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1.
Cortical ribbon sign on neuroimaging in a patient with hepatic encephalopathy secondary to herbal medicine usage
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Vieira, Gabriel de Deus
; Sá, Mariana Moreira Soares de
; Dias, Arthur de Medeiros
; Bentes, Rafael Gemaque Lima
; Amato Filho, Augusto Celso Scarparo
; Negreiros, André Augusto Lemos Vidal de
; Andrade, Ana Carolina Amaral de
; Perales, Simone Reges
; Ataide, Elaine Cristina de
; Foratto, Alexandre
; Damasceno, Alfredo
.
2.
IMPACTO-MR: um estudo brasileiro de plataforma nacional para avaliar infecções e multirresistência em unidades de terapia intensiva
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Tomazini, Bruno M
; Nassar Jr, Antonio Paulo
; Lisboa, Thiago Costa
; Azevedo, Luciano César Pontes de
; Veiga, Viviane Cordeiro
; Catarino, Daniela Ghidetti Mangas
; Fogazzi, Debora Vacaro
; Arns, Beatriz
; Piastrelli, Filipe Teixeira
; Dietrich, Camila
; Negrelli, Karina Leal
; Jesuíno, Isabella de Andrade
; Reis, Luiz Fernando Lima
; Mattos, Renata Rodrigues de
; Pinheiro, Carla Cristina Gomes
; Luz, Mariane Nascimento
; Spadoni, Clayse Carla da Silva
; Moro, Elisângela Emilene
; Bueno, Flávia Regina
; Sampaio, Camila Santana Justo Cintra
; Silva, Débora Patrício
; Baldassare, Franca Pellison
; Silva, Ana Cecilia Alcantara
; Veiga, Thabata
; Barbante, Leticia
; Lambauer, Marianne
; Campos, Viviane Bezerra
; Santos, Elton
; Santos, Renato Hideo Nakawaga
; Laranjeiras, Ligia Nasi
; Valeis, Nanci
; Santucci, Eliana
; Miranda, Tamiris Abait
; Patrocínio, Ana Cristina Lagoeiro do
; Carvalho, Andréa de
; Sousa, Eduvirgens Maria Couto de
; Sousa, Ancelmo Honorato Ferraz de
; Malheiro, Daniel Tavares
; Bezerra, Isabella Lott
; Rodrigues, Mirian Batista
; Malicia, Julliana Chicuta
; Silva, Sabrina Souza da
; Gimenes, Bruna dos Passos
; Sesin, Guilhermo Prates
; Zavascki, Alexandre Prehn
; Sganzerla, Daniel
; Medeiros, Gregory Saraiva
; Santos, Rosa da Rosa Minho dos
; Silva, Fernanda Kelly Romeiro
; Cheno, Maysa Yukari
; Abrahão, Carolinne Ferreira
; Oliveira Junior, Haliton Alves de
; Rocha, Leonardo Lima
; Nunes Neto, Pedro Aniceto
; Pereira, Valéria Chagas
; Paciência, Luis Eduardo Miranda
; Bueno, Elaine Silva
; Caser, Eliana Bernadete
; Ribeiro, Larissa Zuqui
; Fernandes, Caio Cesar Ferreira
; Garcia, Juliana Mazzei
; Silva, Vanildes de Fátima Fernandes
; Santos, Alisson Junior dos
; Machado, Flávia Ribeiro
; Souza, Maria Aparecida de
; Ferronato, Bianca Ramos
; Urbano, Hugo Corrêa de Andrade
; Moreira, Danielle Conceição Aparecida
; Souza-Dantas, Vicente Cés de
; Duarte, Diego Meireles
; Coelho, Juliana
; Figueiredo, Rodrigo Cruvinel
; Foreque, Fernanda
; Romano, Thiago Gomes
; Cubos, Daniel
; Spirale, Vladimir Miguel
; Nogueira, Roberta Schiavon
; Maia, Israel Silva
; Zandonai, Cassio Luis
; Lovato, Wilson José
; Cerantola, Rodrigo Barbosa
; Toledo, Tatiana Gozzi Pancev
; Tomba, Pablo Oscar
; Almeida, Joyce Ramos de
; Sanches, Luciana Coelho
; Pierini, Leticia
; Cunha, Mariana
; Sousa, Michelle Tereza
; Azevedo, Bruna
; Dal-Pizzol, Felipe
; Damasio, Danusa de Castro
; Bainy, Marina Peres
; Beduhn, Dagoberta Alves Vieira
; Jatobá, Joana D’Arc Vila Nova
; Moura, Maria Tereza Farias de
; Rego, Leila Rezegue de Moraes
; Silva, Adria Vanessa da
; Oliveira, Luana Pontes
; Sodré Filho, Eliene Sá
; Santos, Silvana Soares dos
; Neves, Itallo de Lima
; Leão, Vanessa Cristina de Aquino
; Paes, João Lucidio Lobato
; Silva, Marielle Cristina Mendes
; Oliveira, Cláudio Dornas de
; Santiago, Raquel Caldeira Brant
; Paranhos, Jorge Luiz da Rocha
; Wiermann, Iany Grinezia da Silva
; Pedroso, Durval Ferreira Fonseca
; Sawada, Priscilla Yoshiko
; Prestes, Rejane Martins
; Nascimento, Glícia Cardoso
; Grion, Cintia Magalhães Carvalho
; Carrilho, Claudia Maria Dantas de Maio
; Dantas, Roberta Lacerda Almeida de Miranda
; Silva, Eliane Pereira
; Silva, Antônio Carlos da
; Oliveira, Sheila Mara Bezerra de
; Golin, Nicole Alberti
; Tregnago, Rogerio
; Lima, Valéria Paes
; Silva, Kamilla Grasielle Nunes da
; Boschi, Emerson
; Buffon, Viviane
; Machado, André Sant’Ana
; Capeletti, Leticia
; Foernges, Rafael Botelho
; Carvalho, Andréia Schubert de
; Oliveira Junior, Lúcio Couto de
; Oliveira, Daniela Cunha de
; Silva, Everton Macêdo
; Ribeiro, Julival
; Pereira, Francielle Constantino
; Salgado, Fernanda Borges
; Deutschendorf, Caroline
; Silva, Cristofer Farias da
; Gobatto, Andre Luiz Nunes
; Oliveira, Carolaine Bomfim de
; Dracoulakis, Marianna Deway Andrade
; Alvaia, Natália Oliveira Santos
; Souza, Roberta Machado de
; Araújo, Larissa Liz Cardoso de
; Melo, Rodrigo Morel Vieira de
; Passos, Luiz Carlos Santana
; Vidal, Claudia Fernanda de Lacerda
; Rodrigues, Fernanda Lopes de Albuquerque
; Kurtz, Pedro
; Shinotsuka, Cássia Righy
; Tavares, Maria Brandão
; Santana, Igor das Virgens
; Gavinho, Luciana Macedo da Silva
; Nascimento, Alaís Brito
; Pereira, Adriano J
; Cavalcanti, Alexandre Biasi
.
