Resumo: Introdução: O atual surto do novo coronavírus ou Sars-CoV-2, causador da Covid-19, foi relatado pela primeira vez à Organização Mundial da Saúde, pela China, em 31 de dezembro de 2019, sendo declarada pandemia em 11 de março de 2020. Quanto ao espectro clínico da infecção pelo Sars-CoV-2, ele é amplo, variando de quadro assintomático, doença leve do trato respiratório superior, a pneumonia viral grave com insuficiência respiratória e morte. Com uma chance de apresentação clínica grave próxima a 25%, a infecção pelo Sars-CoV-2 pode levar à sobrecarga dos serviços de saúde e aumentar a demanda tanto por recursos materiais como humanos. Para aumentar a disponibilidade de profissionais da área da saúde envolvidos diretamente no atendimento durante a pandemia, o Ministério da Educação autorizou a antecipação da formatura para estudantes de várias áreas da saúde, incluindo Medicina. Objetivo: O objetivo do presente artigo é realizar uma avaliação preliminar do impacto da antecipação da graduação para os formandos de Medicina durante a pandemia de Covid-19. Método: Trata-se de estudo observacional e transversal realizado por meio da aplicação de questionário com 13 perguntas: em cinco, utilizou-se escala Likert de avaliação; em seis, adotou-se o formato de múltipla escolha; e duas foram descritivas. O questionário foi enviado, via Formulário Google, a alunos de Medicina das universidades de Curitiba, no Paraná, formados no primeiro semestre de 2020, que anteciparam a outorga de grau em razão da pandemia de Covid-19. Resultados: Responderam ao questionário 113 formandos, dos quais 101 relataram que já atuam como médicos. Destes, 63,36% afirmaram que estão trabalhando diretamente no atendimento de casos de Covid-19. Sobre a importância da antecipação da outorga de grau, a maioria dos participantes concorda totalmente ou concorda, e apenas três participantes discordam totalmente. Mais da metade dos entrevistados não se sentem prejudicados com a antecipação da outorga de grau. Contudo, 43,3% acreditam que deixaram de adquirir informações importantes em sua formação. Por fim, quanto ao fato de trabalharem na pandemia, 79,6% consideram importante a atuação de médicos recém-formados no combate à Covid-19. Conclusão: Este estudo mostra que, a princípio, os esforços para a antecipação de formatura foram bem-sucedidos, já que os novos médicos estão contribuindo para aliviar a pressão imposta pela falta de profissionais e promover um melhor cuidado aos pacientes durante a pandemia.

Abstract: Introduction: The current outbreak of the new coronavirus or SARS-CoV-2, which causes COVID-19, was first reported to the World Health Organization on December 31, 2019, being declared a pandemic on March 11, 2020. As for the clinical spectrum of SARS-CoV-2 infection, it is a broad one, ranging from asymptomatic, mild upper respiratory tract disease to severe viral pneumonia with respiratory failure and death. With a chance of severe clinical presentation close to 25%, SARS-CoV-2 infection can lead to health service overload and increase the demand for material and human resources. Aiming to increase the availability of health professionals directly involved in care during the pandemic, the Ministry of Education authorized the early graduation for students pursuing careers in health, including medicine. Objective: The aim of this article is to obtain preliminary results of the impact of early graduation for medical students during the COVID-19 pandemic. Method: Observational and cross-sectional study, carried out by applying a questionnaire with 13 questions, five of which used a Likert scale of assessment, six in multiple choice format and two descriptive, via Google Forms, applied to medical students from the universities of Curitiba-PR that graduated earlier in mid-year 2020, due to the COVID-19 pandemic. Results: 113 recently graduated students answered the questionnaire.101 participants reported that they are working as physicians and, among them, 63.36% stated that they are working directly in the treatment of COVID-19 cases. Regarding the importance of an early graduation, most participants fully agree or agree, while only three participants totally disagree. More than half of the interviewees do not feel harmed by the early graduation. However, 43.3% believe they have failed to acquire important information for their training. Finally, regarding their performance in the pandemic, 79.6% consider important their role in the fight against COVID-19 pandemic. Conclusion: The study shows that, at first, the efforts to give the Class of 2020 an early graduation were successful, since these new physicians are contributing to alleviate workforce shortages and provide better care for patients during the pandemic.

Abstract Purpose: To quantify the age-dependent changes in the relative volume of elastic fibers, collagen fibers and the proportion of collagen types I/III in the corpus spongiosum of rats. