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AS CLÁSSICAS HIDRAZONAS COMO REVELADORES DE IMPRESSÕES DIGITAIS: UMA PROPOSTA DE QUÍMICA ORGÂNICA EXPERIMENTAL
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Lima, Nathalia P. K.

; Rosa, Bruno N.

; Poletti, Tais

; Moreira, Bruna C.

; Leitzke, Amanda F.

; Mariotti, Kristiane C.

; Carreño, Neftalí L.V.

; Pereira, Cláudio M. P.

Química Nova

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feb 2023, Volume 46 N. 2 Pages 215 - 221

Abstract: Pt | Text: Pt | PDF: Pt

Fingermark dusting powders are an important tool of forensic practitioners, being a first-choice process for most crime scene investigators. The development of new products is of utmost importance for forensic science. Hydrazones comprise compounds derived from ketones or aldehydes in reaction with hydrazines. These reactions are widely studied in organic chemistry because of the versatility of these compounds in organic synthesis. The study of these reactions leads to the understanding of the nucleophilicity of hydrazines, as well as the electrophilicity of aldehydes and ketones. The present work presents one proposal of experimental organic chemistry, aiming at a new application of this classic class of organic substances in forensic chemistry, specifically as a developer of latent fingermarks due to the variations of the color of the compounds, with spectra ranging in a range from 250 to 500 nm. These compounds were identified by Infrared Spectroscopy, Ultraviolet-Visible Spectroscopy and Mass Spectrometry. The development on glass surfaces demonstrated the potential application of these compounds in everyday life situations.

https://doi.org/10.21577/0100-4042.20170964

The Prediction of Inadequate Colon Capsule Cleansing: A Cohort Selection Guided by CC-CLEAR
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Magalhães, Rui de Sousa

; Carvalho, Pedro Boal

; Rosa, Bruno

; Moreira, Maria João

; Cotter, José

GE-Portuguese Journal of Gastroenterology

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oct 2022, Volume 29 N. 5 Pages 13 - 23

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

Abstract Introduction: In order to optimize the rate of adequate cleansing in colon capsule, it may be important to identify risk factors that can predict a suboptimal colon preparation. Aim: To define predictive factors for inadequate bowel preparation in colon capsule, according to CC-CLEAR (Colon Capsule CLEansing Assessment and Report). Methods: Retrospective, single center, cohort study. Patients’ demographics, data, and quality of bowel preparation, according to CC-CLEAR, were collected retrospectively. A univariate analysis tested the association between covariables and the outcome, inadequate cleansing. The statistically significant variables were included in multivariable logistic binary regression, and a receiver operating characteristic curve (ROC) assessment was performed. Results: We included 167 consecutive colon capsules. Sixty-eight percent (n = 114) of patients were female, with a mean age of 64 years. The main indication for colon capsule was previous incomplete colonoscopy, in 158 patients (94.6%). The colon capsules cleansing was graded as good or excellent in 96 patients (57.5%) and as inadequate in 71 (42.5%), according to CC-CLEAR. The variables inadequate previous colon cleansing (OR adjusted 41.72 [95% CI 12.57-138.57], p value < 0.001); chronic laxative (OR adjusted 4.86 [95% CI 1.08-21.79], p value = 0.039); antidepressant (OR adjusted 5.00 [95% CI 1.65-15.16], p value = 0.004), and impaired mobility (OR adjusted 5.54 [95% CI 1.17-26.31], p value = 0.031) were independently associated with the outcome inadequate cleansing, after adjusting for confoundment. The model presented an excellent discriminative power towards the outcome variable (AUC ROC 0.937 [CI 95% 0.899-0.975], p value < 0.001). Conclusion: A previous inadequate colon cleansing, the use of chronic laxative and antidepressant, or impaired mobility are predictors of inadequate colon capsule cleansing, as assessed by the CC-CLEAR. These 4 predictors come together as a model enabling an accurate categorization of the patients at major risk of inadequate bowel preparation for capsule colonoscopy, with an excellent discriminative power and performance, which seems useful for the selection of patients for tailored optimization of the colon cleansing protocol.

