Produção Nacional
Revisado por pares
Frederico Augusto Pires Fernandes, Luíz Carlos Casteletti, Juno Gallego,
The expanded austenite γN can be produced in austenitic stainless steels by plasma nitriding, carburizing or nitrocarburizing at low temperatures. This metastable phase presents higher hardness and toughness if compared with traditional nitride layers whilst also maintaining the corrosion resistance. However, the application of plasmas composed by both nitrogen and carbon is technologically recent and the effect of such process on the microstructure and properties of the nitrocarburized layers is ...
Tópico(s): Fusion materials and technologies
2013 - Elsevier BV | Journal of Materials Research and Technology
Produção Nacional
Revisado por pares
Marcos Alves Fontes, Ricardo Gomes de Araújo Pereira, Frederico Augusto Pires Fernandes, Luíz Carlos Casteletti, P.A.P. Nascente,
Plasma nitriding is a thermo-physical-chemical treatment process, which promotes surface hardening, caused by interstitial diffusion of atomic nitrogen into metallic alloys. In this work, this process was employed in the surface modification of a sintered ferrous alloy. Scanning electron microscopy (SEM), X-ray diffraction (XRD) analyses, and wear and microhardness tests were performed on the samples submitted to ferrox treatment and plasma nitriding carried out under different conditions of time ...
Tópico(s): Advanced ceramic materials synthesis
2014 - Elsevier BV | Journal of Materials Research and Technology
Produção Nacional
Frederico Augusto Pires Fernandes, Luíz Carlos Casteletti, George E. Totten, Juno Gallego,
Expanded austenite (γN), which can be produced during plasma nitriding of austenitic stainless steels, provides high levels of strength, toughness and corrosion resistance by comparison with traditional nitride layers. However, expanded austenite properties can be lost due to decomposition caused its thermodynamic metastability. In the present work, austenitic stainless AISI 316L steel was plasma nitrided at 723 K for 5 h at 500 Pa and microstructurally characterised by X-ray diffraction (XRD), and ...
Tópico(s): Microstructure and Mechanical Properties of Steels
2012 - Maney Publishing | International Heat Treatment and Surface Engineering
Produção Nacional
Revisado por pares
Kleber S. Cruz, Elisangela S. Meza, Frederico Augusto Pires Fernandes, José M.V. Quaresma, Luíz Carlos Casteletti, Amauri Garcia,
Tópico(s): Metallurgy and Material Forming
2010 - Springer Science+Business Media | Metallurgical and Materials Transactions A
Produção Nacional
Revisado por pares
Frederico Augusto Pires Fernandes, Stênio Cristaldo Heck, Carlos Alberto Picone, Luíz Carlos Casteletti,
Tool steels are applied in a variety of industrial operations providing a good balance of properties. Surface engineering has the potential to improve productivity and further extend the lifetime of metallic components. In the present work plasma nitriding is applied to the hot work AISI H13 tool steel to improve wear and corrosion characteristics. The steel was nitrided in the tempered condition at three different temperatures and pressures for 5 h of duration. At 450 °C of nitriding temperature ...
Tópico(s): Semiconductor materials and devices
2019 - Elsevier BV | Surface and Coatings Technology
Produção Nacional
Revisado por pares
Frederico Augusto Pires Fernandes, Carlos Alberto Picone, George E. Totten, Luíz Carlos Casteletti,
Supermartensitic stainles steels (SMSS's) are a new generation of martensitic steels that have been increasingly used in oil and gas applications due to their adequate corrosion resistance and mechanical properties. In the present study, SMSS specimens (UNS S41425) were solution heat treated and air cooled followed by plasma nitriding and nitrocarburising at 400, 450 and 500°C for 5h. The produced layers were characterized by optical microscopy, microhardness testing, X-ray diffraction and corrosion ...
Tópico(s): Corrosion Behavior and Inhibition
2018 - Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímer | Materials Research
Produção Nacional
A R Mattar, Stênio Cristaldo Heck, Amadeu Lombardi Neto, Frederico Augusto Pires Fernandes, George E. Totten, Luíz Carlos Casteletti,
Austempered ductile iron (ADI) is the most recent development in the nodular iron family. The austempering treatment produces a unique microstructure, ausferrite, which provides high mechanical strength combined with ductility, toughness, and good fatigue and wear resistance. The effect of alloying elements Cu, Ni and Mo on the mechanical properties and austemperability of ADI is reported. The mechanical strength and toughness decreased with the addition of Mo, but both wear resistance and austemperability ...
