing mainly on supplying large agribusiness properties with the most advanced technology equipment. Thus, the introduction of new technological solutions regarding agricultural machines for family farming is necessary. Considering the need to supply this branch of the Brazilian agricultural sector with new technologies, this study aimed to establish the design specifications of an autonomous electric vehicle that serves as a multifunction platform, which was primarily designed to remove weeds, mainly meeting the needs of family farmers. The product development methodology in its informational phase was applied to obtain and study these needs. As a result, 19 design specifications were established with their associated target values, allowing defining the physical and economic parameters that will be the basis for the development of the autonomous electric vehicle in its conceptual phase.

https://doi.org/10.1590/1809-4430-eng.agric.v42n3e20210220/2022

Role of salvage lymph node dissection in patients previously treated for prostate cancer: systematic review
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Fantin, João Paulo Pretti

; Furst, Maria Claudia Bicudo

; Tobias-Machado, Marcos

; Muller, Roberto Lodeiro

; Machado, Roberto Dias

; Santos, Alexandre Cesar

; Magnabosco, Wesley Justino

; Alcantara-Quispe, Cinthia

; Faria, Eliney Ferreira

International braz j urol

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Jun 2021, Volume 47 Nº 3 Páginas 484 - 494

Resumo: En | Texto: En | PDF: En

ABSTRACT Prostate cancer is the most common invasive cancer in men. Radical prostatectomy (RP) is a definitive treatment option, but biochemical recurrence can reach 40%. Salvage lymphadenectomy is a relatively recent approach to oligometasis and has been rapidly diffused primarily due to improvement in imaging diagnosis and results showing possibly promising therapy. A systematic literature review was performed in March 2020, according to the PRISMA statement. We excluded studies with patients with suspicion or confirmation of visceral and / or bone metastases. A total of 27 articles were included in the study. All studies evaluated were single arm, and there were no randomized studies in the literature. A total of 1,714 patients received salvage lymphadenectomy after previous treatment for localized prostate cancer. RP was the most used initial therapeutic approach, and relapses were based on PET / CT diagnosis, with Coline-11C being the most widely used radiopharmaceutical. Biochemical response rates ranged from 0% to 80%. The 5 years - Free Survival Biochemical recurrence was analyzed in 16 studies with rates of 0% up to 56.1%. The articles do not present high levels of evidence to draw strong conclusions. However, even if significant rates of biochemical recurrence are not evident in all studies, therapy directed to lymph node metastases may present good oncological results and postpone the onset of systemic therapy. The long-term impact in overall survival and quality of life, as well as the best strategies for case selection remains to be determined.

https://doi.org/10.1590/s1677-5538.ibju.2020.0051 450 downloads

Vaginal sparing in laparoscopic radical cystectomy for females: feasibility and technical notes
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Alcántara-Quispe, Cinthia

; Faria, Eliney Ferreira

; Santos, Alexandre Cesar

; Magnabosco, Wesley Justino

; Fantin, João

; Tobias-Machado, Marcos

; Machado, Roberto Dias

International braz j urol

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Dez 2020, Volume 46 Nº 6 Páginas 1109 - 1110

Resumo: En | Texto: En | PDF: En

https://doi.org/10.1590/s1677-5538.ibju.2019.0021 343 downloads

Análise da densidade endotelial por faixa etária dos doadores de córnea em um banco de olhos no Estado do Paraná, Brasil
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Vicini, Karla Mulinari

; Machado, Roberto Augusto Fernandes

Revista Brasileira de Oftalmologia

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Jun 2020, Volume 79 Nº 3 Páginas 180 - 183

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Objetivo: Analisar a densidade endotelial das córneas doadas para transplante nas diferentes faixas etárias. Métodos: O estudo avaliou 244 córneas de 122 doadores de ambos os sexos no Banco de Olhos de Cascavel-PR a partir da análise de prontuários médicos contendo a microscopia especular dos doadores. Resultados: A maioria dos doadores de córnea era do sexo masculino (67,2%). A idade média dos doadores foi 53,8 anos com variações entre 5 e 70 anos. A faixa etária dos 61-70 anos com o maior número de doações, correspondendo a quase 41% e a densidade média endotelial foi de 2645 células/mm² (variando de 1897 a 4201 células/mm²). Na primeira década de vida, a densidade endotelial média foi 2923 células/mm²; na segunda década 2757 células/mm²; na terceira 2846 células/mm²; na quarta 2627 células/mm²; na quinta década, 2830 células/mm²; na sexta 2605 células/mm² e na sétima década de vida 2570 células/mm². Conclusão: Este estudo demonstrou que a densidade endotelial média das córneas doadas para transplante na primeira década de vida (2923 células/mm²) quando comparada isoladamente à sétima década (2570 células/mm²) teve redução. Já na avaliação da segunda até a sexta década não houve um padrão, ora havendo acréscimo, ora decréscimo da densidade endotelial média.