Resumo Introdução: Com o intuito de otimizar a taxa de preparações intestinais adequadas em cápsula do cólon, poderá ser importante identificar fatores de risco preditivos de preparações sub-ótimas. Objetivo: Definir fatores preditivos de preparação intestinal inadequada em cápsula do colon, de acordo com a CC-CLEAR (Colon Capsule CLEansing Assessment and Report). Métodos: Estudo de coorte retrospetivo, no qual as variáveis demográficas, clínicas e a qualidade de preparação intestinal, de acordo com a CC-CLEAR, foram colhidas retrospetivamente. Uma análise univariada testou a associação entre as covariáveis e a variável outcome - preparação intestinal inadequada. As variáveis estatisticamente significativas foram incluídas num modelo de regressão logística binária e performance testada com a realização de curva ROC. Resultados: Incluímos 167 cápsulas do colon consecutivas. Sessenta e oito por cento (n = 114) eram do sexo feminino, com idade média de 64 anos. A principal indicação para cápsula do colon foi uma colonoscopia prévia incompleta, em 158 indivíduos (94.6%). As preparações intestinais em cápsula do colon foram classificadas como boas ou excelentes em 96 indivíduos (57.5%) e como inadequadas em 71 (42.5%), de acordo com a CC-CLEAR. As variáveis preparação cólica prévia inadequada [OR ajustado 41.72 (95% CI 12.57-138.57) valor p < 0.001]; uso crónico de laxante [OR ajustado 4.86 (95% CI 1.08-21.79) valor p = 0.039]; antidepressivo [OR ajustado 5.00 (95% CI 1.65-15.16) valor p = 0.004] e défice de mobilidade [OR ajustado 5.54 (95% CI 1.17-26.31) valor p = 0.031] foram independentemente associadas ao outcome, preparação intestinal inadequada, após o ajuste para o confundimento. O modelo apresentou um excelente poder discriminativo em relação ao outcome [AUC ROC 0.937 (CI95% 0.899-0.975) valor p < 0.001]. Conclusão: Umapreparação cólica prévia inadequada, o uso crónico de laxantes e antidepressivos e um défice de mobilidade são preditores de preparação intestinal inadequada em cápsula do cólon, de acordo com a CC-CLEAR. Estas 4 variáveis formam um modelo que permite a categorização, com excelente acuidade, de indivíduos com risco elevado para preparação intestinal ina dequada em cápsula do colon, o que parece ser útil para uma otimização caso a caso do protocolo de preparação intestinal.

https://doi.org/10.1159/000518588

A Química de Produtos Naturais aplicados a reveladores de impressões digitais latentes
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Leitzke, Amanda F.

; Berneira, Lucas M.

; Rosa, Bruno N. da

; Moreira, Bruna C.

; Mariotti, Kristiane de C.

; Venzke, Dalila

; Pereira, Claudio M. P.

Química Nova

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2022, Volume 45 N. 4 Pages 424 - 434

Abstract: Pt | Text: Pt | PDF: Pt

Natural formulations have attracted great interest of many researchers regarding their use as latent fingermark developers powders due their important characteristics as the presence of natural pigments in these materials that offer a good contrast on the applied surface and also luminescent properties, which facilitates the visualization of minutiae in problematic substrates such as multicolored surfaces. In addition, natural powders present low toxicity, are widely available and economically viable. In this sense, the present work addresses the application of several natural products to enhance fingermarks visualization. The natural products were obtained from various sources such as seaweed, spices as well as other sources such as terrestrial and herbaceous plants. The evaluated powders are composed by compounds as chlorophyll, phycocyanins, curcumins, lawsone, fatty acids, coumarins, flavonoids and terpenes. These powders showed good adhesion to latent fingermarks, with similar or superior efficiency to the available powders on different surfaces with clear visualization of the minutiae. The development of new powders applicable to papiloscopy are extremely important since the conventional available powders, besides being expensive, are imported and within the national context there is a great lack of these revealing materials within forensic investigations by the Federal Police and in laboratories of research.

https://doi.org/10.21577/0100-4042.20170843

O Efeito da Máscara Cirúrgica de Proteção Respiratória nos Marcadores Fisiológicos de Desempenho Aeróbio em um Corredor Recreacional
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Prado, Danilo Marcelo Leite do

; Silvino, Valmir Oliveira

; Vieira, Ewerton Gomes

; Rosa, Bruno Viana

; Silva, Acácio Salvador Veras e

; Santos, Marcos Antonio Pereira dos

Arquivos Brasileiros de Cardiologia

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jul 2021, Volume 117 N. 1 Pages 23 - 28

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

https://doi.org/10.36660/abc.20200792 409 downloads

EXTRACTION AND IDENTIFICATION OF FORMULATIONS OF ANABOLIC ANDROGENIC STEROIDS: A FORENSIC EDUCATIONAL APPROACH
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Berneira, Lucas M.

; Ritter, Marina

; Silva, Caroline C. da

; Poletti, Tais

; Passos, Luan F.

; Rosa, Bruno N. da

; Santos, Marco A. Z. dos

; Pereira, Claudio M. P. de

Química Nova

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dec 2020, Volume 43 N. 10 Pages 1505 - 1509

Abstract: En | Text: En | PDF: En

The use of anabolic androgenic steroids is largely restricted worldwide since they are associated with innumerous side effects and health damage. However, apprehensions of formulations of anabolic agents have been extensively increasing throughout the world, making their analysis a common task in the forensic field. In this sense, a set of three experiments was developed and applied to undergraduate students of Forensic Chemistry dealing with visual inspection of apprehended formulations of anabolic androgenic steroids as well as chemical identification by Infrared Spectroscopy and Gas Chromatography-Mass Spectrometry. Moreover, the classroom evaluated the extraction of steroidal active ingredients by ultrasonic and microwave-assisted extraction. The experimental procedures allied with the theory behind these topics provided an important background to the students on distinct extraction methods and analytical techniques used in the analysis of anabolic agents. Finally, the classroom was led to critically evaluate and interpret the results as well as to question the adequacy of experimental methods used in forensic analysis to stimulate their critical thinking.

https://doi.org/10.21577/0100-4042.20170607 196 downloads

Small Bowel Enteroscopy: A Joint Clinical Guideline from the Spanish and Portuguese Small Bowel Study Groups
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Pérez-Cuadrado-Robles, Enrique

; Pinho, Rolando

; Gonzalez, Begoña

; Ferro, Susana Mão de

; Chagas, Cristina

; Delgado, Pilar Esteban

; Carretero, Cristina

; Figueiredo, Pedro

; Rosa, Bruno

; Lledó, Javier García

; Nogales, Óscar

; Ponte, Ana

; Andrade, Patrícia

; Juanmartiñena-Fernández, Jose Francisco

; San-Juan-Acosta, Mileidis

; Lopes, Sandra

; Prieto-Frías, César

; Egea-Valenzuela, Juan

; Caballero, Noemí

; Valdivieso-Cortazar, Eduardo

; Cardoso, Hélder

; Gálvez, Consuelo

; Almeida, Nuno

; Barrera, Pilar Borque

; Gómez-Rodríguez, Blas José

; Ceballos, Francisco Sánchez

; Bernardes, Carlos

; Alonso, Pedro

; Argüelles-Arias, Federico

; Saraiva, Miguel Mascarenhas

; Pérez-Cuadrado-Martínez, Enrique

GE-Portuguese Journal of Gastroenterology

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oct 2020, Volume 27 N. 5 Pages 324 - 335

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

Estas recomendações baseadas na evidência detalham o uso da enteroscopia assistida por dispositivo no manejo clínico das doenças do intestino delgado. Um conjunto de Gastrenterologistas diferenciados em patologia do intestino delgado foi selecionado pelos grupos de estudos Espanhol e Português de intestino delgado para rever a evidência disponível sobre as principais indicações desta técnica, o seu papel nos algoritmos de manejo de cada indicação e sobre o seu rendimento diagnóstico e terapêutico. Foi gerado um conjunto de recomendações pelos autores.

