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Resumo Introdução: Avaliação e manejo adequados da dor têm se tornado uma preocupação cada vez maior dos profissionais de saúde. Segundo a definição de cuidados paliativos da Organização Mundial da Saúde, são importantes a identificação precoce, a avaliação e o tratamento da dor. Objetivo: Este estudo teve como objetivos desenvolver e avaliar um aplicativo para dispositivos móveis voltado para o ensino de abordagem da dor em cuidados paliativos. Método: Foi desenvolvido um aplicativo móvel, seguido de sua utilização por médicos residentes e de avaliação qualiquantitativa prospectiva. Aplicou-se o teste de conhecimento. Obtiveram-se a usabilidade do aplicativo, por meio da System Usability Scale (SUS), e a satisfação, por meio do Net Promoter Score (NPS). Os dados foram tabulados no Microsoft Office Excel® e exportados para o software Statistical Package for the Social Sciences (SPSS) versão 20.0 (IBM): na realização das análises, adotou-se uma confiança de 95%. Para a análise qualitativa das avaliações, o conteúdo das respostas foi transcrito e organizado em nuvens de palavras para destacar as ideias centrais. O estudo foi aprovado pelo Comitê de Ética do Centro Universitário Christus. Resultado: Desenvolveu-se o PaliPain App, aplicativo constituído de casos clínicos de pacientes em cuidados paliativos com manifestações de dor, além de questões, vídeos e imagens, disponibilizado nas plataformas Android e iOS. Utilizaram o aplicativo 13 médicos residentes. A média de acertos de questões no pré-teste sobre dor em cuidados paliativos aumentou de 6,08 para 7,54 após manuseio do aplicativo. Na avaliação sobre a usabilidade do aplicativo, obtivemos na SUS uma média de 89,2, acima do nível considerado adequado de 70,0. Na avaliação de satisfação, 54% dos médicos responderam com pontuação 10 à pergunta: "Em uma escala de 0 a 10, quanto você recomendaria o aplicativo PaliPain a um amigo ou colega?". Conclusão: O PaliPain App, desenvolvido e disponibilizado nas plataformas Android e iOS, foi bem avaliado pelos médicos residentes, apresentando ótimos escores de usabilidade e de satisfação. Identificamos que houve ganho de conhecimento, com pontuação média na resolução de questões aumentando de 6,08 para 7,54 após livre uso da aplicação. O PaliPain App pode ser uma ferramenta útil para ensino de abordagem de dor para médicos residentes.
Abstract Introduction: Pain evaluation has become an increasingly relevant concern for healthcare workers. According to the World Health Organization's definition of Palliative Care, early identification, evaluation, and treatment of pain are important. Objective: Developing and rating an app for mobile devices that focuses on teaching the subject of pain management in Palliative Care. Research Methodology: The app was developed as a learning tool and tested by resident physicians while undergoing a qualitative and quantitative prospective evaluation. Mock tests were taken. The usability of the app was rated through the System Usability Scale (SUS), and satisfaction with the app was rated through the Net Promoter Score (NPS). The data was charted by using Microsoft Office Excel ® and was exported to the Statistical Package for the Social Sciences (SPSS) version 20.0 (IBM) software: an analysis was run with a 95% confidence interval. As for the qualitative analysis of the resident physicians' evaluations, all available content was transcribed and properly organized in word clouds in order to highlight the most important pieces of feedback that the physicians presented regarding the app. The study was approved by the Ethics Committee. Main Results: The PaliPain App was developed as a database filled with clinical cases of patients undergoing palliative care who were experiencing varying levels of pain, and also presents analysis of test questions, videos and images. It was made available for the Android and iOS platforms. The average correct answers in a mock test about pain management during palliative care rose from 6.08 to 7.54. Thirteen resident physicians made use of the app. In the evaluation of the app's usability, the average SUS score was 89.2. In the evaluation of user satisfaction, 54% of the resident physicians answered the question "from a scale of 0 to 10, what is the likelihood of you recommending the PaliPan app to a friend or colleague?" with a score of 10. Conclusion: The PaliPain App, developed and available on Android and iOS platforms, was well evaluated by resident physicians, presenting excellent scores for both usability and satisfaction. We identified that there was a gain in knowledge, with an average score in the resolution of questions increasing from 6.08 to 7.54 after free use of the application. The PaliPan app could be a useful tool to teach the subject of pain to resident physicians.