Abstract Objective: To analyze the endothelial density of corneas donated for transplant in different age groups. Methods: The study evaluated 244 corneas from 122 male and female donors in Cascavel Eye Bank -PR from the analysis of medical records containing specular microscopy of the donors. Results: Most corneal donors were male (67.2%). The average donors age was 53.8 years, ranging from 5 to 70 years. The age group of 61 -70 years with the largest number of donations, corresponding to almost 41% and the average endothelial density was 2645 cells / mm² (ranging from 1897 to 4201 cells / mm²). In the first decade of life, mean endothelial density was 2923 cells mm²; in the second decade 2757 cells / mm²; in the third 2846 cells / mm²; in the fourth 2627 cells / mm²; in the fifth decade, 2830 cells / mm²; on the sixth 2605 cells / mm² and on the seventh decade of life 2570 cells / mm². Conclusion: This study demonstrated that the mean endothelial density of corneas donated for transplant of the first decade of life (2923 cells / mm²) when compared to the seventh decade alone (2570 cells / mm²) was reduced. In the evaluation from the second to the sixth decade, there was no pattern, sometimes there was an increase, sometimes a decrease in the average endothelial density.

https://doi.org/10.5935/0034-7280.20200039 530 downloads

VERION® - A influência da tecnologia do sistema guiado por imagem expressa no controle pós-operatório de astigmatismo
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Silva, Larissa Braga da

; Santos, Beatriz Iris dos

; Machado, Roberto Augusto Fernandes

; Minaré Filho, Abenor Moreira

Revista Brasileira de Oftalmologia

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Mar 2020, Volume 79 Nº 2 Páginas 95 - 98

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Objetivo: Avaliar o astigmatismo induzido pela cirurgia de catarata através da técnica de facoemulsificação (FACO) guiada pelo planejador cirúrgico VERION®, em um serviço oftalmológico do Paraná. Métodos: O estudo tem caráter observacional com avaliação individualizada de prontuários de forma retrospectiva, analisando 37 olhos de 20 pacientes operados de catarata pela técnica de FACO com a utilização do VERION® e implantação de lente não-tórica no Hospital de Olhos de Cascavel – PR no período de maio de 2016 a novembro de 2018. Resultados: Dentro de nossa amostra composta por 37 olhos abordados com assistência do VERION®, 43% dos participantes do estudo (n=16) apresentaram redução do astigmatismo inicial, inclusive com eliminação de graus mais graves de astigmatismo (≥2.5 D). Conclusão: O impacto do VERION® foi significativo uma vez que permitiu a correção do astigmatismo prévio de uma parte da amostragem. Em olhos que ocorreram astigmatismo induzido cirurgicamente essa complicação foi menos relevante clinicamente em comparação com incisões corneanas da técnica convencional.

Abstract Objective: To evaluate the astigmatism induced by cataract surgery through the phacoemulsification (PHACO) technique guided by the VERION® surgical planner, in an ophthalmological service of Paraná. Methods: This is an observational study with retrospective individualized evaluation of medical records, analyzing 37 eyes of 20 patients who underwent cataract surgery using the PHACO technique using VERION® and non-toric intraocular lens implantation at the Hospital de Olhos de Cascavel - PR in May 2016. Results: Within our sample of 37 eyes approached with VERION® assistance, 43% of study participants (n=16) had reduced initial astigmatism, including elimination of more severe degrees of astigmatism (≥2.5 D). Conclusion: The impact of VERION® was significant as it allowed the correction of previous astigmatism of a part of the sample. In eyes that had surgically induced astigmatism, this complication was less clinically relevant compared to conventional technique corneal incisions.

https://doi.org/10.5935/0034-7280.20200020 640 downloads

Technological trends in digital agriculture and their impact on agricultural machinery development practices
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Reis, Ângelo Vieira dos

; Medeiros, Fabricio Ardais

; Ferreira, Mauro Fernando

; Machado, Roberto Lilles Tavares

; Romano, Leonardo Nabaes

; Marini, Vinicius Kaster

; Francetto, Tiago Rodrigo

; Machado, Antônio Lilles Tavares

Revista Ciência Agronômica

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2020, Volume 51 Nº spe elocation e20207740

