Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2020 ( 1 )

2019 ( 56 )

2018 ( 91 )

2017 ( 77 )

Custom range...

Search Results: 1 - 10 of 50921 matches for " Luiz Ant?nio Martins Vieira "
All listed articles are free for downloading (OA Articles)
Page 1 /50921
Display every page Item
Perfil clínico e demográfico de anestesiologistas usuários de álcool e outras drogas atendidos em um servi?o pioneiro no Brasil
Alves, Hamer Nastasy Palhares;Vieira, Denise Leite;Laranjeira, Ronaldo Ramos;Vieira, Joaquim Edson;Martins, Luiz Antnio Nogueira;
Revista Brasileira de Anestesiologia , 2012, DOI: 10.1590/S0034-70942012000300008
Abstract: background and objectives: anesthesiologists are the majority in impaired-physician programs that assist physicians who abuse psychoactive substances. the aim of this paper is to show a descriptive study about the clinical and sociodemographic profile of a sample of chemically dependent anesthesiologists treated in a reference program. in addition, the objective is to cite the psychiatric comorbities, the most frequently used drugs and the psychosocial and professional repercussions of substance abuse. method: a cross-sectional and prospective study was conducted, and a socio-occupational questionnaire and a structured interview were carried out to diagnose mental and psychoactive substance use disorders, according to the international classification of diseases (the icd-10). the questionnaire and the structured interview were carried out by two skilled researchers. results: fifty-seven anesthesiologists were interviewed. most of them were male (77.2%), and the mean age was 36.1 years (sd = 8.5%). a high prevalence of abuse of opioid (59.6%), benzodiazepine (3.1%) and alcohol (35.1%) was observed. opioid users sought treatment earlier than other substance users and usually they were under pressure from their colleagues and the regional council of medicine. the incidence of drug abuse for self-medication was high in this subgroup. conclusions: anesthesiologists may present a different profile concerning the risks of opioid use. opioid abuse usually begins during medical residency or during the first years of clinical practice, which supports the hypothesis that addiction to opioids is an occupational issue among anesthesiologists.
Patellofemoral instability: evaluation by magnetic resonance imaging Instabilidade femoropatelar: avalia o por ressonancia magnética
Patrícia Martins e Souza,Marcelo Sadock de Sá Gabetto,Marcelo Ganem Serr?o,Luiz Antnio Martins Vieira
Revista Brasileira de Ortopedia , 2013,
Abstract: OBJECTIVE: To determine the contribution of magnetic resonance imaging (MRI) in evaluating patelofemoral instability. METHODS: 39 patients (45 knees) with patellar instability underwent knee magnetic resonance images between October 2009 and July 2011, at the Rede Lab's D'Or, in the city of Rio de Janeiro, State of Rio de Janeiro, were included. MRI were analyzed for the presence of bone, hyaline cartilage and soft-tissue abnormalities, as well as anatomic variants that may contribute to chronic patellar instability. RESULTS: The authors found, of the 45 knees analysed, bone changes in 44%, cartilaginous injuries in 64%, disruption of the medial patellofemoral ligament (MPFL) in 29% and joint morphology abnormalities in 73% patients. Meniscal tears were also identified in 2 (4%) patients and fibular fracture in one (2%) patient. CONCLUSION: MRI allowed the detection of predisposing factors that may contribute to the development of patellofemoral instability and the diagnosis of bone, hyaline cartilage, ligamentous and meniscal abnormalities. OBJETIVO: Determinar a contribui o da ressonancia magnética (RM) na avalia o da instabilidade femoropatelar. MéTODOS: Foram incluídos 39 pacientes (45 joelhos) com instabilidade femoropatelar, submetidos à RM do joelho entre outubro de 2009 e julho de 2011, na Rede Labs D'Or, Rio de Janeiro (RJ). Os resultados dos exames foram analisados quanto à presen a de altera es ósseas, cartilaginosas e nas partes moles, além de altera es anat micas que podem contribuir para a instabilidade patelar cr nica. RESULTADOS: Os autores encontraram, nos 45 joelhos examinados, altera es ósseas em 44%, les es da cartilagem em 64%, ruptura do ligamento patelofemoral medial (LPFM) em 29% e anormalidades da morfologia articular em 73% pacientes. Foram também identificadas les es meniscais em dois (4%) pacientes e fratura da fíbula em um (2%) paciente. CONCLUS O: A RM permitiu a detec o de fatores predisponentes à instabilidade e o diagnóstico de les es ósseas, cartilaginosas, meniscais e ligamentares.
Elabora??o de escore de risco para mediastinite pós-cirurgia de revasculariza??o do miocárdio
Magedanz, Ellen Hettwer;Bodanese, Luiz Carlos;Guaragna, Jo?o Carlos Vieira da Costa;Albuquerque, Luciano Cabral;Martins, Valério;Minossi, Silvia Daniela;Piccoli, Jacqueline da Costa Escobar;Goldani, Marco Antnio;
Revista Brasileira de Cirurgia Cardiovascular , 2010, DOI: 10.1590/S0102-76382010000200005