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BACKGROUND: The use of fluids is the most frequently used therapy for circulatory shock. Its inadequate use has adverse effects, requiring hemodynamic goals, highlighting the use of pulse pressure variation due to its high accuracy. One of the problems related to this method is the difficulties in measuring the pulse pressure variation (PPV) in most monitors for clinical use. We assessed the qualitative aspects of perceived usability of a smartphone application (app), which, based on a photograph of the patient's arterial pulse wave, can help measure PPV and help in the diagnosis and management of shock cases. METHODS: To assess the software perceived usability, we used the System Usability Scale (SUS) applied to 30 physicians in 2 tertiary hospitals in Brazil. The software accuracy was measured using a sequence of 3 images with different values ââof pulse pressure variation, comparing the obtained values ââ with the gold standard. The educational interface of the app was evaluated qualitativelyfrom the spontaneous testimonies of the selected test participants.The project was approved by the Research Ethics Committee of Centro Universitário Christus. RESULTS: The analysis showed an average SUS of 86.3 points on a scale of 1-100 (above 80.3 is considered the best in terms of interface). The assessment of the application's accuracy when evaluating pulse pressure variation showed that the average variation of the measurements taken by the participants was small, with a good measure of repeatability and reproducibility. The app's educational interface was qualitatively evaluated, being praised by the users. CONCLUSIONS: It can be concluded that the developed mobile application showed excellent qualitative aspects of perceived usability results. More studies with this app will be required to evaluate the potential to help professionals with hemodynamic evaluation in emergency and intensive care settings.
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Aplicativos Móveis , Humanos , Pressão Sanguínea , Smartphone , Reprodutibilidade dos Testes , HemodinâmicaRESUMO
Resumo: Introdução: A utilização de protocolos de ultrassonografia revolucionou o atendimento na medicina de emergência e pode auxiliar no diagnóstico de insuficiência respiratória no pronto atendimento. Assim, torna-se importante o treinamento médico para a utilização desses protocolos. Já foi demonstrado também que os aplicativos de smartphone médico têm resultados positivos na prática diária, além de serem uma ferramenta educacional potencialmente valiosa. Objetivo: Dessa forma, o objetivo deste estudo foi desenvolver um aplicativo em ultrassonografia pulmonar de emergência. O BLUE SIM é um aplicativo de celular que simula atendimentos de casos clínicos utilizando o protocolo Bedside Lung Ultrasound in Emergency, o qual pode auxiliar alunos e profissionais da área da saúde a usar a ultrassonografia pulmonar no atendimento da insuficiência respiratória aguda. A hipótese é que o BLUE SIM será um aplicativo usável e aceitável entre os usuários. Método: Após desenvolvido, avaliou-se o aplicativo com 36 voluntários: 18 fisioterapeutas, um médico, sete enfermeiros e dez acadêmicos de Medicina. Analisaram-se a usabilidade e a utilidade de uma aplicação móvel para o sistema iOS, utilizando como referências a escala de usabilidade System Utility Score (SUS) e o modelo de aceitação Technology Acceptance Model (TAM). Os dados obtidos foram tabulados e analisados pelo teste exato de Fisher ou Mann-Whitney. Resultado: Pela aplicação do questionário SUS (usabilidade), o aplicativo obteve um escore de 76,8%. Exclusivamente entre os fisioterapeutas, obteve-se um escore de 75%, não havendo diferença estatística entre o grupo geral de todos os profissionais emergencistas e o grupo somente de fisioterapeutas (p = 0,239). Segundo a análise de percepção de utilidade, 93,9% dos profissionais emergencistas responderam positivamente, enquanto, entre os fisioterapeutas, obteve-se um escore de 88,9% (p = 0,04). Conclusão: O aplicativo desenvolvido foi classificado de utilidade na aprendizagem do diagnóstico de insuficiência respiratória entre os profissionais, contudo eles consideraram que é necessário um treinamento para o uso da ferramenta.