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO À medida que a população mundial cresce, a agricultura enfrenta demandas cada vez maiores com relação à produtividade, eficiência e sustentabilidade para garantir segurança alimentar. A adoção de um sistema produtivo semelhante ao da Indústria 4.0 é considerada uma forma de enfrentar esse problema na agricultura. Esta estratégia pode ser observada na agricultura de precisão. Essa nova tendência tecnológica tem um impacto nas máquinas agrícolas e na maneira pela qual elas são projetadas. Assim, o objetivo deste artigo é fazer um apanhado dos sistemas digitais nas máquinas agrícolas e a maneira que eles afetam o processo de projeto desses equipamentos num cenário de agricultura digital em desenvolvimento. Dispositivos digitais já estão presentes em muitos equipamentos, desempenhando e dando suporte a tarefas como piloto automático e aplicações em taxas variáveis. Também uma grande quantidade de sensores monitoram a cultura, o ambiente, as perdas e parâmetros operacionais em tempo real. O avanço tecnológico, no entanto, é a adoção de alternativas emergentes como a IoT, veículos elétricos e pequenas máquinas autônomas, que já estão sendo empregadas em outras áreas. Consequentemente, o processo de desenvolvimento de máquinas agrícolas envolve agora diversos domínios do conhecimento além da mecânica comum, levando as empresas a empregarem engenharia simultânea transversal entre inúmeras especialidades ao mesmo tempo e para uma mesma situação de projeto.

ABSTRACT As the world’s population grows, agriculture is facing an increasing demand for productivity, efficiency, and sustainability to ensure food security. The adoption of a production system similar to that of Industry 4.0 is considered to be a way to address this problem in agriculture. This approach can be seen in precision agriculture. This new technological trend has an impact on agricultural machinery and the way it is designed. Therefore, the objective of this article is to provide an overview of digital systems in agricultural machinery and their impact on equipment design processes in a developing digital agriculture scenario. Digital devices are already present in several types of equipment, performing or supporting tasks such as automatic steering and variable-rate applications. In addition, a large number of sensors monitor the crops, environment, production losses, and operational parameters in real time. Technological breakthroughs, however, are the adoption of emerging alternatives such as IoT, electric power vehicles, and small autonomous machines, which are already being implemented in other areas. Consequently, the development process of agricultural machines now involves several specialty domains besides the usual mechanics, compelling companies to employ the transverse concurrent engineering of several specialties at the same design situation and moment.

https://doi.org/10.5935/1806-6690.20200093 139 downloads

10.

Síndrome de Wolfram - Diagnóstico clínico de condição rara multissistêmica
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Silva, Larissa Braga da

; Santos, Beatriz Iris dos

; Machado, Roberto Augusto Fernandes

Revista Brasileira de Oftalmologia

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Dez 2019, Volume 78 Nº 6 Páginas 409 - 412

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo A Síndrome de Wolfram consiste em uma patologia neurodegenerativa de caráter genético, também conhecida pela sigla DIDMOAD que traduz os principais achados dessa doença, Diabetes Insipidus, Diabetes Mellitus, Atrofia Óptica e Surdez. O artigo visa relatar ocaso de um paciente diagnosticado clinicamente com essa síndrome em um ambulatório geral de oftalmologia. Tendo em vistaque os pacientes portadores dessa alteração genética apresentam mais de um par craniano afetado e quadro clínico sem históricode meningite ou outras alterações neurológicas, tem-se que pensar em alterações raras, como é o caso dessa síndrome. A partir dodiagnóstico, aplicou-se o questionário WRUS em consulta, o qual permitiu a comparação do paciente abordado com dados obtidosinternacionalmente disponíveis na literatura.

Abstract Wolfram Syndrome consists of a neurodegenerative pathology of genetic character, also known by the acronym DIDMOAD that translates the main findings of this disease, Diabetes Insipidus, Diabetes Mellitus, Optic Atrophy and Deafness. The article report the case of a patient diagnosed clinically with this syndrome in a general ophthalmology out patient clinic. Considering that patients with this genetic alteration have more than one cranial nerve affected by the disease and clinical history without meningitis or other neurological alterations, one has to think about rare alterations, as is the case with this syndrome. From the diagnosis, the WRUS questionnaire was applied in consultation, which all owed the comparation of the patient with concepts obtained internationally available in the literature.

https://doi.org/10.5935/0034-7280.20190172 1889 downloads

11.