Tópico(s): Powder Metallurgy Techniques and Materials
2011 - Maney Publishing | International Heat Treatment and Surface Engineering
Produção Nacional
Revisado por pares
Frederico Augusto Pires Fernandes, Juno Gallego, Carlos Alberto Picon, Germano Tremiliosi‐Filho, Luíz Carlos Casteletti,
Bearing steels must have high hardness, good wear resistance and dimensional stability. In the present work, the AISI 52100 bearing steel was selected as the substrate for a niobium carbide coating produced by a salt-bath thermo-reactive deposition process. The present work addresses the effect of niobium carbide coating on the wear and corrosion resistance of the abovementioned steel. A homogeneous layer composed solely by the cubic niobium carbide (NbC) was produced. The carbide coating yielded ...
Tópico(s): Diamond and Carbon-based Materials Research
2015 - Elsevier BV | Surface and Coatings Technology
Produção Nacional
Revisado por pares
Frederico Augusto Pires Fernandes, Stênio Cristaldo Heck, Carlos Alberto Picon, George E. Totten, Luíz Carlos Casteletti,
Pack chromising treatment is an environmentally friendly alternative to hard chromium to form wear and corrosion resistant surface layers. In this work, samples of AISI 1060 steel were pack chromised for 6 and 9 h at 1000 and 1050°C using different activator concentrations. Wear tests were performed in dry conditions and corrosion tests in natural sea water for the pack chromised samples and hard chromium. Pack chromising yielded the formation of layers with high chromium concentrations, high hardness ...
Tópico(s): Advanced materials and composites
2012 - Maney Publishing | Surface Engineering
Produção Nacional
Frederico Augusto Pires Fernandes, George E. Totten, Juno Gallego, Luíz Carlos Casteletti,
Supermartensitic stainless steels (SMSSs) are a new generation of the classic 13%Cr martensitic steels, lower in carbon and with additional alloying of nickel and molybdenum offering better weldabilty and low temperature toughness. Several works have shown that plasma nitriding and nitrocarburising of stainless steels at low temperatures produces a hard surface layer which results in increased wear resistance. In this work, SMSS samples were plasma nitrided and nitrocarburised at 400, 450 and 500° ...
Tópico(s): Advanced materials and composites
2012 - Maney Publishing | International Heat Treatment and Surface Engineering
Produção Nacional
Revisado por pares
George E. Totten, Luíz Carlos Casteletti, Frederico Augusto Pires Fernandes, Juno Gallego,
Abstract High chromium content is responsible for the formation of a protective passive surface layer on austenitic stainless steels (ASS). Due to their larger amounts of chromium, superaustenitic stainless steels (SASS) can be chosen for applications with higher corrosion resistance requirements. However, both of them present low hardness and wear resistance that has limited their use for mechanical parts fabrication. Plasma nitriding is a very effective surface treatment for producing harder and ...
Tópico(s): High-Temperature Coating Behaviors
2011 - ASM International | Journal of ASTM International
Produção Nacional
Revisado por pares
Flávia Gomes de Melo Coelho, Florindo Stella, Larissa Pires de Andrade, Fábio Augusto Barbieri, José Carlos Fernandes Galduróz, Sebastião Gobbi, José Luiz Riani Costa, Lílian Teresa Bucken Gobbi,
ABSTRACT The decline in frontal cognitive functions contributes to alterations of gait and increases the risk of falls in patients with dementia, a category which included Alzheimer's disease (AD). The objective of the present study was to compare the gait parameters and the risk of falls among patients at different stages of AD, and to relate these variables with cognitive functions. This is a cross-sectional study with 23 patients with mild and moderate AD. The Clinical Dementia Rating was used ...
Tópico(s): Stroke Rehabilitation and Recovery
2012 - Taylor & Francis | Aging Neuropsychology and Cognition
Produção Nacional
Revisado por pares
Mirian A.F. Hayashi, Alessandra F. Murbach, Danielle Ianzer, Fernanda Calheta Vieira Portaro, Benedito C. Prezoto, Beatriz Lieblich Fernandes, Paulo Flávio Silveira, Carlos Alberto-Silva, Raquel S. Pires, Luiz Roberto Britto, Vincent Dive, Antônio Carlos Martins de Camargo,
Abstract The bradykinin‐potentiating peptides from Bothrops jararaca venom are the most potent natural inhibitors of the angiotensin‐converting enzyme. The biochemical and biological features of these peptides were crucial to demonstrate the pivotal role of the angiotensin‐converting enzyme in blood pressure regulation. In the present study, seven bradykinin‐potentiating peptides were identified within the C‐type natriuretic peptide precursor cloned from snake brain. The bradykinin‐potentiating ...
