Abstract Objective To describe the relationship of oxidative stress and antioxidant biomarkers in cord blood of premature newborns and the prognosis of diseases in the neonatal period. Sources This study consists of an integrative review. Searches were conducted in electronic databases Scopus, PubMed, Web of Science, and Medline/Lilacs through the Virtual Library on Health Issues, using the descriptors: “premature infants”, “preterm infants”, “preterm birth”, “preterm”, “oxidative stress”, “antioxidants”, “infant, premature, diseases” and “cord blood”. Original articles published between 2016 and 2021 in Portuguese, English, or Spanish, which analyzed oxidative stress and/or antioxidant levels through cord blood of premature newborns and evaluated clinical outcomes, were included. Summary of the findings Of the 1,003 studies reviewed, after exclusion of duplicate articles, analysis of titles, abstracts, and full texts, 18 articles were included. 72.2% (n = 13) of analyzed studies reported a positive association between oxidative stress and the development of prematurity-related diseases; 27.7% (n = 5) showed no significant relation. Outcomes that showed a positive association were: intrauterine growth restriction, necrotizing enterocolitis, bronchopulmonary dysplasia, intraventricular hemorrhage, fetal inflammatory response syndrome, early-onset neonatal sepsis, retinopathy of prematurity, morbidity, and mortality. Conclusion The analysis of oxidative stress and antioxidants in cord blood of premature newborns may be useful in the prognosis of some pathologies. The consequences of oxidative damage are known to be associated with increased morbidity in the short and long term. Further investigation is needed in this population in order to define normality parameters of biomarkers, clinical manifestations, diagnosis and treatment of these conditions.

Objetivo: descrever e avaliar a aceitação do modelo porcino de baixo custo para drenagem torácica em projeto de ensino médico no oeste do Paraná, Brasil. Métodos: um modelo suíno de baixa tecnologia e baixo custo foi desenvolvido em projeto de ensino de drenagem torácica. Alunos de Medicina e médicos residentes receberam instruções teóricas sobre o procedimento e realizaram a drenagem torácica no modelo porcino. Após realizarem o procedimento, os participantes responderam a um questionário sobre o modelo experimental proposto. Esse estudo apresenta o modelo e analisa as respostas ao questionário. Resultados: setenta e nove participantes usaram e avaliaram o modelo. A correlação anatômica entre o modelo porcino e a anatomia humana foi considerada alta com média de 8,1+1,0. Todos os participantes aprovaram o modelo porcino de baixo custo para o ensino de drenagem torácica. Conclusão: o modelo porcino de baixo custo para drenagem torácica apresentado neste projeto de ensino foi facilmente montado e teve boa aceitação local entre os participantes. Esse modelo tem potencial para ser usado como ferramenta de ensino na educação médica.

Objective: to describe and evaluate the acceptance of a low-cost chest tube insertion porcine model in a medical education project in the southwest of Paraná, Brazil. Methods: we developed a low-cost and low technology porcine model for teaching chest tube insertion and used it in a teaching project. Medical trainees - students and residents - received theoretical instructions about the procedure and performed thoracic drainage in this porcine model. After performing the procedure, the participants filled a feedback questionnaire about the proposed experimental model. This study presents the model and analyzes the questionnaire responses. Results: seventy-nine medical trainees used and evaluated the model. The anatomical correlation between the porcine model and human anatomy was considered high and averaged 8.1±1.0 among trainees. All study participants approved the low-cost porcine model for chest tube insertion. Conclusion: the presented low-cost porcine model for chest tube insertion training was feasible and had good acceptability among trainees. This model has potential use as a teaching tool in medical education.

<sec><title>OBJETIVO:</title><p>avaliar a aceitabilidade de um projeto de ensino utilizando modelo porcino de vias aéreas no ensino da cricotiroidotomia cirúrgica para estudantes de Medicina e médicos residentes em um hospital universitário no sul do Brasil.</p></sec><sec><title>MÉTODOS:</title><p> foi desenvolvido um projeto de ensino usando modelo porcino para treinamento em cricotiroidotomia cirúrgica. Estudantes de Medicina e residentes receberam aula teórica sobre esta técnica cirúrgica e, em seguida, realizaram no modelo o treinamento prático. Após o procedimento, todos os participantes preencheram um formulário acerca da importância do treinamento em manuseio de vias aéreas e do modelo utilizado.</p></sec><sec><title>RESULTADOS:</title><p> houve 63 participantes. A qualidade geral do modelo porcino foi estimada em 8,8, enquanto a correlação anatômica entre o modelo e a anatomia humana recebeu o escore médio de 8,5 entre os treinandos. O modelo foi unanimemente aprovado e considerado útil no ensino do procedimento.</p></sec><sec><title>CONCLUSÃO:</title><p> o treinamento de cricotiroidotomia cirúrgica em modelo porcino apresentou boa aceitação entre os estudantes de Medicina e os residentes desta Instituição.</p></sec>

<sec><title>OBJECTIVE:</title><p> To evaluate the acceptability of an educational project using A porcine model of airway for teaching surgical cricothyroidotomy to medical students and medical residents at a university hospital in southern Brazil.</p></sec><sec><title>METHODS:</title><p> we developed a teaching project using a porcine model for training in surgical cricothyroidotomy. Medical students and residents received lectures about this surgical technique and then held practical training with the model. After the procedure, all participants filled out a form about the importance of training in airway handling and the model used.</p></sec><sec><title>RESULTS:</title><p> There were 63 participants. The overall quality of the porcine model was estimated at 8.8, while the anatomical correlation between the model and the human anatomy received a mean score of 8.5. The model was unanimously approved and considered useful in teaching the procedure.</p></sec><sec><title>CONCLUSION:</title><p> the training of surgical cricothyroidotomy with a porcine model showed good acceptance among medical students and residents of this institution.</p></sec>