External validation of nomogram to predict inguinal lymph node metastasis in patients with penile cancer and clinically negative lymph nodes
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Maciel, Carlos Vaz de Melo

; Machado, Roberto Dias

; Morini, Mariana Andozia

; Mattos, Pablo Aloisio Lima

; Reis, Ricardo dos

; Reis, Rodolfo Borges dos

; Guimarães, Gustavo Cardoso

; Cunha, Isabela Werneck da

; Faria, Eliney Ferreira

International braz j urol

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Ago 2019, Volume 45 Nº 4 Páginas 671 - 678

Resumo: En | Texto: En | PDF: En

ABSTRACT Introduction Penile cancer (PC) occurs less frequently in Europe and in the United States than in South America and parts of Africa. Lymph node (LN) involvement is the most important prognostic factor, and inguinal LN (ILN) dissection can be curative; however, ILN dissection has high morbidity. A nomogram was previously developed based on clinicopathological features of PC to predict ILN metastases. Our objective was to conduct an external validation of the previously developed nomogram based on our population. Materials and methods We included men with cN0 ILNs who underwent ILN dissection for penile carcinoma between 2000 and 2014. We performed external validation of the nomogram considering three different external validation methods: k-fold, leave-one-out, and bootstrap. We also analyzed prognostic variables. Performance was quantified in terms of calibration and discrimination (receiver operator characteristic curve). A logistic regression model for positive ILNs was developed based on clinicopathological features of PC. Results We analyzed 65 men who underwent ILN dissection (cN0). The mean age was 56.8 years. Of 65 men, 24 (36.9%) presented with positive LNs. A median 21 ILNs were removed. Considering the three different methods used, we concluded that the previously developed nomogram was not suitable for our sample. Conclusions In our study, the previously developed nomogram that was applied to our population had low accuracy and low precision for correctly identifying patients with PC who have positive ILNs.

https://doi.org/10.1590/s1677-5538.ibju.2018.0756 534 downloads

12.

Knapsack sprayers: effort required for pumping lever operation
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Lambrecht, Edson

; Rosa, Douglas Silva da

; Machado, Roberto Lilles Tavares

; Machado, Antônio Lilles Tavares

; Reis, Ângelo Vieira dos

Ciência Rural

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2019, Volume 49 Nº 8 elocation e20181012

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO: Existem diversos equipamentos utilizados na aplicação de agrotóxicos em propriedades familiares, principalmente os pulverizadores costais manuais. Estes ganham destaque pela sua versatilidade de uso e, principalmente, o baixo custo para o produtor rural. Na bibliografia foi constatado poucos estudos relacionados ao operador, quando analisado o seu esforço ao acionar a alavanca do pulverizador costal. Os pulverizadores costais foram avaliados quanto aos esforços necessários ao deslocamento da alavanca: para atingir a pressão de 300 kPa, na manutenção desta e em seu retorno para a posição inicial. Este estudo teve como objetivo avaliar os esforços do operador ao acionar a alavanca utilizando como fluido o biofertilizante composto Super Magro. Conclui-se, no que tange ao esforço para acionamento da alavanca, que todos os pulverizadores estão dentro das normas da CLT (Consolidação das Leis Trabalhistas), porém existem restrições a alguns pulverizadores costais manuais em relação às normas internacionais.

ABSTRACT: Various equipment, mainly manual knapsack sprayers, are used to apply agrochemicals by smallholder farmers. They are highlighted by their versatility of use and mainly by their low cost for farmers. Few operator-related studies were reported in the literature regarding the effort required to operate the knapsack sprayer lever. Knapsack sprayers were evaluated regarding the effort required to move their hand levers, reach and maintain the 300 kPa pressure, and return to the initial position. The objective of this study was to evaluate the operator’s effort to operate the hand lever using the “Super magro” biofertilizer as fluid. It was concluded that all knapsack sprayers are within the Consolidation of Labor Laws (CLT) standards regarding the effort required to operate the hand lever. However, restrictions have been reported in some manual knapsack sprayers regarding international standards.

https://doi.org/10.1590/0103-8478cr20181012 2002 downloads

13.