Tópico(s): Venomous Animal Envenomation and Studies
2003 - Wiley | Journal of Neurochemistry
Produção Nacional
Revisado por pares
Frederico Augusto Pires Fernandes, Stênio Cristaldo Heck, Ricardo Gomes de Araújo Pereira, Carlos Alberto Picon, P.A.P. Nascente, Luíz Carlos Casteletti,
The superiority of superaustenitic stainless steel (SASS) lies in its good weldability and great resistance to stress corrosion and pitting, because of its higher chromium, molybdenum, and nitrogen contents, when compared to general stainless steels. However, some of its applications are limited by very poor wear behavior. Plasma-nitriding is a very effective treatment for producing wear resistant and hard surface layers on stainless steels without compromising the corrosion resistance. In this work, ...
Tópico(s): Ion-surface interactions and analysis
2010 - Elsevier BV | Surface and Coatings Technology
Produção Nacional
Revisado por pares
Priscila Carvalho Miranda, André Luiz Lopes Sampaio, Rafaela Aquino Fernandes Lopes, Alessandra Ramos Venosa, Carlos Augusto Costa Pires de Oliveira,
In the past, it was thought that hearing loss patients with residual low-frequency hearing would not be good candidates for cochlear implantation since insertion was expected to induce inner ear trauma. Recent advances in electrode design and surgical techniques have made the preservation of residual low-frequency hearing achievable and desirable. The importance of preserving residual low-frequency hearing cannot be underestimated in light of the added benefit of hearing in noisy atmospheres and ...
Tópico(s): Ear Surgery and Otitis Media
2014 - Hindawi Publishing Corporation | International Journal of Otolaryngology
Produção Nacional
Revisado por pares
Moacir Fernandes de Godoy, Cibele Matsuura de Oliveira, Vanessa Alves Fabri, Luíz Carlos de Abreu, Vítor Engrácia Valenti, Adilson Casemiro Pires, Rodrigo Daminello Raimundo, José Luiz de Figueiredo, Glauce Rejane Leonardi Bertazzi,
The aim of this study was evaluate the late-onset repercussions of heart alterations of patients with systemic lupus erythematosus (SLE) after a 13-year follow up.A historical prospective study was carried out involving the analysis of data from the charts of patients with a confirmed diagnosis of lupus in follow up since 1998. The 13-year evolution was systematically reviewed and tabulated to facilitate the interpretation of the data.Forty-eight patient charts were analyzed. Mean patient age was ...
Tópico(s): Monoclonal and Polyclonal Antibodies Research
2013 - BioMed Central | BMC Research Notes
Produção Nacional
Walter J. Gomes, Rita Simone Lopes Moreira, Alexandre Cabral Zilli, Luiz Carlos Bettiati, Fernando Augusto Marinho dos Santos Figueira, Stephanie Steremberg Pires D’ Azevedo, Marcelo José Ferreira Soares, Márcio Pimentel Fernandes, Roberto Vito Ardito, R. Bogdan, Valquíria Pelisser Campagnucci, Diana Shimoda Nakasako, Renato A. K. Kalil, Clarissa Garcia Rodrigues, Anilton Bezerra Rodrigues, Marcelo Matos Cascudo, Fernando Antibas Atik, Elson Borges Lima, Vinícius José da Silva Nina, Renato Albuquerque Heluy, Lisandro Gonçalves Azeredo, Odilon Silva Henrique, José Teles de Mendonça, Katharina Kelly de Oliveira Gama Silva, Marcelo Pandolfo, José Dantas de Lima Júnior, Renato Max Faria, Jonas Gonçalves dos Santos, Rodrigo Pereira Paez, Guilherme Henrique Biachi Coelho, Sérgio Nunes Pereira, Roberta Senger, Ênio Buffolo, Guido Marco Caputi, José Amalth do Espírito Santo, Juliana Aparecida Borges de Oliveira, Otávio Berwanger, Alexandre Biasi Cavalcanti, Fábio Biscegli Jatene,
To report the early results of the BYPASS project - the Brazilian registrY of adult Patient undergoing cArdiovaScular Surgery - a national, observational, prospective, and longitudinal follow-up registry, aiming to chart a profile of patients undergoing cardiovascular surgery in Brazil, assessing the data harvested from the initial 1,722 patients.Data collection involved institutions throughout the whole country, comprising 17 centers in 4 regions: Southeast (8), Northeast (5), South (3), and Center-West ( ...
Tópico(s): Cardiac and Coronary Surgery Techniques
2017 - Brazilian Society of Cardiovascular Surgery | Brazilian Journal of Cardiovascular Surgery
Produção Nacional
Rodrigo Pereira Paez, Nelson Américo Hossne, José Amalth do Espírito Santo, Otávio Berwanger, Renato Hideo Nakagawa Santos, Renato A. K. Kalil, Fábio Biscegli Jatene, Alexandre Biasi Cavalcanti, Alexandre Cabral Zilli, Luiz Carlos Bettiati, Fernando Augusto Marinho dos Santos Figueira, Stephanie Steremberg Pires D’Azevedo, Marcelo José Ferreira Soares, Márcio Pimentel Fernandes, Roberto Vito Ardito, R. Bogdan, Valquíria Pelisser Campagnucci, Diana Shimoda Nakasako, Clarissa Garcia Rodrigues, Anilton Bezerra Rodrigues, Marcelo Matos Cascudo, Fernando Antibas Atik, Elson Borges Lima, Vinícius José da Silva Nina, Renato Albuquerque Heluy, Lisandro Gonçalves Azeredo, Odilon Silva Henrique, José Teles de Mendonça, Katharina Kelly de Oliveira Gama Silva, Marcelo Pandolfo, José Dantas de Lima Júnior, Renato Max Faria, Jonas Gonçalves dos Santos, Guilherme Henrique Biachi Coelho, Sérgio Nunes Pereira, Roberta Senger, Ênio Buffolo, Guido Marco Caputi, Juliana Aparecida Borges de Oliveira, Walter J. Gomes,
international guidelines recommend that national societies establish their own database on the practice and results of CABG and, in anticipation of this, the BYPASS registry was introduced in 2015 [2,3] .To provide a comprehensive understanding of the scenario of cardiovascular surgery in Brazil, this analysis presents the clinical profile and outcomes of patients undergoing CABG and enrolled in the BYPASS project, assessing the data harvested from the initial cohort of patients included. METHODSThis ...
Tópico(s): Cardiac and Coronary Surgery Techniques
2019 - Brazilian Society of Cardiovascular Surgery | Brazilian Journal of Cardiovascular Surgery
Produção Nacional
Luíz Carlos Casteletti, Frederico Augusto Pires Fernandes, Gustavo Satoru Takeya, Carlos Alberto Picon, Germano Tremiliosi‐Filho,
Entre as técnicas utilizadas no melhoramento de desempenho de materiais, a deposição na superfície de componentes pode ser eficaz para recuperação de elementos desgastados. Os processos de aspersão térmica, devido a sua versatilidade, quanto à aplicação, tipos de camadas e espessuras, constituem-se numa forma bastante adequada na obtenção de camadas de elevada dureza para proteção ou reparo do componente base, sendo possível revestir substratos metálicos com polímeros, metais ou cerâmicas. Entre ...
Tópico(s): Materials Engineering and Processing
2010 - SciELO | Rem Revista Escola de Minas
Produção Nacional
Hélio Bernardes Pires Júnior, Lígia Miranda Ferreira Borges, Lorena Alessandra Dias de Sousa, Luíz Carlos da Cunha, Ruy de Souza Lino Júnior, Dorcas Fernandes dos Anjos Melo, Marcelo Elias Pereira,
This study was developed aiming to evaluate the acute effects of Melia azedarach hexanic fruit extract on mice. Two treated groups, one for each dose, 300 mg/kg and 2000 mg/kg, were prepared. For each treatment group, a non-treated control group was used. All groups were composed of six animals, three of each sex. The animals were evaluated at 30 min., 1h, 2h, 4h, 6h, 12h and 24h and then daily, for 14 days after treatment, following the Hippocratic screening. At each three days weight gain and ...