Abstract: introduction: the mediastinitis is a serious postoperative complication of cardiac surgery, with an incidence of 0.4 to 5% and mortality between 14 and 47%. several models were proposed to assess risk of mediastinitis after cardiac surgery. however, most of these models do not evaluate the postoperative morbidity. objective: this study aims to develop a score risk model to predict the risk of mediastinitis for patients undergoing coronary artery bypass grafting. methods: the study sample included data from 2,809 adult patients undergoing coronary artery bypass grafting between january 1996 and december 2007 at hospital s?o lucas -pucrs. logistic regression was used to examine the relationship between risk factors and the development of mediastinitis. data from 1,889 patients were used to develop the model and its performance was evaluated in the remaining data (n=920). the definitive model was created with the data analisys of 2,809 patients. results: the rate of mediastinitis was 3.3%, with mortality of 26.6%. in the multivariate analysis, five variables remained independent predictors of the outcome: chronic obstructive pulmonary disease, obesity, surgical reintervention, blood transfusion and stable angina class iv or unstable. the area under the roc curve was 0.72 (95% ci, 0.67-0.78) and p = 0.61. conclusion: the risk score was constructed for use in daily practice to calculate the rate of mediastinitis after coronary artery bypass grafting. the score includes routinely collected variables and is simple to use.
Para n o esquecer Instituto Federal de Educa o, Ciência e Tecnologia - Campus Bom Jesus do Itabapoana: Comemora es dos 39 anos do Colégio Técnico Agrícola Ildefonso Bastos Borges – abril/2009
Luiz Antnio Vieira da Silva
Vértices , 2010,
Luiz Antnio Vieira da Silva
Vértices , 2010,
Abstract: “A abelha fazendo o mel vale o tempo que n o voou...” Beto Guedes e Fernando Brant Palestra proferida no Assentamento Rural Santa Fé, na localidade de Batatal, em Apiacá (ES) em 12/11/2009.
The Effects of Different Titanium Surfaces on the Behaviour of Osteoblast-Like Cells  [PDF]
Fabiano Ribeiro Cirano, Adriane Yaeko Togashi, Márcia Martins Marques, Francisco Emílio Pustiglioni, Luiz Antnio Pugliesi Alves Lima
Journal of Biomedical Science and Engineering (JBiSE) , 2015, DOI: 10.4236/jbise.2015.86036
Abstract: This study investigated the influence of different titanium surfaces on the differentiation of rat osteoblast-like cells (osteo-1). Osteo-1 cells were cultured on the following titanium surfaces: 1) pretreated, smooth surface (PT); 2) sandblasted and acid etched surface (SLA); and 3) sandblasted and acid-etched surface rinsed under nitrogen protection to prevent exposure to air and preserved in isotonic saline solution (modSLA). Cell metabolism, total protein content, collagen content and alkaline phosphatase (AP) activity and the formation of calcified nodules were analyzed. The titanium surface did not influence cell metabolism, total protein content and collagen content. The SLA surface influenced cell differentiation, with the observation of a significant reduction of AP activity and formation of calcified nodules after 21 days compared to the PT surface. No difference was observed between the PT and modSLA surfaces. All titanium surfaces tested permitted the full expression of the osteoblast phenotype by osteo-1 cells, including matrix mineralization.
European Ancestry Predominates in Neuromyelitis Optica and Multiple Sclerosis Patients from Brazil
Doralina Guimar?es Brum, Marcelo Rizzatti Luizon, Antnio Carlos Santos, Marco Aurélio Lana-Peixoto, Cristiane Franklin Rocha, Maria Lucia Brito, Enedina Maria Lobato de Oliveira, Denis Bernardi Bichuetti, Alberto Alan Gabbai, Denise Sisterolli Diniz, Damacio Ramon Kaimen-Maciel, Elizabeth Regina Comini-Frota, Claudia E. Vieira Wiezel, Yara Costa Netto Muniz, Roberta Martins da Silva Costa, Celso Teixeira Mendes-Junior, Eduardo Antnio Donadi, Amilton Antunes Barreira, Aguinaldo Luiz Sim?es
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0058925
Abstract: Background Neuromyelitis optica (NMO) is considered relatively more common in non-Whites, whereas multiple sclerosis (MS) presents a high prevalence rate, particularly in Whites from Western countries populations. However, no study has used ancestry informative markers (AIMs) to estimate the genetic ancestry contribution to NMO patients. Methods Twelve AIMs were selected based on the large allele frequency differences among European, African, and Amerindian populations, in order to investigate the genetic contribution of each ancestral group in 236 patients with MS and NMO, diagnosed using the McDonald and Wingerchuck criteria, respectively. All 128 MS patients were recruited at the Faculty of Medicine of Ribeir?o Preto (MS-RP), Southeastern Brazil, as well as 108 healthy bone marrow donors considered as healthy controls. A total of 108 NMO patients were recruited from five Neurology centers from different Brazilian regions, including Ribeir?o Preto (NMO-RP). Principal Findings European ancestry contribution was higher in MS-RP than in NMO-RP (78.5% vs. 68.7%) patients. In contrast, African ancestry estimates were higher in NMO-RP than in MS-RP (20.5% vs. 12.5%) patients. Moreover, principal component analyses showed that groups of NMO patients from different Brazilian regions were clustered close to the European ancestral population. Conclusions Our findings demonstrate that European genetic contribution predominates in NMO and MS patients from Brazil.