Neovagina construction and continent cutaneous urinary reservoir using a previous orthotopic ileal neobladder
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Quispe, Cinthia Alcántara

; Machado, Roberto Dias

; Magnabosco, Wesley Justino

; Santos, Alexandre Cesar

; Faria, Eliney Ferreira

International braz j urol

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Out 2018, Volume 44 Nº 5 Páginas 1036 - 1041

Resumo: En | Texto: En | PDF: En

ABSTRACT Standard radical cystectomy (RC) in women involves removal of the distal ureters, bladder, proximal urethra, uterus, ovaries, and adjacent vagina. Furthermore, pelvic organ-preserving RC to treat selected women has become an accepted technique and may confer better postoperative sexual and urinary functions than standard RC, avoiding complications such as incontinence, prolapse, neobladder-vaginal fistula (NVF), and sexual dysfunction, without compromising oncological outcome. This article reports a different surgical approach: a patient who underwent a cutaneous continent reservoir and neovagina construction using a previous ileal orthotopic neobladder after RC. Patient presented no complications and she has no evidence of recurrent disease and is sexually active, with a satisfactory continent reservoir. This case is the first report of this procedure that was able to treat concomitant dyspareunia caused by short vagina and neobladder-vaginal fistula. In conclusion, standard radical cystectomy with no vaginal preservation can have a negative impact on quality of life. In the present case, we successfully treated neobladder fistula and short vagina by transforming a previous ileal orthotopic neobladder into two parts: a continent reservoir and a neovagina. However, to establish the best approach in such patients, more cases with long-term follow-up are needed.

https://doi.org/10.1590/s1677-5538.ibju.2018.0005 1303 downloads

14.

Synchronous abdominal tumors: is combined laparoscopic surgery in a single approach a safe option?
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Cartapatti, Marcelo

; Machado, Roberto Dias

; Muller, Roberto Lodeiro

; Magnabosco, Wesley J.

; Santos, Alexandre César

; Chapin, Brian Francis

; Melani, Armando

; Talvane, Antonio

; Tobias-Machado, Marcos

; Faria, Eliney Ferreira

International braz j urol

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Jun 2018, Volume 44 Nº 3 Páginas 483 - 490

Resumo: En | Texto: En | PDF: En

ABSTRACT Background and Purpose: Recent advances in cancer treatment have resulted in bet- ter prognosis with impact on patient's survival, allowing an increase in incidence of a second primary neoplasm. The development of minimally invasive surgery has provided similar outcomes in comparison to open surgery with potentially less mor- bidity. Consequently, this technique has been used as a safe option to simultaneously treat synchronous abdominal malignancies during a single operating room visit. The objective of this study is to describe the experience of two tertiary cancer hospitals in Brazil, in the minimally invasive treatment of synchronous abdominal neoplasms and to evaluate its feasibility and peri-operative results. Materials and Methods: We retrospectively reviewed the data from patients who were submitted to combined laparoscopic procedures performed in two tertiary hospitals in Brazil from May 2009 to February 2015. Results: A total of 12 patients (9 males and 3 females) with a mean age of 58.83 years (range: 33 to 76 years) underwent combined laparoscopic surgeries for the treatment of at least one urological disease. The total average duration of surgery was 339.8 minutes (range: 210 to 480 min). The average amount of intraoperative bleeding was 276.6mL (range: 70 to 550mL) and length of hospitalization was 5.08 days (range: 3 to 10 days). Two patients suffered minor complications regarding Clavien system during the immediate postoperative period. Conclusions: Combined laparoscopic surgery for the treatment of synchronous tumors is feasible, viable and safe. In our study, there was a low risk of postoperative morbidity.

https://doi.org/10.1590/s1677-5538.ibju.2017.0429 501 downloads

15.

Monitoring structures with optical fibers: infiltration detection
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MARCONCIN, LILIANE R.

; MACHADO, ROBERTO D.

; LACERDA, LUIZ A. DE

; AUFLEGER, MARKUS

Anais da Academia Brasileira de Ciências

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Abr 2018, Volume 90 Nº 2 Páginas 1865 - 1872

Resumo: En | Texto: En | PDF: En

ABSTRACT The use of sensors and optical fibers for monitoring structures is continuously growing. Strains, displacements, accelerations, temperatures are just a few of the monitoring possibilities. In the case of dam structures, concrete face rockfill dams constitute a type of structures where the monitoring of water infiltrations is of particular interest. In large structures of this type, opening of slab joints is a common effect of general strain distributions, but crack formation may also occur as a result of high compressive stresses, during and after the reservoir filling stage. In this context, this paper verifies, experimentally, the applicability and the response of a distributed fiber optic monitoring system in the identification of infiltration spots and its potential sizes. The experimental tests confirm the technical feasibility of detecting infiltrations, but did not show clear evidence of their sizes.

https://doi.org/10.1590/0001-3765201820170144 1230 downloads

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