Tópico(s): Insect Pest Control Strategies
2012 - UNIVERSIDADE FEDERAL DE GOIÁS | Ciência Animal Brasileira
Produção Nacional
Revisado por pares
Moisés Fernandes Bezerra, Luiz Drude de Lacerda, Carlos Eduardo de Rezende, Marcos Alberto Lima Franco, Marcelo Gomes de Almeida, Gustavo Rodamilans de Macêdo, Thaís Torres Pires, Gonzalo Rostán, Gustave G. Lopez,
Mercury (Hg) is a highly toxic pollutant that poses in risk several marine animals, including green turtles (Chelonia mydas). Green turtles are globally endangered sea turtle species that occurs in Brazilian coastal waters as a number of life stage classes (i.e., foraging juveniles and nesting adults). We assessed total Hg concentrations and isotopic signatures (13C and 15N) in muscle, kidney, liver and scute of juvenile green turtles and their food items from two foraging grounds with different urban ...
Tópico(s): Marine animal studies overview
2015 - Elsevier BV | Environmental Pollution
Produção Nacional
Revisado por pares
Graziele Pereira Oliveira, André T. Fernandes, Felipe Lopes de Assis, Pedro Augusto Alves, Ana Paula Luiz, Leandra Barcelos Figueiredo, Cláudia Maria Costa de Almeida, Carlos Eurico Pires Ferreira Travassos, Giliane de Souza Trindade, Jônatas Santos Abrahão, Erna Geessien Kroon,
Bovine vaccinia (BV) is an emerging zoonosis caused by the Vaccinia virus (VACV), genus Orthopoxvirus (OPV), Poxviridae family. In general, human cases are related to direct contact with sick cattle but there is a lack of information about human-to-human transmission of VACV during BV outbreaks. In this study, we epidemiologically and molecularly show a case of VACV transmission between humans in São Francisco de Itabapoana County, Rio de Janeiro state. Our group collected samples from the patients, ...
Tópico(s): Bacillus and Francisella bacterial research
2014 - American Society of Tropical Medicine and Hygiene | American Journal of Tropical Medicine and Hygiene
Produção Nacional
Revisado por pares
Felipe J. Aidar, Filipe Manuel Clemente, Luiz Fernandes de Lima, Dihogo Gama de Matos, Alexandre Reis Pires Ferreira, Anderson Carlos Marçal, Osvaldo Costa Moreira, Alexandre Bulhões-Correia, Paulo Francisco de Almeida‐Neto, Alfonso López Díaz-de-Durana, Eduardo Borba Neves, Breno Guilherme de Araújo Tinôco Cabral, Víctor Machado Reis, Nuno Domingos Garrido, Pantelis Τ. Nikolaidis, Beat Knechtle,
Variable resistance training has recently become a component of strength and conditioning programs.This randomized counterbalanced cross-over study aimed to investigate the use of elastic bands (EB) and the traditional method (TRAD) and force indicators in a training session.12 Paralympic athletes (age: 28.60 ± 7.60 years) participated in this three-week study. In the first week, the participants were familiarized with EB and TRAD and were tested for maximal repetition (1-RM). The research occurred in ...
Tópico(s): Lower Extremity Biomechanics and Pathologies
2021 - Multidisciplinary Digital Publishing Institute | Sports
Produção Nacional
Revisado por pares
Luíz Bruner de Miranda, Ilson Carlos Almeida da Silveira, Felipe Pires Alvarenga Fernandes, Leandro Ponsoni, Thiago Podadera Costa,
The results obtained in the August and December 2003, August 2004 and January 2005 oceanographic campaigns in the northern region of the Todos os Santos Bay (lat. 12º44.5'S; long. 038º35.00'W) between the Madre de Deus and Maré islands are analyzed. Instruments of continuous and discrete samplings were used to measure hydrographic properties currents and tides. The water mass of the northern region of the bay is forced by semidiurnal and mesotides of form number 0.08 and the lunar component M2 height ...
Tópico(s): Marine and coastal ecosystems
2011 - UNIVERSIDADE DE SÃO PAULO | Brazilian Journal of Oceanography
Produção Nacional
Revisado por pares
Henrique Fernandes de Oliveira, André Luiz Lopes Sampaio, Carlos Augusto Costa Pires de Oliveira,
Ear diseases are illnesses which represent a relevant group of morbidity. Otitis media, for instance, still is a public health problem today.To correlate hospital morbidity of ear diseases according to data from the Information Technology Department of the Public Health Care System -SUS (DATASUS), through the Hospital Information System (SIH) with the Human Development Index (IDH) from each unit of the federation. To assess the use of this official data in the creation of otologic public health care ...