Abstract: Introduction: The use of ultrasound protocols has revolutionized care in emergency medicine and can help in the diagnosis of respiratory failure in emergency care; therefore, medical training for the use of these protocols has become important. It has also been demonstrated that medical smartphone apps have positive results in daily practice, in addition to being a potentially valuable educational tool. Objective: Thus, the objective was to develop an emergency pulmonary ultrasound application. The "BLUE SIM" is a cell phone application that simulates clinical cases using the "Bedside Lung Ultrasound in Emergency" protocol, which can help students and health professionals regarding the use of pulmonary ultrasound in the care of acute respiratory failure. The hypothesis is that the "BLUE SIM" will be a usable and acceptable application among users. Method: After the development, the application was evaluated with a group of 36 volunteers, which included 18 physical therapists and 18 other professionals consisting of physicians, nurses and medical students. The usability and usefulness of a mobile application for the iOS system was analyzed, using the System Utility Score (SUS) usability scale and the Technology Acceptance Model (TAM) as references. The obtained data were tabulated and analyzed using Fisher's exact test or Mann-Whitney test. Result: When applying the SUS questionnaire (usability), the application obtained a score of 76.8%. A score of 75% was obtained exclusively among physical therapists, with no statistical difference between the general group of all emergency professionals and the group of physical therapists only (p=0.239). According to the usefulness perception analysis, 93.9% of the emergency professionals had a positive response, while a score of 88.9% was obtained among physical therapists (p=0.04). Conclusion: It was concluded that the developed application was classified as useful in learning the diagnosis of respiratory failure among health professionals; however, they considered that training is necessary for its use.
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ABSTRACT Objective: To develop and examine the usability of a mobile application aimed at improving knowledge about ocular surface tumors among medical students, general practitioners and ophthalmologists. Methods: A cross-sectional quantitative study was carried out by a multidisciplinary team and developed in three stages: administration of a specific questionnaire to medical students, assessing the demand for the application, creation and development of the application in collaboration with the Technological Innovation Laboratory of Centro Universitário Christus and usability assessment. General practitioners and ophthalmologists were selected to answer the System Usability Scale questionnaire. Data were exported into the Statistical Package for the Social Sciences, version 20.0 Windows, for quantitative analysis. Results: The OncoEye application was developed for the iOS and the Android platforms and included four main menus: Glossary, Patients, Referrals and Queries. Most students (89.9%) considered the development of the application important for wider access to information about the topic. Most students (39.9%) were able to recognize ocular lesions and 26.1% could distinguish between benign and malignant conditions. System Usability Scale questionnaire responses revealed good usability, with an average score of 92.65. Users (100%) described the application as user-friendly and well- integrated. Conclusion: An innovative application for ocular surface tumors was created and developed. The application achieved good levels of acceptance and was described as user-friendly by users.
RESUMO Objetivo: Desenvolver e avaliar a usabilidade de um aplicativo para dispositivos móveis que aprimore o conhecimento de estudantes de medicina e de médicos sobre tumores da superfície ocular. Métodos: Foi realizado estudo transversal e quantitativo por uma equipe multiprofissional, consistindo em três etapas: realização de um questionário específico com estudantes de medicina, avaliando a necessidade de elaboração do aplicativo; criação e desenvolvimento do aplicativo pelo Laboratório de Inovação Tecnológica do Centro Universitário Christus e avaliação de usabilidade. Médicos generalistas e oftalmologistas foram selecionados para responder ao questionário System Usability Scale. Os dados foram exportados para o programa Statistical Package for the Social Sciences, versão 20.0, para Windows para análise quantitativa. Resultados: O aplicativo OncoEye foi desenvolvido com quatro menus principais: Glossário, Pacientes, Encaminhamento e Perguntas. Dentre os estudantes, 89,9% consideraram o desenvolvimento do aplicativo importante para orientação sobre o tema, 39,9% souberam reconhecer lesão ocular, e 26,1% puderam diferenciar lesão ocular maligna ou benigna. As respostas dos usuários à ferramenta System Usability Scale demonstraram boa usabilidade, com pontuação média de 92,65 (87,74 a 97,55). Todos os usuários consideraram o aplicativo de fácil manuseio e bem integrado. Conclusão: Um aplicativo inovador para tumores da superfície ocular foi criado e desenvolvido, apresentando boa aceitação e fácil manuseio pelos usuários.
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Humanos , Oftalmologia/educação , Telemedicina/métodos , Computadores de Mão , Neoplasias Oculares/diagnóstico por imagem , Aplicativos Móveis , Médicos , Estudantes de Medicina , Materiais de Ensino , Informática Médica , Fotografação , Estudos Transversais , Inquéritos e Questionários , Educação Médica/métodos , OftalmologistasRESUMO
INTRODUCTION: Glaucoma is a progressive optic neuropathy that requires continuous monitoring. The purpose of the study was to develop and evaluate the usability of a mobile application, for iOS and Android platforms, containing functionalities to improve patients' knowledge about glaucoma and facilitate their treatment. METHODS: The application was developed by a multidisciplinary team using an adapted version of a co-design methodology. Volunteers were selected, among patients and patients' relatives, from the Instituto Cearense de Oftalmologia, chosen by rational choice sampling, to answer the system usability scale after having prior orientation. The results extracted from the questionnaire were analyzed quantitatively. After grouping by age, a proportions test (z-test) was performed. RESULTS: It was possible to develop an application for mobile devices named "GlaucoCheck." Of the 36 interviewees, the average age was 51 (22-69) years old, 56% were women, and 30.5% had a university degree. The average APP score for usability in the SUS questionnaire was 75.6 (95% CI 74.1-77.2). CONCLUSION: There was an appropriate acceptance of patients to the "GlaucoCheck", as it was considered easy to handle, exhibiting interactive and uncomplicated layout. It was possible to develop an application and to register a positive acceptance by the users, encompassing functions that permits better adherence to treatments and additional knowledge about glaucoma.
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Glaucoma , Aplicativos Móveis , Adulto , Idoso , Feminino , Glaucoma/diagnóstico , Humanos , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto JovemRESUMO
Background: Medical smartphone applications have rendered positive results in daily practice and also serve as potentially valuable educational tools. In orthopedics, radiograph analysis and angle measurements comprise an essential mechanism in the diagnosis, treatment, planning, and evaluation of the results in orthopedic surgery. Purpose: Thus, the present study aimed to evaluate an application for mobile devices for orthopedic doctors and orthopedic residents. The application proposes the analysis and interpretation of radiographic imaging examinations through assessments and angle measurements. In this survey, we analyzed the parameter usability and usefulness of a mobile application for the iOS system, in addition to conducting its validation. Patients and Methods: The application was tested by 26 volunteers: 13 orthopedists and 13 orthopedic residents. Results: After applying the System Utility Score (SUS) questionnaire, which assesses the usability of an application, a score of 84.5 was obtained, a value that represents an A+ rating on the Sauro and Lewis scale. There was no statistically significant difference when comparing the SUS between the orthopedic residents and orthopedists. According to the usefulness perception analysis, 90% of the residents responded positively to the questions, while among orthopedists, the percentage was 75%, denoting a statistically significant difference (p = 0.002). Subsequently, the application underwent validation to assess whether the calculated angle measurements were reliable when compared with those obtained using the goniometer. No significant differences were observed when comparing the angles measured by the two evaluated methods. Conclusion/Clinical Relevance: In conclusion, the developed application can reliably contribute to the measurement of angles in radiographs, assisting in therapeutic decision-making, and may be used as an instrument to promote the teaching and learning processes in orthopedics.