ABSTRACT Objective: To describe the IMPACTO-MR, a Brazilian nationwide intensive care unit platform study focused on the impact of health care-associated infections due to multidrug-resistant bacteria. Methods: We described the IMPACTO-MR platform, its development, criteria for intensive care unit selection, characterization of core data collection, objectives, and future research projects to be held within the platform. Results: The core data were collected using the Epimed Monitor System® and consisted of demographic data, comorbidity data, functional status, clinical scores, admission diagnosis and secondary diagnoses, laboratory, clinical, and microbiological data, and organ support during intensive care unit stay, among others. From October 2019 to December 2020, 33,983 patients from 51 intensive care units were included in the core database. Conclusion: The IMPACTO-MR platform is a nationwide Brazilian intensive care unit clinical database focused on researching the impact of health care-associated infections due to multidrug-resistant bacteria. This platform provides data for individual intensive care unit development and research and multicenter observational and prospective trials.
RESUMO Objetivo: Descrever o IMPACTO-MR, um estudo brasileiro de plataforma nacional em unidades de terapia intensiva focado no impacto das infecções por bactérias multirresistentes relacionadas à assistência à saúde. Métodos: Descrevemos a plataforma IMPACTO-MR, seu desenvolvimento, critérios para seleção das unidades de terapia intensiva, caracterização da coleta de dados, objetivos e projetos de pesquisa futuros a serem realizados na plataforma. Resultados: Os dados principais foram coletados por meio do Epimed Monitor System® e consistiram em dados demográficos, dados de comorbidades, estado funcional, escores clínicos, diagnóstico de internação e diagnósticos secundários, dados laboratoriais, clínicos e microbiológicos e suporte de órgãos durante a internação na unidade de terapia intensiva, entre outros. De outubro de 2019 a dezembro de 2020, 33.983 pacientes de 51 unidades de terapia intensiva foram incluídos no banco de dados principal. Conclusão: A plataforma IMPACTO-MR é um banco de dados clínico brasileiro de unidades de terapia intensiva focado na pesquisa do impacto das infecções por bactérias multirresistentes relacionadas à assistência à saúde. Essa plataforma fornece dados para o desenvolvimento e pesquisa de unidades de terapia intensiva individuais e ensaios clínicos observacionais e prospectivos multicêntricos.
3.
CLINICAL EVALUATION OF THE TREATMENT OF CLAVICLE FRACTURES: INTRAMEDULLARY NAIL × PLATE
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STORTI, THIAGO MEDEIROS
; CAMILO, MAURÍCIO SIQUEIRA
; SILVA, RAFAEL FRANCISCO ALVES
; FARIA, RAFAEL SALOMON SILVA
; SIMIONATTO, CAROLINA LIMA
; PANIAGO, ALEXANDRE FIRMINO
.
RESUMO Objetivo: Trabalhos confirmam o benefício do tratamento cirúrgico para fixação de fraturas desviadas do corpo da clavícula. A fixação com placa e haste intramedular são as duas técnicas mais utilizadas. O objetivo deste estudo é comparar as duas técnicas cirúrgicas. Método: Estudo retrospectivo realizado por meio da avaliação de pacientes submetidos à fixação com haste intramedular e com placa e parafusos para o tratamento de fraturas desviadas do corpo da clavícula. Neste caso, foram avaliadas variáveis socioeconômicas, aplicado questionário da escala visual da dor, mensurado a função do ombro pelo escore de CONSTANT e UCLA, e realizada radiografia para verificação da consolidação e avaliação do encurtamento final da clavícula. Resultados: foram avaliados 65 pacientes, destes 36 (55,4%) foram submetidos à fixação da clavícula com placa e parafusos e 29 (44,6%) com haste intramedular. A mediana do encurtamento foi 0,1mm para placa e 5,8mm para haste (p = 0,001). O escore de UCLA apresentou mediana de 35 no grupo placa e 35 no grupo haste. O escore de Constant mostrou mediana de 96,5 no grupo placa e 95 no grupo haste, sem diferença significativa entre os grupos. Ao todo, foram registradas 13 (20%) complicações, 9 do grupo fixado com placa e 4 do grupo fixado com haste. A complicação mais comum foi a erosão da pele com exposição do material de síntese. Conclusão: as duas técnicas apresentam resultados satisfatórios para o tratamento das fraturas do corpo da clavícula. Nível de Evidência III, Estudos terapêuticos - Investigação dos resultados do tratamento.