Tópico(s): Otolaryngology and Infectious Diseases
2011 - Elsevier BV | Brazilian Journal of Otorhinolaryngology
Produção Nacional
Revisado por pares
Frederico Augusto Pires Fernandes, Stênio Cristaldo Heck, George E. Totten, Luíz Carlos Casteletti,
Abstract Boronizing is used to obtain very high hardness and wear resistance on ferrous and non-ferrous materials and some super alloys. The process can be carried out in solid, liquid, or gaseous medium. In this work, samples of AISI 1060 steel were treated by the pack boriding method during 2 and 4 h at 900 and 1000°C. Optical microscopy, x-ray diffraction, and micro-hardness analyses were conducted and wear tests were performed using a micro-wear machine with a fixed-ball configuration. The pack ...
Tópico(s): Metal Alloys Wear and Properties
2013 - ASM International | Materials Performance and Characterization
Produção Nacional
Revisado por pares
Gustavo Subtil Magalhães Freire, André Luiz Lopes Sampaio, Rafaela Aquino Fernandes Lopes, Márcio Nakanishi, Carlos Augusto Costa Pires de Oliveira,
Objective To evaluate the use of ear endoscopy in the postoperative management of open mastoidectomy cavities, and to test whether ear endoscopy improves inspection and cleaning compared with ear microscopy. Methods Prospective study. Thirty-two ears were divided into two groups: group 1, examination and cleaning of mastoid cavities under endoscopic visualization after microscopic standard ear cleaning; group 2, examination and cleaning of mastoid cavities under microscopic visualization after endoscope- ...
Tópico(s): Ear and Head Tumors
2018 - Public Library of Science | PLoS ONE
Produção Nacional
Revisado por pares
Igor Denizarde Bacelar Marques, Luiz Sérgio Azevedo, Lı́gia Camera Pierrotti, Renato A. Caires, Victor Augusto Hamamoto Sato, Lílian Pires de Freitas do Carmo, Gustavo Fernandes Ferreira, C. Gamba, Flávio Jota de Paula, William Carlos Nahas, Elias David‐Neto,
Abstract Background Among kidney transplant recipients ( KTR s), tuberculosis is one of the most common opportunistic infections and is associated with high morbidity and mortality. The aim of this study was to describe the incidence, clinical features, and prognosis of tuberculosis in KTR s. Methods Retrospective single‐center observational study involving all cases of tuberculosis in KTR s between 2000 and 2010. Results Of the 1549 KTR s evaluated, 43 (2.8%) developed tuberculosis, translating to ...
Tópico(s): Tuberculosis Research and Epidemiology
2013 - Wiley | Clinical Transplantation
Produção Nacional
Revisado por pares
Luíz Carlos Casteletti, Eduardo Augusto Brefere Arnoni, Amadeu Lombardi Neto, Frederico Augusto Pires Fernandes, George E. Totten,
The high velocity oxygen fuel (HVOF) thermal spray process produces highly wear and/or corrosion resistant coatings. Tungsten carbide with a metallic binder is often used for this purpose. In this work, tungsten carbide coatings containing cobalt or nickel binder were produced by HVOF and characterised by optical and electron microscopy, hardness and a dry sand/rubber wheel abrasion test. The HVOF process produced dense coatings with low porosity levels and high hardness. The wear resistance of the ...
Tópico(s): Diamond and Carbon-based Materials Research
2010 - Maney Publishing | Surface Engineering
Produção Nacional
Revisado por pares
Henrique Fernandes de Oliveira, André Luiz Lopes Sampaio, Carlos Augusto Costa Pires de Oliveira, María Cristina Triguero Veloz Teixeira, Lídia Araújo Miranda, Daniel Araújo Miranda,
To measure the airway obstruction caused by adenoid hypertrophy in the sitting and recumbent positions in search of hypothesized differences. Forty eight children between the ages of 2 and 12 years who sought the department of otorhinolaryngology spontaneously complaining of snoring and/or nasal obstruction. Children could be either male or female and belong to any social or racial group. Patients underwent nasal videoendoscopy sitting and lying performed by the same investigator. An image of the ...
Tópico(s): Congenital Ear and Nasal Anomalies
2012 - Elsevier BV | International Journal of Pediatric Otorhinolaryngology