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Aplicativos Móveis , Procedimentos Ortopédicos , Ortopedia , Humanos , Percepção , Exame FísicoRESUMO
Introduction: Anxiety and fear are feelings routinely associated with the dental experience, especially in childhood and adolescence. These have been prominent in the world for many years and are currently considered a public health issue. Since the young population is an assiduous user of virtual inputs, it was sought to develop a mobile application (app) with the function of reducing the levels of dental anxiety in children before dental treatment and evaluate its effectiveness. Materials and Methods: An app, entitled "Hello, Dentist!", containing dental anticipation videos, was developed by a multidisciplinary team and evaluated. This app was tested in two children groups (dental and school settings), aged 6-10 years. Children and caregivers answered sociodemographic questions. In addition, to measure children's dental anxiety, they completed the Children's Fear Survey Schedule before and after app utilization. Control groups were utilized. A total of 100 children were included in this study. Results: Anxiety levels were statistically lower in the groups using the app when compared with their control groups (p < 0.05). The effectiveness in reducing anxiety was greater when the initial anxiety values were higher, as seen in the dental environment group (p = 0.029). Dental procedures previously experienced, as well as the environment (dental or school) in which children were inserted, were factors that influenced their initial anxiety levels. Conclusions: The creation and utilization of an app to reduce dental anxiety are feasible and effective. The app developed decreased children's anxiety, especially in the dental setting, by anticipating dental situation.
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Aplicativos Móveis , Adolescente , Cuidadores , Criança , Ansiedade ao Tratamento Odontológico/prevenção & controle , Humanos , Lactente , Inquéritos e QuestionáriosRESUMO
Abstract: Introduction: In pandemic times, in which the "lockdown strategy" has been adopted, the use of innovations using technological resources such as the creation of instruments that can replace traditional teaching-learning methods in the training of health professionals is essential. Objective: the aim of this study was to develop and evaluate the usability of a realistic interactive simulation computer system using three-dimensional imaging technology and virtual reality with free-access computational tools available on the web. Methods: the development of a prototype (OSCE 3D) was based on the steps used for the construction of a "Serious Game" simulation software. The free-access version of the Unity Editor 3D platform (Unity Technologies, version 2018), used for developing educational games, the software GNU Image Manipulation Program (GIMP, version 2.10.12), Blender (version 2.79) and MakeHuman (version 1.1.1) were utilized for creating textures and building models of the 3D environments. An experimental phase was carried out to assess usability, through a questionnaire based on the System Usability Scale. The study was approved by the Research Ethics Committee of the institution and all participants signed the Informed Consent Form. Results: a total of 39 undergraduate medical students attending the 6th semester of a private university center of northeastern Brazil voluntarily participated in the evaluation of the OSCE 3D. The usability evaluation resulted in a mean score of 75.4 with a margin of error of 3.2, which is considered a good usability score according to the literature. Conclusions: this study allowed the development of a low-cost prototype, using a three-dimension realistic simulation system for clinical skills assessment. This product, even in the prototype phase, showed good usability.
Resumo: Introdução: Em tempos de pandemia em que a "estratégia de bloqueio" tem sido adotada, é imprescindível a utilização de inovações utilizando recursos tecnológicos como a criação de instrumentos que possam substituir os métodos tradicionais de ensino-aprendizagem na formação dos profissionais de saúde. Objetivo: o objetivo deste estudo foi desenvolver e avaliar a usabilidade de um sistema computacional de simulação interativa realista utilizando tecnologia de imagem tridimensional e realidade virtual com ferramentas computacionais de acesso livre disponíveis na web. Métodos: o desenvolvimento de um protótipo (OSCE 3D) baseou-se nas etapas utilizadas para a construção de um software de simulação de um "Serious Game". Foi utilizada a versão de acesso livre da plataforma Unity Editor 3D (Unity Technologies, versão 2018) para o desenvolvimento de jogos educacionais, software GNU Image Manipulation Program (GIMP, versão 2.10.12), Blender (versão 2.79) e MakeHuman (versão 1.1 .1) para criar texturas e modelos de construção de ambientes 3D. Uma fase experimental para avaliação da usabilidade foi realizada por meio de um questionário baseado na Escala de Usabilidade de Sistema. O estudo foi aprovado pelo Comitê de Ética em Pesquisa da instituição e todos os participantes assinaram o Termo de Consentimento Livre e Esclarecido. Resultados: um total de 39 alunos de graduação do 6º semestre de uma universidade privada do Nordeste do Brasil participaram voluntariamente da avaliação do OSCE 3D. A avaliação de usabilidade resultou em pontuação média de 75,4 com margem de erro de 3,2, sendo esta considerada uma boa usabilidade de acordo com a literatura. Conclusões: este trabalho permitiu o desenvolvimento de um protótipo de baixo custo, utilizando um sistema de simulação realista tridimensional para avaliação de habilidades clínicas. Este produto, ainda em fase de protótipo, apresentou boa usabilidade.