ABSTRACT Objective: Studies confirm the benefit of surgical treatment for fixation of displaced midshaft clavicle fractures. Plate fixation and intramedullary nail are the two most used techniques. Our study seeks to compare these two surgical techniques. Methods: This is a retrospective study, conducted by the evaluation of patients treated for displaced midshaft clavicle fracture with intramedullary nail, and plate and screws. Socioeconomic variables were collected, a visual pain scale questionnaire was applied, the shoulder function was measured using CONSTANT and UCLA scores, and radiography was performed to verify the consolidation and evaluation of the final clavicle shortening. Results: Sixty-five patients were evaluated, 36 (55.4%) of which were subjected to clavicle fixation with plate and screws and 29 (44.6%) with intramedullary nail. The median shortening was 0.1mm for plate and 5.8mm for nail (p = 0.001). The UCLA score shows an average of 35 in the plate group and 35 in the intramedullary group. The median CONSTANT scores were 96.5 for plate and 95 for nail, without significance. In all groups, 13 (20%) complications were registered, 9 fixed with plate and 4 fixed with intramedullary nail. The most common complication was skin erosion with exposure of the synthetic material. Conclusion: The two techniques present satisfactory results for the treatment of displaced midshaft clavicle fractures. Level of Evidence III, Therapeutic Studies Investigating the Results of Treatment.
https://doi.org/10.1590/1413-785220212901231439
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4.
Differences in children and adolescents with SARS-CoV-2 infection: a cohort study in a Brazilian tertiary referral hospital
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Marques, Heloisa Helena de Sousa
; Pereira, Maria Fernanda Badue
; Santos, Angélica Carreira dos
; Fink, Thais Toledo
; Paula, Camila Sanson Yoshino de
; Litvinov, Nadia
; Schvartsman, Claudio
; Delgado, Artur Figueiredo
; Gibelli, Maria Augusta Bento Cicaroni
; Carvalho, Werther Brunow de
; Odone Filho, Vicente
; Tannuri, Uenis
; Carneiro-Sampaio, Magda
; Grisi, Sandra
; Duarte, Alberto José da Silva
; Antonangelo, Leila
; Francisco, Rossana Pucineli Vieira
; Okay, Thelma Suely
; Batisttella, Linamara Rizzo
; Carvalho, Carlos Roberto Ribeiro de
; Brentani, Alexandra Valéria Maria
; Silva, Clovis Artur
; Eisencraft, Adriana Pasmanik
; Rossi Junior, Alfio
; Fante, Alice Lima
; Cora, Aline Pivetta
; Reis, Amelia Gorete A. de Costa
; Ferrer, Ana Paula Scoleze
; Andrade, Anarella Penha Meirelles de
; Watanabe, Andreia
; Gonçalves, Angelina Maria Freire
; Waetge, Aurora Rosaria Pagliara
; Silva, Camila Altenfelder
; Ceneviva, Carina
; Lazari, Carolina dos Santos
; Abellan, Deipara Monteiro
; Santos, Emilly Henrique dos
; Sabino, Ester Cerdeira
; Bianchini, Fabíola Roberta Marim
; Alcantara, Flávio Ferraz de Paes
; Ramos, Gabriel Frizzo
; Leal, Gabriela Nunes
; Rodriguez, Isadora Souza
; Pinho, João Renato Rebello
; Carneiro, Jorge David Avaizoglou
; Paz, Jose Albino
; Ferreira, Juliana Carvalho
; Ferranti, Juliana Ferreira
; Ferreira, Juliana de Oliveira Achili
; Framil, Juliana Valéria de Souza
; Silva, Katia Regina da
; Kanunfre, Kelly Aparecida
; Bastos, Karina Lucio de Medeiros
; Galleti, Karine Vusberg
; Cristofani, Lilian Maria
; Suzuki, Lisa
; Campos, Lucia Maria Arruda
; Perondi, Maria Beatriz de Moliterno
; Diniz, Maria de Fatima Rodrigues
; Fonseca, Maria Fernanda Mota
; Cordon, Mariana Nutti de Almeida
; Pissolato, Mariana
; Peres, Marina Silva
; Garanito, Marlene Pereira
; Imamura, Marta
; Dorna, Mayra de Barros
; Luglio, Michele
; Rocha, Mussya Cisotto
; Aikawa, Nadia Emi
; Degaspare, Natalia Viu
; Sakita, Neusa Keico
; Udsen, Nicole Lee
; Scudeller, Paula Gobi
; Gaiolla, Paula Vieira de Vincenzi
; Severini, Rafael da Silva Giannasi
; Rodrigues, Regina Maria
; Toma, Ricardo Katsuya
; Paula, Ricardo Iunis Citrangulo de
; Palmeira, Patricia
; Forsait, Silvana
; Farhat, Sylvia Costa Lima
; Sakano, Tânia Miyuki Shimoda
; Koch, Vera Hermina Kalika
; Cobello Junior, Vilson
.