Segunda opini?o em Oftalmologia
Obeid, Wilson Nahmatallah;Vieira, Luiz Antnio;Frangieh, Assad Youssef;
Arquivos Brasileiros de Oftalmologia , 2005, DOI: 10.1590/S0004-27492005000300007
Abstract: purpose: to evaluate the percentage of ophthalmologic patients who search for a second opinion and to verify the main reason for this search. methods: the methodology of the present study consists of a direct interview with 806 ophthalmologic patients, attended at a specialized hospital, through an adequately elaborated questionnaire, containing variables that can be related to the search for this second opinion. results: it was observed that 32% of the ophthalmologic patients ask for a second opinion and, of these, 31% search for other physicians in order to confirm the diagnosis. conclusion: most search for the second opinion in ophthalmology is directly linked to the doctor/patient relationship. such situation serves to warn the present professional teaching, pointing to the need for dedication, effort and greater investment in learning, regarding both the present and the future professionals. in addition, it is important to emphasize the necessity in improving the working conditions and wages. maybe, the review of these aspects can contribute to decrease the mentioned problems.
Resistência anti-helmíntica em rebanhos caprinos no Estado do Ceará
Vieira, Luiz Silva;Cavalcante, Antnio César Rocha;
Pesquisa Veterinária Brasileira , 1999, DOI: 10.1590/S0100-736X1999000300002
Abstract: goats of 45 farms in the state of ceará, brazil, were treated with anthelmintics for gastrointestinal nematodes, and their resistance to the anthelmintics was evaluated. on each farm 30 kids were weighed, ear-tagged and divided into three groups of ten. the first group received oxfendazole at 4.75mg/kg, the second levamisole at 7.5mg/kg, and the third group remained untreated as control. all goats were drenched according to their individual body weight. fecal samples were collected from all animals (treated and control) on the day of treatment and 7 days later, to provide material for egg counts and larval cultures. among 34 surveyed herds 20.6% showed levamisole resistance, 17.6% showed resistance to benzimidazole, and 35.3% had multiple resistance. at the time of the assessment 52.9% of the farmers were using broad spectrum anthelmintics. only 26.5% of the surveyed herds had nematode populations susceptible to the anthelmintics assessed. the results of larval cultures showed that larvae surviving the treatment with oxfendazole were mainly haemonchus sp and, to a lesser extent, oesophagostomum sp; those surviving levamisole treatment were haemonchus sp, oesophagostomum sp and trichostrongylus sp.
Resistência anti-helmíntica em rebanhos caprinos no Estado do Ceará
Vieira Luiz Silva,Cavalcante Antnio César Rocha
Pesquisa Veterinária Brasileira , 1999,
Abstract: Um levantamento em nível de campo sobre resistência anti-helmíntica em nematódeos gastrintestinais de caprinos foi realizado em 34 rebanhos no Estado do Ceará. Em cada rebanho foram separados 30 cabritos, de ambos os sexos, com idade variando de 1 a 6 meses, os quais foram individualmente pesados, identificados e distribuídos em três tratamentos: 1) Oxfendazole na dose de 4,75mg/kg; 2) Levamisole na dose de 7,5 mg/kg e 3) Controle (n o medicado). Os anti-helmínticos foram administrados de acordo com o peso individual de cada animal e, a dosagem utilizada para cada produto foi a recomendada pelo laboratório fabricante. Foram colhidas fezes dos animais de todos os tratamentos, para OPG e coprocultura, no dia da medica o e 7 dias após. Dos 34 rebanhos avaliados, 7 (20,6%) apresentaram resistência aos imidazóis, 6 (17,6%) aos benzimidazóis e 12 (35,3%) revelaram resistência múltipla. Apenas em 9 rebanhos (26,5%), os nematódeos foram sensíveis aos anti-helmínticos avaliados. Através do questionário aplicado detectou-se que 52,9% dos caprinocultores entrevistados usavam anti-helmínticos de amplo espectro. Os resultados das coproculturas mostraram que os gêneros sobreviventes à medica o com oxfendazole foram principalmente Haemonchus sp, seguido em menor frequência por Oesophagostomum sp, enquanto que ao cloridrato de levamisole sobreviveram Haemonchus sp, Oesophagostomum sp e Trichostrongylus sp.
Page 1 /50921
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.