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Humanos , Masculino , Feminino , Adulto , Adulto Jovem , Ensino , Software , Exercício de Simulação/métodos , Educação Médica/métodos , Realidade Virtual , COVID-19RESUMO
PURPOSE: To develop a mobile app that allows capturing and editing of photographs, performs image transposition and projection of a protractor with 360° axis markings, and permits accurate visualization of programmed alignment for the positioning of toric intraocular lenses (IOLs). METHODS: In this prospective case series study, a codesign methodology was chosen to develop the Eye Axis Check application. After app development, measurements were obtained and comparisons were made between manual marks and toric IOL alignment without and with the app in 30 eyes that had undergone cataract surgery with toric IOLs. The mobile app was made available to 15 ophthalmic surgeons in different cities to assess its usability. RESULTS: The users approved the developed application for its ease of use and utility. The mean difference between the markings made manually and those made with the app was 1° (±2°; range: 0°-5°), and the mean difference between the IOL position and the assessment made by the app was 3° (±3°; range: 0°-12°). Upon comparison of the agreement between the app measurements and the manual measurements for the IOL angle, no significant differences were found, and an excellent concordance (0.997) and a strong positive linear correlation (0.995) were observed. CONCLUSION: A mobile app for preoperative planning and intraoperative toric IOL alignment was developed and revealed to be useful and easy to use.
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RATIONALE, AIMS AND OBJECTIVES: This study investigated the process of construction, use, and field evaluation of a mobile application for teaching in the anesthesiology area. METHOD: The application was built by using the Co-Design Methodology, which consists of five phases (scoping, shared understanding, brainstorming, refinement and implementation). A one-week case study was carried out in a hospital involving 20 participants (medical students and residents). RESULTS: The results of the test indicated that the developed application presented a high level of usability. CONCLUSIONS: The students considered it to be a useful tool for training and systematizing the preoperative evaluation.
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Anestesiologia/educação , Capacitação em Serviço/métodos , Aplicativos Móveis , Brasil , Competência Clínica , Humanos , Internato e Residência/métodos , Informática Médica , Reprodutibilidade dos Testes , Materiais de Ensino/normasRESUMO
Background:Dental caries comprises the most prevalent chronic disease in children worldwide and is considered a public health problem.Introduction:Few educational oral health applications, directed to the preschool public, are available. The present study aimed at developing an educational game in application format for mobile devices and tested its usability.Materials and Methods:Forty-three children were randomly selected to participate in the study. The methodology used in the development of the application was based on an interactive children's book flux design. The application was elaborated for the Android™ and iOS™ platforms. To evaluate usability, a test method composed of observation and interview surveying was used, and the measuring mechanism consisted of the User's Success Rate. The sample (N = 43) was randomly composed of preschool students (3-5 years of age) from a public school in Brazil.Results:In the effectiveness tests, the success rates of the Story and Game Menus were 97.6% and 85.3%, respectively. In the efficiency tests, the respective rates were 80.2% and 82.1%. The satisfaction evaluation rate was 99.7%.Discussion:The game "Put the healthy food into the mouth" showed to be difficult in utilization due to the children's lack of knowledge concerning healthy foods (p < 0.001 and 95% confidence interval). Three year olds demonstrated a greater requirement for assistance during navigation.Conclusions:The application was successful regarding the following three assessed attributes: (1) effectiveness, (2) efficiency, and (3) satisfaction. However, dietary education was observed to be necessary for the children and their guardians.