OBJECTIVES: To compare demographic/clinical/laboratory/treatments and outcomes among children and adolescents with laboratory-confirmed coronavirus disease 2019 (COVID-19). METHODS: This was a cross-sectional study that included patients diagnosed with pediatric COVID-19 (aged <18 years) between April 11, 2020 and April 22, 2021. During this period, 102/5,951 (1.7%) of all admissions occurred in neonates, children, and adolescents. Furthermore, 3,962 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) detection samples were processed in patients aged <18 years, and laboratory-confirmed COVID-19 occurred in 155 (4%) inpatients and outpatients. Six/155 pediatric patients were excluded from the study. Therefore, the final group included 149 children and adolescents (n=97 inpatients and 52 outpatients) with positive SARS-CoV-2 results. RESULTS: The frequencies of sore throat, anosmia, dysgeusia, headache, myalgia, nausea, lymphopenia, pre-existing chronic conditions, immunosuppressive conditions, and autoimmune diseases were significantly reduced in children and adolescents (p<0.05). Likewise, the frequencies of enoxaparin use (p=0.037), current immunosuppressant use (p=0.008), vasoactive agents (p=0.045), arterial hypotension (p<0.001), and shock (p=0.024) were significantly lower in children than in adolescents. Logistic regression analysis showed that adolescents with laboratory-confirmed COVID-19 had increased odds ratios (ORs) for sore throat (OR 13.054; 95% confidence interval [CI] 2.750-61.977; p=0.001), nausea (OR 8.875; 95% CI 1.660-47.446; p=0.011), and lymphopenia (OR 3.575; 95% CI 1.355-9.430; p=0.010), but also had less hospitalizations (OR 0.355; 95% CI 0.138-0.916; p=0.032). The additional logistic regression analysis on patients with preexisting chronic conditions (n=108) showed that death as an outcome was significantly associated with pediatric severe acute respiratory syndrome (SARS) (OR 22.300; 95% CI 2.341-212.421; p=0.007) and multisystem inflammatory syndrome in children (MIS-C) (OR 11.261; 95% CI 1.189-106. 581; p=0.035). CONCLUSIONS: Half of the laboratory-confirmed COVID-19 cases occurred in adolescents. Individuals belonging to this age group had an acute systemic involvement of SARS-CoV-2 infection. Pediatric SARS and MIS-C were the most important factors associated with the mortality rate in pediatric chronic conditions with COVID-19.
5.
COVID-19: The question of genetic diversity and therapeutic intervention approaches
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Figueiredo, David Livingstone Alves
; Ximenez, João Paulo Bianchi
; Seiva, Fábio Rodrigues Ferreira
; Panis, Carolina
; Bezerra, Rafael dos Santos
; Ferrasa, Adriano
; Cecchini, Alessandra Lourenço
; Medeiros, Alexandra Ivo de
; Almeida, Ana Marisa Fusco
; Ramão, Anelisa
; Boldt, Angelica Beate Winter
; Moya, Carla Fredrichsen
; Chin, Chung Man
; Paula, Daniel de
; Rech, Daniel
; Gradia, Daniela Fiori
; Malheiros, Danielle
; Venturini, Danielle
; Tavares, Eliandro Reis
; Carraro, Emerson
; Ribeiro, Enilze Maria de Souza Fonseca
; Pereira, Evani Marques
; Tuon, Felipe Francisco
; Follador, Franciele Aní Caovilla
; Fernandes, Glaura Scantamburlo Alves
; Volpato, Hélito
; Cólus, Ilce Mara de Syllos
; Oliveira, Jaqueline Carvalho de
; Rodrigues, Jean Henrique da Silva
; Santos, Jean Leandro dos
; Visentainer, Jeane Eliete Laguila
; Brandi, Juliana Cristina
; Serpeloni, Juliana Mara
; Bonini, Juliana Sartori
; Oliveira, Karen Brajão de
; Fiorentin, Karine
; Lucio, Léia Carolina
; Faccin-Galhardi, Ligia Carla
; Ferreto, Lirane Elize Defante
; Lioni, Lucy Megumi Yamauchi
; Consolaro, Marcia Edilaine Lopes
; Vicari, Marcelo Ricardo
; Arbex, Marcos Abdo
; Pileggi, Marcos
; Watanabe, Maria Angelica Ehara
; Costa, Maria Antônia Ramos
; Giannini, Maria José S. Mendes
; Amarante, Marla Karine
; Khalil, Najeh Maissar
; Lima Neto, Quirino Alves de
; Herai, Roberto H.
; Guembarovski, Roberta Losi
; Shinsato, Rogério N.
; Mainardes, Rubiana Mara
; Giuliatti, Silvana
; Yamada-Ogatta, Sueli Fumie
; Gerber, Viviane Knuppel de Quadros
; Pavanelli, Wander Rogério
; Silva, Weber Claudio da
; Petzl-Erler, Maria Luiza
; Valente, Valeria
; Soares, Christiane Pienna
; Cavalli, Luciane Regina
; Silva Jr, Wilson Araujo
.
Abstract Coronavirus disease 2019 (COVID-19), caused by the Severe Acute Respiratory Syndrome Coronavirus type 2 (SARS-CoV-2), is the largest pandemic in modern history with very high infection rates and considerable mortality. The disease, which emerged in China’s Wuhan province, had its first reported case on December 29, 2019, and spread rapidly worldwide. On March 11, 2020, the World Health Organization (WHO) declared the COVID-19 outbreak a pandemic and global health emergency. Since the outbreak, efforts to develop COVID-19 vaccines, engineer new drugs, and evaluate existing ones for drug repurposing have been intensively undertaken to find ways to control this pandemic. COVID-19 therapeutic strategies aim to impair molecular pathways involved in the virus entrance and replication or interfere in the patients’ overreaction and immunopathology. Moreover, nanotechnology could be an approach to boost the activity of new drugs. Several COVID-19 vaccine candidates have received emergency-use or full authorization in one or more countries, and others are being developed and tested. This review assesses the different strategies currently proposed to control COVID-19 and the issues or limitations imposed on some approaches by the human and viral genetic variability.