The present evidence-based guidelines are focused on the use of device-assisted enteroscopy in the management of small-bowel diseases. A panel of experts selected by the Spanish and Portuguese small bowel study groups reviewed the available evidence focusing on the main indications of this technique, its role in the management algorithm of each indication and on its diagnostic and therapeutic yields. A set of recommendations were issued accordingly.

https://doi.org/10.1159/000507375 148 downloads

Microwave Assisted Synthesis of Thiocarbamoylpyrazoles and Application as an Alternative Latent Fingermark Developers
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Rosa, Bruno N. da

; Venzke, Dalila

; Poletti, Taís

; Lima, Nathalia P. K. de

; Camacho, Jeanifer T.

; Mariotti, Kristiane C.

; Santos, Marco A. Z. dos

; Pizzuti, Lucas

; Carreño, Neftalí L. V.

; Pereira, Claudio M. P.

Journal of the Brazilian Chemical Society

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jun 2020, Volume 31 N. 6 Pages 1327 - 1331

Abstract: En | Text: En | PDF: En

Fingerprints are unique to each individual, contributing to human identification in forensic cases. The powder technique being widely used is considered one of the most important in latent fingermarks analysis. In this sense, the present work aimed to synthesize 1-thiocarbamoyl-4,5-dihydro-1H-pyrazoles and apply them as powder agents to develop latent fingermarks. The compounds were prepared from an effective and green synthesis via the condensation of chalcones with thiosemicarbazide in ethanol under microwave irradiation. Pyrazoles were tested and compared with a standard white powder (Sirchie®) on glass surfaces using sebaceous and natural fingermarks so that molecule 2c has been shown to be more promising providing image clarity. The derivatives of pyrazoles were promising as an alternative latent fingermark, presenting high quality images for fingermarks, proving to be a great tool for forensic sciences.

https://doi.org/10.21577/0103-5053.20200014 285 downloads

Portuguese Society of Gastroenterology Consensus on the Diagnosis and Management of Hemorrhoidal Disease
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Salgueiro, Paulo

; Caetano, Ana Célia

; Oliveira, Ana Maria

; Rosa, Bruno

; Mascarenhas-Saraiva, Miguel

; Ministro, Paula

; Amaro, Pedro

; Godinho, Rogério

; Coelho, Rosa

; Gaio, Rúben

; Fernandes, Samuel

; Fernandes, Vítor

; Castro-Poças, Fernando

GE-Portuguese Journal of Gastroenterology

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apr 2020, Volume 27 N. 2 Pages 90 - 102

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

A doença hemorroidária é uma patologia prevalente com repercussões consideráveis na qualidade de vida dos doentes. No entanto, muita da prática clínica relacionada com a doença hemorroidária é baseada em conhecimentos sem evidência científica e apoiada largamente por uma experiência empírica por parte do médico que lida com esta patologia. À semelhança do que tem sido feito noutros países, o objetivo deste consenso foi estabelecer statements suportados por evidência científica sólida e cuja finalidade será o de uniformizar e orientar o diagnóstico e tratamento da doença hemorroidária quer na população em geral quer em grupos particulares de doentes.

Hemorrhoidal disease (HD) is a frequent health problem with considerable repercussions on patients’ quality of life. However, much of the clinical practice related to HD is based on knowledge without scientific evidence and supported largely by empirical experience of the physician who deals with this pathology. As in other countries, the goal of this consensus is to establish statements supported by solid scientific evidence and whose purpose will be to standardize and guide the diagnosis and management of HD both in the general population and in some particular groups of patients.

https://doi.org/10.1159/000502260 207 downloads

Adolescents' healthy lifestyle
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Marques, Adilson

; Loureiro, Nuno

; Avelar-Rosa, Bruno

; Naia, Ana

; Matos, Margarida Gaspar de

Jornal de Pediatria

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apr 2020, Volume 96 N. 2 Pages 217 - 224