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Cárie Dentária/prevenção & controle , Educação em Saúde/métodos , Aplicativos Móveis , Saúde Bucal/educação , Jogos de Vídeo , Brasil , Pré-Escolar , Dieta Saudável/métodos , Feminino , Humanos , Masculino , Satisfação do PacienteRESUMO
ABSTRACT Introduction The interpretation of the electrocardiogram (ECG) is fundamental for the identification of cardiovascular diseases, which are among the main causes of death in the world. The acquisition of this competence is essential in the training of the general practitioner and the use of new teaching tools, based on technology such as the use of mobile learning, can facilitate the acquisition of this knowledge. Objectives The objective of this study was to develop and evaluate the usability and the potentiality for the use in medical education of a mobile teaching application for ECG interpretation. Methods With the participation of two health professors and a computer scientist, a systems analyst, a programmer and a graphic designer, a mobile application was developed to teach ECG interpretation using the Java language. For validation analysis, a usability evaluation questionnaire based on the System Usability Scale (SUS) and a questionnaire used to evaluate the suitability of software for use in medical education, previously translated into Portuguese and applied in Brazil, were used. Results The "ECG Fácil" application was developed for off-line use and free access on iOS and Android platforms. In the validation phase of the application, a total of 109 students had free access to the mobile application for 6 weeks and then evaluated usability through a SUS-based questionnaire. The answers to the questionnaire showed good reliability, according to the validation analysis by Cronbach's alpha coefficient (value: 0.74), and the application presented an excellent acceptance with a mean score on the SUS scale of 85.3. Meanwhile, fifteen faculty members evaluated the application through the questionnaire used to assess the suitability of software for use in medical education, with most agreeing with items indicating that it is suitable for use in medical education. Conclusion The "ECG Fácil" application was considered to be of good usability by students and suitable for educational purpose by teachers. Future studies with this application will be needed to assess the acquisition and retention of knowledge about ECG interpretation by students.
RESUMO Introdução A interpretação do eletrocardiograma (ECG) é fundamental para a identificação de doenças cardiovasculares, que estão entre as principais causas de morte no mundo. A aquisição dessa competência é essencial na formação do médico generalista, e o uso de novas ferramentas de ensino, apoiadas na tecnologia, como o mobile learning, pode facilitar a aquisição desse conhecimento. Objetivos Este estudo teve por objetivo desenvolver e avaliar a usabilidade e a potencialidade para o uso em educação médica de um aplicativo móvel de ensino para interpretação do ECG. Métodos Com a participação de dois professores da área da saúde e um da computação, um analista de sistemas, um programador e um designer gráfico, foi desenvolvido um aplicativo móvel para ensino da interpretação do ECG, utilizando-se a linguagem Java. Para análise de validação foram empregados um questionário de avaliação da usabilidade baseado no System Usability Scale (SUS) e um questionário utilizado para avaliar a adequação de softwares para uso em educação médica, previamente traduzido para o português e aplicado no Brasil. Resultados Foi desenvolvido o aplicativo "ECG Fácil" para uso off-line e de acesso gratuito nas plataformas iOS e Android. Na fase de validação do aplicativo, 109 discentes tiveram acesso livre ao aplicativo móvel durante seis semanas e depois avaliaram a usabilidade por meio de questionário baseado no SUS. As respostas ao questionário mostraram boa confiabilidade, conforme a análise de validação pelo coeficiente alfa de Cronbach (valor: 0,74), e o aplicativo apresentou excelente aceitação, com escore médio de 85,3 na escala SUS. Enquanto isso, 15 docentes avaliaram o aplicativo por meio do questionário utilizado para avaliar a adequação de softwares para uso em educação médica, tendo a maioria concordado com os itens que indicam que ele é adequado ao uso em educação médica. Conclusão O aplicativo "ECG Fácil" foi considerado de boa usabilidade pelos alunos e adequado à finalidade educacional pelos professores. Estudos futuros com esse aplicativo serão necessários para avaliar a aquisição e a retenção de conhecimento sobre a interpretação do ECG pelos alunos.