6.
[SciELO Preprints] - Comparative retrospective analysis of the surgical treatment of intramedullary fixation versus plate for clavicle fracture
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Medeiros Storti, Thiago
Siqueira Camilo, Mauricio
Alves Silva, Rafael Francisco
Salomon Silva Faria, Rafael
Lima Simionatto, Carolina
Firmino Paniago, Alexandre
Objective: Studies confirm the benefit of surgical treatment for fixation of displaced midshaft clavicle fractures. Plate fixation and intramedullary nail are the two most used techniques. The purpose of this study is to compare these two surgical techniques. Method: Retrospective study, performed through the evaluation of patients treated for displaced midshaft clavicle fracture with intramedullary nail and plate and screws. Socioeconomic variables were collected, a visual pain scale questionnaire was applied, the shoulder function was measured using CONSTANT and UCLA scores, and radiography was performed to verify the consolidation and evaluation of the final clavicle shortening. Results: Sixty-five patients were evaluated, 36 (55.4%) of which were submitted to clavicle fixation with plate and screws and 29 (44.6%) with intramedullary nail. The median shortening was 0.1mm for plate and 5.8mm for nail (p = 0.001). The UCLA score shows an average of 35 in the plate group and 35 in the intramedullary group. The median CONSTANT scores were 96.5 for plate and 95 for nail, without significance. In all, 13 (20%) complications were registered, 9 fixed with plate and 4 fixed with intramedullary nail. The most common complication was skin erosion with exposure of the synthetic material. Conclusion: The two techniques present satisfactory results for the treatment of displaced midshaft clavicle fractures.
Objetivo: Trabalhos confirmam o benefício do tratamento cirúrgico para fixação de fraturas desviadas do corpo da clavícula. A fixação com placa e haste intramedular são as duas técnicas mais utilizadas. O objetivo deste estudo é comparar as duas técnicas cirúrgicas. Método: Estudo retrospectivo realizado por meio da avaliação de pacientes submetidos à fixação com haste intramedular e com placa e parafusos para o tratamento de fraturas desviadas do corpo da clavícula. Neste caso, foram avaliadas variáveis socioeconômicas, aplicado questionário da escala visual da dor, mensurado a função do ombro pelo escore de CONSTANT e UCLA, e realizada radiografia para verificação da consolidação e avaliação do encurtamento final da clavícula. Resultados: foram avaliados 65 pacientes, destes 36 (55,4%) foram submetidos à fixação da clavícula com placa e parafusos e 29 (44,6%) com haste intramedular. A mediana do encurtamento foi 0,1mm para placa e 5,8mm para haste (p=0,001). O escore de UCLA apresentou mediana de 35 no grupo placa e 35 no grupo haste. O escore de Constant mostrou mediana de 96,5 no grupo placa e 95 no grupo haste, sem diferença significativa entre os grupos. Ao todo, foram registradas 13 (20%) complicações, 9 do grupo fixado com placa e 4 do grupo fixado com haste. A complicação mais comum foi a erosão da pele com exposição do material de síntese. Conclusão: as duas técnicas apresentam resultados satisfatórios para o tratamento das fraturas do corpo da clavícula.
Nível III: estudo terapêutico retrospectivo
7.
Desenvolvimento e caracterização de esferas de quitosana/ Dysphania ambrosioides (L.) Mosyakin & Clemants
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Régis, Mylena de Araújo
; Rosendo, Rosana Araújo
; Medeiros, Luanna Abílio Diniz Melquíades de
; Fook, Marcus Vinícius Lia
; Barbosa, Rossemberg Cardoso
; Figueiredo, Ana Beatriz Maximo
; Moraes, Walter Gleybson Antas de
; Siqueira, Rafael Rodrigues de
; Brasil, Arthur Willian de Lima
.
RESUMO O objetivo do presente trabalho foi produzir e caracterizar um biomaterial na forma de esferas de quitosana/ Dysphania ambrosioides (L.) Mosyakin & Clemants (mastruz) a fim de associar características positivas de ambos materiais, a quitosana com potencial osteoindutor e o mastruz capacidade de regeneração óssea, formando biomaterial a ser utilizado na formação e regeneração óssea. A planta foi coletada, identificada botanicamente e obtido extrato alcoólico bruto de Dysphania ambrosioides (L.) Mosyakin & Clemants (EAB). Para produção das esferas de quitosana e quitosana com EAB utilizou-se a técnica de Gelificação Ionotrópica. As esferas foram divididas em três grupos: um grupo de quitosana pura, outro com concentração menor de EAB e o terceiro com a maior concentração de EAB. Estas foram caracterizadas por Microscopia Óptica (MO), Microscopia Eletrônica de Varredura (MEV) e análise do Grau de Intumescimento (GI). A MO evidenciou nas superfícies externa e interna, esferas com limites definidos e com mudança de cor à medida que o percentual do EAB foi aumentado, tornando-se mais escuras. A MEV revelou, em esferas de maior concentração, quando comparado as de menor concentração: uma diminuição no tamanho e aumento da quantidade e da intercomunicação dos poros, além da alteração do formato geométrico tanto das esferas quanto dos seus poros. Na análise do Grau de intumescimento não houve diferenças significativas entre os grupos. Conclui-se que foi possível a produção de esferas de quitosana e quitosana/ Dysphania ambrosioides (L.) Mosyakin & Clemants (mastruz), que no grupo com maior percentual de EAB as amostras apresentaram-se mais escuras e com maior quantidade e intercomunicação dos poros e que embora tenha havido o intumescimento, não foi observada diferença significativa entre os grupos.