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

Resumo Objetivo Com o uso de uma amostra ampla e representativa de adolescentes de 37 países, analisar como a idade muda o estilo de vida saudável dos adolescentes. Métodos Participaram 148.839 adolescentes provenientes da pesquisa Health Behavior in School-aged Children, de 2010. Foi elaborado um escore composto de um estilo de vida saudável, com a combinação de atividade física diária, consumo diário de frutas e vegetais, menos de duas horas diárias de comportamento sedentário baseado em tempo de tela, abstinência de álcool e abstinência de produtos de tabaco. As medidas do estilo de vida saudável foram baseadas em autorrelato. Resultados Obtiveram um escore perfeito no estilo de vida saudável 4,7% dos meninos e 4,4% das meninas de 11 anos, 3% dos meninos e 2% das meninas de 13 anos e 1,5% dos meninos e 0,8% das meninas de 15 anos. Com o aumento da idade, a prevalência de adolescentes com estilo de vida saudável diminuiu. Em 37 países e regiões, a prevalência de comportamentos saudáveis diminuiu linearmente entre o início da adolescência e os 15 anos. Conclusões Em geral, os adolescentes não têm um estilo de vida saudável. Os resultados deste estudo destacam que ainda há muito trabalho a ser feito na promoção de estilos de vida saudáveis e na conscientização dos adolescentes sobre os riscos potenciais para o seu estado de saúde.

Abstract Objective: Using a wide and representative sample of adolescents from 37 countries, this study aimed to analyze how age changes adolescents' healthy lifestyle. Methods: The study included 148,839 adolescents who participated in the Health Behavior in School-aged Children 2010 survey. A composite score of a healthy lifestyle was created using the combination of daily physical activity, daily fruit and vegetable consumption, <2 h daily on screen-based behaviors, abstinence from alcohol, and abstinence from tobacco products. Healthy lifestyle measures were based on self-report. Results: 4.7% of boys and 4.4% of girls aged 11 years, 3% of boys and 2% of girls aged 13 years, and 1.5% of boys and 0.8% of girls aged 15 scored perfectly on the healthy lifestyle score. As age increased, the prevalence of adolescents with a healthy lifestyle decreased. In 37 countries and regions, the prevalence of healthy behaviors decreased linearly between early adolescence and the age of 15 years. Conclusions: In general, adolescents do not have a healthy lifestyle. Results from this study highlight that there is still much work to be done in promoting healthy lifestyles and to raise awareness among adolescents of the potential risk to their health status.

https://doi.org/10.1016/j.jped.2018.09.002 1405 downloads

10.

Increased atmospheric CO2 changes the photosynthetic responses of Acrocomia aculeata (Arecaceae) to drought
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Rosa, Bruno Luan

; Souza, João Paulo

; Pereira, Eduardo Gusmão

Acta Botanica Brasilica

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sep 2019, Volume 33 N. 3 Pages 486 - 497

Abstract: En | Text: En | PDF: En

ABSTRACT Water availability is the main factor that explains current patterns of palm abundance. However, the interaction between water stress and increasing atmospheric CO2 concentrations caused by climatic change and its effects on palm physiology remain poorly known. Macauba palm is a widespread Neotropical species commonly found in ecosystems subjected to seasonal drought and has potential use in oil production. The present work investigated the influence of increased CO2 concentrations on photosynthetic responses to drought in macauba palm plants. Exposure to increased CO2 concentrations led to up-regulation of photosynthesis through higher stomatal conductance and improved light and water use efficiency. Macauba palm plants under water stress, irrespective of CO2 concentration, were able to maintain constant levels of proline and chlorophyll, while preventing oxidative damage. Plants grown at higher CO2 concentrations were more capable of recovering from drought due to higher Rubisco carboxylation rate (Vc max) and electron transport rate (J max), which prevented a reduction in total dry mass at the end of the stress period. Stomatal control of photosynthesis, coupled with the prevention of severe damage under stress, would allow efficient biomass production by the macauba palm under future scenarios of climate change.

https://doi.org/10.1590/0102-33062019abb0056 1419 downloads

11.

Elevated atmospheric CO2 concentration improves water use efficiency and growth of a widespread Cerrado tree species even under soil water deficit
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Souza, João Paulo

; Melo, Nayara Magry Jesus

; Halfeld, Alessandro Dias

; Vieira, Kamilla I. C.