ABSTRACT The objective was to produce and characterize a biomaterial in the form of chitosan spheres/ Dysphania ambrosioides (L.) Mosyakin & Clemants (mastruz) in order to associate positive characteristics of both materials, chitosan with osteoinductive potential and the bone regeneration ability of mastruz, producing a biomaterial to use as bone former and regenarator. Plant specimens were collected, identified botanically and crude alcohol extract (CAE) were obtained. For the production of the chitosan and chitosan spheres with CAE, the Ionotrope Gellification technique was used. The spheres were divided into three groups: one example group of pure chitosan; a second example group with low CAE concentration and a third example group with a higher CAE concentration; and them characterized by Optical Microscopy (OM), Scanning Electron Microscopy (SEM) and swelling degree (SD). OM showed on the external and internal surfaces, spheres with defined limits and with color changed as the percentage of CAE was increased, becoming darker. The SEM showed, in spheres with higher CAE concentration, in comparison with the ones with low CAE concentration: A decrease in size, increase in the quantity and intercommunication of the pores, and the alteration of the geometric shape of both the spheres and their pores. In the analysis of the swelling degree, there were no significant differences between the groups. It is possible to produce chitosan spheres / Dysphania ambrosioides (L.) Mosyakin & Clemants (mastruz) which in the group with the highest percentage of CAE the samples were darker and with higher amounts and intercommunication pores and that although there was swelling, no significant difference was observed between the groups.
https://doi.org/10.1590/s1517-707620200004.1141
795 downloads
8.
Correlation between mechanical properties and stabilization time of chemical bonds in glass-ionomer cements
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MENEZES-SILVA, Rafael
; OLIVEIRA, Bruna Medeiros Bertol de
; MAGALHÃES, Ana Paula Rodrigues
; BUENO, Lígia Saraiva
; BORGES, Ana Flávia Sanches
; BAESSO, Mauro Luciano
; NAVARRO, Maria Fidela de Lima
; NICHOLSON, John Willian
; SIDHU, Sharanbir Kaur
; PASCOTTO, Renata Corrêa
.
Abstract The objective was to evaluate the compressive strength (CS), diametral tensile strength (DTS), flexural strength (FS), and Knoop microhardness (KH) of different conventional restorative glass-ionomer cements (GICs) and to correlate these mechanical properties (MP) with the stabilization time (ST) of their chemical bonds. Eighteen GICs were tested: Bioglass [B], Chemfil Rock [CR], Equia Forte [EF], Gold Label 2 [GL2], Gold Label 9 [GL9], Glass Ionomer Cement II [GI], Ionglass [IG], Ion Z[ IZ], Ionomaster [IM], Ionofil Plus [IP], Ionostar Plus [IS], Ketac Molar Easymix [KM], Magic Glass [MG], Maxxion R [Ma], Riva Self Cure [R], Vidrion R [V], Vitro Fil [VF] and Vitro Molar [VM]. The mechanical strength tests were performed in a universal testing machine. KH readings were done with a diamond indenter. STs were examined by Fourier Transform Infrared spectroscopy (FTIR). Data were analyzed with ANOVA and Tukey test (p<0.05). The Spearman rank test was used to evaluate the dependence between the MPs and ST results. The highest MP values were EF, GL2, GL9, GI and KM and the lowest for MG, MA, B, VF and IM. The longest ST was for GL2 and the shortest was for B. ST correlated positively with MP. GICs with longer chemical bonds ST are generally stronger and the ST value obtained from FTIR was useful in predicting the strength of GICs tested.
https://doi.org/10.1590/1807-3107bor-2020.vol34.0053
1048 downloads
9.
Association between BRAF (V600E) mutation and clinicopathological features of papillary thyroid carcinoma: a Brazilian single-centre case series
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Pessôa-Pereira, Danielle
; Medeiros, Mateus Fernandes da Silva
; Lima, Virna Mendonça Sampaio
; Silva Jr., Joaquim Custódio da
; Cerqueira, Taíse Lima de Oliveira
; Silva, Igor Campos da
; Fonseca Jr., Luciano Espinheira
; Sampaio, Luiz José Lobão
; Lima, Cláudio Rogério Alves de
; Ramos, Helton Estrela
.
ABSTRACT Objectives: We aimed to investigate the prevalence of the BRAF (V600E) mutation in consecutive cases of papillary thyroid carcinoma (PTC) in patients diagnosed and treated at the Hospital Sao Rafael (Salvador, BA, Brazil) and evaluate its association with clinical and pathological characteristics of PTC. Subjects and methods: We retrospectively enrolled in the study a total of 43 consecutive PTC patients who underwent total thyroidectomy. We performed DNA extraction from formalin-fixed paraffin-embedded (FFPE) tumour tissue samples. Polymerase chain reaction (PCR) and direct sequencing were used to determine BRAF (V600E) mutation status. Univariate and multivariate logistic regression analyses were employed to identify independent associations. Results: The prevalence of BRAF (V600E) mutation was 65.1% (28/43). A high frequency of older patients (p value: 0.004) was observed among the BRAF-mutated PTC group and, in contrast, a low frequency of concurrent Hashimoto's thyroiditis (HT) (p value: 0.011) was noted. Multivariate analysis confirmed that older age (OR: 1.15; 95% CI: 1.00 – 1.33; p value: 0.047) and HT (OR: 0.05; 95% CI: 0.006-0.40; p value: 0.005) were independent factors associated with BRAF (V600E) mutation. Conclusion: We found a high prevalence of BRAF (V600E) mutation in PTC cases. Older age and no concurrent HT were independently associated with BRAF (V600E) mutation.
https://doi.org/10.20945/2359-3997000000120
2899 downloads
10.
Antitumor activity and toxicity of volatile oil from the leaves of Annona leptopetala
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Brito, Monalisa Taveira
; Ferreira, Rafael Carlos
; Beltrão, Daiene Martins
; Moura, Ana Paula Gomes
; Xavier, Aline Lira
; Pita, João Carlos Lima R.
; Batista, Tatianne Mota
; Longato, Giovanna Barbarini
; Ruiz, Ana Lúcia Tasca Góis
; Carvalho, João Ernesto de
; Medeiros, Karina Carla de Paula
; Santos, Sócrates Golzio dos
; Costa, Vicente Carlos de Oliveira
; Tavares, Josean Fechine
; Diniz, Margareth de Fátima F.M.
; Sobral, Marianna Vieira
.
Abstract Annona leptopetala (R.E.Fr.) H. Rainer, Annonaceae, is used in folk medicine like antitumor and anti-inflammatory. The aim of this study was to determine chemical composition, toxicity and antitumor activity of A. leptopetala leaves volatile oil. Fresh leaves were hydrodistilled and then the volatile oil chemical composition was assessed by gas chromatography and mass spectrometry. Toxicity was assessed using haemolysis, micronucleus and acute toxicity protocols. Antitumor effects were determined in vitro and in vivo, using sulforhodamine B assay and sarcoma 180 murine tumor model, respectively. Spathulenol was the major component identified (12.56%). The volatile oil showed in vitro antitumor activity mainly in leukemia cell line (K-562), with Total growth inhibit (TGI) (concentration producing TGI) of 0.64 µg/ml. In other hand, the volatile oil <250 µg/ml did not inhibit HaCat non-tumor cell line growth. The concentration that produced 50% haemolysis was 372.8 µg/ml. The 50% lethal dose in mice was approximately 447.2 mg/kg intraperitoneally. Sarcoma 180 tumor growth inhibition rates were 59.29% and 58.77% at 100 and 150 mg/kg intraperitoneally, respectively. The volatile oil presented moderate gastrointestinal toxicity and no genotoxicity was observed at 350 mg/kg. Thus, the volatile oil shows antitumor activity with moderate toxicity.
https://doi.org/10.1016/j.bjp.2018.06.009
796 downloads
11.
A workshop on asthma management programs and centers in Brazil: reviewing and explaining concepts
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Stelmach, Rafael
; Neto, Alcindo Cerci
; Fonseca, Ana Cristina de Carvalho Fernandez
; Ponte, Eduardo Vieira
; Alves, Gerardo
; Araujo-Costa, Ildely Niedia
; Lasmar, Laura Maria de Lima Belizário Facury
; Castro, Luci Keiko Kuromoto de
; Lenz, Maria Lucia Medeiros
; Silva, Paulo
; Cukier, Alberto
; Alves, Alexssandra Maia
; Lima-Matos, Aline Silva
; Cardoso, Amanda da Rocha Oliveira
; Fernandes, Ana Luisa Godoy
; São-José, Bruno Piassi de
; Riedi, Carlos Antônio
; Schor, Deborah
; Peixoto, Décio Medeiros
; Brandenburg, Diego Djones
; Camillo, Elineide Gomes dos Santos
; Serpa, Faradiba Sarquis
; Brandão, Heli Vieira
; Lima, João Antonio Bonfadini
; Pio, Jorge Eduardo
; Fiterman, Jussara
; Anderson, Maria de Fátima
; Cardoso, Maria do Socorro de Lucena
; Rodrigues, Marcelo Tadday
; Pereira, Marilyn Nilda Esther Urrutia
; Antila, Marti
; Martins, Sonia Maria
; Guimarães, Vanessa Gonzaga Tavares
; Mello, Yara Arruda Marques
; Andrade, Wenderson Clay Correia de
; Salibe-Filho, William
; Caldeira, Zelina Maria da Rocha
; Cruz-Filho, Álvaro Augusto Souza da
; Camargos, Paulo
.
Objetivo: Relatar os resultados de uma oficina de trabalho sobre programas e centros de atenção a asmáticos (PCAAs) no Brasil para que possam servir como instrumento para melhoria e avanço dos PCAAs existentes e criação de novos. Métodos: A oficina de trabalho constituiu-se de cinco apresentações e discussões em grupos. Os grupos de trabalho discutiram os seguintes temas: implementação de uma linha de cuidado em asma; recursos humanos necessários para os PCAA; recursos necessários para financiar os PCAA; e manutenção do funcionamento dos PCAAs. Resultados: A oficina envolveu 39 participantes de todas as regiões do país, representando associações de asmáticos (n = 3), centros universitários (n = 7) e PCAAs (n = 29). Evidenciou-se uma relação direta entre a ausência de planejamento e o insucesso dos PCAAs. Com base nas experiências brasileiras elencadas durante a oficina, as premissas comuns foram a importância da sensibilização do gestor, maior participação da comunidade, interdependência entre a atenção primária e a especializada, observação da regionalização e utilização dos medicamentos disponíveis no sistema público de saúde. Conclusões: O Brasil já tem um núcleo de experiências na área programática da asma. A implementação de uma linha de cuidado em doenças respiratórias crônicas e sua inclusão nas redes de saúde parecem ser o caminho natural. Porém, a experiência nessa área ainda é pequena. Agregar pessoas com experiência nos PCAAs na elaboração da linha de cuidado em asma encurtaria tempo na criação de redes de atenção com possível efeito multiplicador, evitando que se partisse do zero em cada local isolado.