; Rosa, Bruno Luan

Acta Botanica Brasilica

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sep 2019, Volume 33 N. 3 Pages 425 - 436

Abstract: En | Text: En | PDF: En

ABSTRACT Changes in atmospheric CO2 levels are accompanied by ecological interactions involving other environmental factors, such as drought, which can severely alter the water balance of plants, thereby influencing sap flow, gas exchange, and plant growth. The objective of this study was to evaluate the water use economy, leaf gas exchange, and growth of young plants of the species Lafoensia pacari subjected to high concentrations of atmospheric CO2 ([CO2]) and soil water deficit. Increased vapor pressure deficit was observed from 1200 to 1800 hours. Plants under elevated [CO2] exhibited increased leaf photosynthesis, resulting in improved growth. Specific leaf area was lower in plants under high [CO2], mainly after soil water deficit treatment. Daily irrigated plants growing under ambient [CO2] had higher stem sap flow velocity (cm h-1) and hourly sap flow (kg h-1), mainly during the hottest hours of the day, than plants under high [CO2]. Improved water use by plants growing under high [CO2] may result in increased availability of water in the soil, partially offsetting future drought events and extending the growth period.

https://doi.org/10.1590/0102-33062018abb0272 1065 downloads

12.

APLICAÇÃO DE CONDIMENTOS NA REVELAÇÃO DE IMPRESSÕES DIGITAIS LATENTES: UM EXPERIMENTO NO ENSINO DE QUÍMICA
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Nicolodi, Caroline

; Rosa, Bruno Nunes da

; Silva, Caroline Carapina da

; Berneira, Lucas Moraes

; Pacheco, Bruna S.

; Poletti, Tais

; Venzke, Dalila

; Mariotti, Kristiane C.

; Pereira, Claudio M. P.

Química Nova

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aug 2019, Volume 42 N. 8 Pages 962 - 970

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

The development of fingermarks is an important step in criminal cases. Latent fingermarks require applications of reagents to be developed before they can be visualized. Different techniques to enhance fingermarks’ visualization have been employed and the powder dusting is the most common among them. The use of food spices as latent fingermarks developers could be an alternative method of experiment in chemistry teaching, considering that they are low cost and accessible. In this work, an experimental methodology was developed and can be applied in undergraduate chemistry teaching for the extraction of components from food spices, their chromatographic analysis and application on the development of latent fingermarks.

https://doi.org/10.21577/0100-4042.20170405 1394 downloads

13.

DESENVOLVIMENTO DE METODOLOGIA DE REVELAÇÃO DE IMPRESSÃO DIGITAL LATENTE COM CHALCONAS
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Balsan, Jaqueline D.

; Rosa, Bruno N.

; Pereira, Claudio M. P.

; Santos, Clarissa M. M.

Química Nova

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aug 2019, Volume 42 N. 8 Pages 845 - 850

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

Fingerprints are unique for each individual contributing to human identification in forensic cases. Visualization of latent fingerprints usually involves the use of a chemical substance that creates a contrast between fingerprint residues and the surface on which the print was deposited. Commercial powders used as fingerprint developers by papilloscopy have relatively high costs due to their importation and chemical composition. (E-1,3-diphenylprop-2-en-1-one, E-1-phenyl-3-(4-methylphenyl))prop-2-en-1-one but only one compound was highlighted, E-3-(3-nitrophenyl)-1-phenylprop-2-em-1-one). The composite was selected for its suitable properties (adhesion and texture) of visualization of the digital, providing the obtaining of clear revelations with identification of minutiae and singular points of the fingerprints. Identification, magnetic resonance, granulometry and contact surface evaluation with chalcones such as sebaceous and natural deposition with development in different materials such as plastic, metal and glass were applied for the application of fingerprint development. The compound was tested in eight volunteers regardless of gender and age, presenting satisfactory results for fingerprint development on glass and metal surfaces.

https://doi.org/10.21577/0100-4042.20170399 2273 downloads

14.

Polidocanol Foam: A Breath of Fresh Air for the Treatment of Internal Hemorrhoids
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Rosa, Bruno

GE-Portuguese Journal of Gastroenterology

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jun 2019, Volume 26 N. 3 Pages 153 - 154

Abstract: En | Text: En | PDF: En

https://doi.org/10.1159/000493440 216 downloads

15.

Learning Hepatobiliary Anatomy through the Virtual 3d Anatomy Table
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Rosa, Bruno Rodrigues

; Correia, Mauro Monteiro

; Zidde, Daniel Hetti

; Thuler, Luiz Claudio Santos

; Brito, Ana Paula Coutinho Barros de

; Biolchini, Jorge Calmon de Almeida

Revista Brasileira de Educação Médica

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2019, Volume 43 N. 1 Pages 615 - 622

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

RESUMO Objetivo Avaliar a eficácia da mesa anatômica virtual 3D como recurso complementar ao aprendizado da anatomia hepatobiliar por estudantes de graduação em Medicina. Metodologia Trata-se de estudo randomizado e controlado que comparou a aprendizagem anatômica de estruturas hepatobiliares, apoiada por um modelo real versus por um modelo virtual, ambos tridimensionais (3D), por parte de estudantes de medicina. Avaliou-se também a percepção dos estudantes quanto aos recursos utilizados para o ensino da anatomia. Os alunos foram submetidos a um pré-teste e a duas avaliações após a aplicação das intervenções. Resultados Globalmente, tanto a mesa anatômica virtual 3D quanto o fígado real aumentaram o conhecimento dos estudantes sobre a anatomia hepatobiliar em relação ao conhecimento prévio deles (p = 0,001 e p = 0,01, respectivamente para a segunda e terceira avaliação). Na comparação longitudinal entre o pré-teste e a segunda avaliação (anatomia hepatobiliar e segmentação de Couinaud), esse aumento foi significantemente maior no grupo alocado para o fígado real (p = 0,002); já na comparação do pré-teste com a terceira avaliação (inclusão de órgãos anexos na mesa anatômica ou no fígado real), o aumento do conhecimento foi significantemente maior no grupo alocado para a mesa anatômica (p = 0,04). A percepção de satisfação dos participantes quanto aos recursos de aprendizagem foi considerada muito boa, com percentual mínimo de satisfação de 80%. Conclusão A mesa anatômica virtual 3D forneceu mais conhecimento de anatomia hepatobiliar que um fígado real para estudantes de medicina, em relação ao conhecimento prévio deles sobre essas estruturas. Na comparação transversal das avaliações pós-instrução, não houve diferença entre as duas intervenções. Além disso, a plataforma 3D teve um impacto positivo no nível de satisfação dos participantes do estudo. Este estudo mostra que a mesa anatômica virtual 3D tem potencial para melhorar tanto a compreensão quanto o interesse dos estudantes de medicina pela anatomia. Recomenda-se, no entanto, que futuros protocolos como este sejam realizados com amostras maiores e explorando outras estruturas anatômicas.

ABSTRACT Objective to evaluate the effectiveness of the 3D virtual anatomical table as a complementary resource to the learning of the hepatobiliary anatomy by undergraduate medical students. Method A randomized controlled study comparing the anatomical learning of hepatobiliary structures, supported by a real model versus a virtual model, both three-dimensional (3D), by undergraduate medical students. The students’ perception of the resources used to teach anatomy was also evaluated. The students were submitted to a pre-test and to two evaluations after the interventions were applied. Results Overall, both the 3D virtual anatomical table and the real liver increased students’ knowledge of the hepatobiliary anatomy in relation to their previous knowledge (p = 0.001 and p = 0.01, respectively for second and third evaluations). In the longitudinal comparison between the pre-test and the second evaluation (hepatobiliary anatomy and Couinaud’s segmentation), this increase was significantly higher in the group allocated to the real liver (p = 0.002); in the comparison of the pre-test with the third evaluation (inclusion of adjacent organs in the anatomical table or in the real liver), the increase in knowledge was significantly higher in the group allocated to the anatomical table (p = 0.04). The perception of participants’ satisfaction regarding the learning resources was considered very good, with a minimum percentage of satisfaction of 80%. Conclusion the 3D virtual anatomical table provided more hepatobiliary anatomy knowledge than a real liver for undergraduate medical students, in comparison to their previous knowledge about these structures. In the cross-sectional comparison of the post-instruction evaluations, there was no difference between the two interventions. Moreover, the 3D platform had a positive impact on the level of satisfaction of study participants. This study shows that the 3D virtual anatomical table has the potential to improve both medical students’ understanding and interest in anatomy. It is recommended, however, that future protocols such as this be carried out with larger samples and exploring other anatomical structures.

https://doi.org/10.1590/1981-5271v43suplemento1-20190033.ing 1350 downloads

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