Objective: To report the results of a workshop regarding asthma management programs and centers (AMPCs) in Brazil, so that they can be used as a tool for the improvement and advancement of current and future AMPCs. Methods: The workshop consisted of five presentations and the corresponding group discussions. The working groups discussed the following themes: implementation of asthma management strategies; human resources needed for AMPCs; financial resources needed for AMPCs; and operational maintenance of AMPCs. Results: The workshop involved 39 participants, from all regions of the country, representing associations of asthma patients (n = 3), universities (n = 7), and AMPCs (n = 29). We found a direct relationship between a lack of planning and the failure of AMPCs. Based on the experiences reported during the workshop, the common assumptions about AMPCs in Brazil were the importance of raising awareness of managers; greater community participation; interdependence between primary care and specialized care; awareness of regionalization; and use of medications available in the public health system. Conclusions: Brazil already has a core of experience in the area of asthma management programs. The implementation of strategies for the management of chronic respiratory disease and their incorporation into health care system protocols would seem to be a natural progression. However, there is minimal experience in this area. Joint efforts by individuals with expertise in AMPCs could promote the implementation of asthma management strategies, thus speeding the creation of treatment networks, which might have a multiplier effect, precluding the need for isolated centers to start from zero.
https://doi.org/10.1590/s1806-37132015000100002
4433 downloads
12.
Cenários logísticos alternativos para a cabotagem do estado do Amazonas utilizando simulação computacional
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Medeiros, Rafael Lima
; Santos, José Teixeira Araújo Neto dos
; Kuwahara, Nelson
; Moita, Márcia Helena Veleda
.
Este trabalho propõe a análise da viabilidade operacional de cenários logísticos alternativos para o transporte de cabotagem do estado do Amazonas, utilizando a técnica de simulação computacional. O estudo elaborou cenários alternativos adotando os conceitos de serviço feeder e portos concentradores. Tais cenários foram simulados no ambiente ARENA® com dados das operações de 2010 a 2012. Diferentemente dos estudos anteriores, o presente trabalho abordou a temática da eficiência operacional do transporte de cabotagem do estado do Amazonas utilizando simulação computacional e construção de cenários alternativos baseados no conceito de rede hub-and-spoke. Os resultados apontaram que os cenários que tiveram taxa média de ocupação dos portos em torno de 70% são os que obtiveram os melhores indicadores operacionais, evidenciando que a viabilidade dos cenários construídos depende do equilíbrio entre a demanda exigida e a capacidade de movimentação. Desta forma, a principal inovação do trabalho é a proposta do uso do serviço feeder no estado Amazonas e a principal contribuição é ter explicitado a relação entre a demanda e o desempenho operacional para viabilidade da alternativa logística.
This work proposes the analysis of operational feasibility of alternative logistics scenarios for the cabotage of the Amazonas state using computer simulation. The study developed alternative scenarios using the concepts of service feeder and hub ports. Such scenarios were simulated in software Arena® with operations data from between 2010 and 2012. Different previous studies, this study analyzed the issue of operational efficiency of cabotage in the state of Amazonas using computer simulation and construction alternative scenarios based on the concept of hub-and-spoke network. The results showed that the scenarios that had an average occupancy rate of ports around 70% are those who have the best operational indicators, showing that the viability of the scenarios constructed depends on the balance between the required demand and the system handling capacity. Thus, the main innovation of the work was use of the proposed service feeder in Amazonas state and the main contribution is to have clarified the relationship between the demand and the operating performance of alternative scenarios.
https://doi.org/10.1590/2238-1031.jtl.v9n1a12
3350 downloads
13.
Tratamento endovascular em paciente portador de coarctação da aorta: relato de caso
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Tinoco, Eugênio Carlos Almeida
; Botelho, Antônio Carlos
; Luquini, Bruno Baião
; Campanha, Rafael Lima
; Nascimento, Marcelo
; Horta, Luciana Abreu
; Sueth, Daniela Mendonça
; Pena, Felipe Montes
; Teixeira, Lincoln Rangel de Medeiros
.
Coarctação da aorta constitui um estreitamento de origem congênita na porção inicial da aorta torácica. Tem incidência de 6 a 8% em nascidos vivos. A apresentação clínica é variada. O tratamento de escolha é o cirúrgico. Relatamos um caso de paciente do sexo feminino de 31 anos, com queixa de dor constrictiva na região cervical, dispnéia e claudicação intermitente em membros inferiores, sendo diagnosticada coarctação da aorta associada a estenose aórtica grave, que foi tratada com combinação das técnicas implantação de stent endovascular e angioplastia por balão.
Aortic coarctation is a congenital stenosis in the initial portion of the thoracic aorta. Its incidence ranges between 6-8% of liveborns. Clinical presentations are diversified. The treatment of choice is surgery. We report the case of a 31-year-old female patient with constrictive pain in the cervical region, dyspnea, and intermittent claudication of the lower limbs. She was diagnosed with aortic coarctation associated with severe aortic stenosis, which was treated using a combination of endovascular stent implantation and balloon angioplasty.
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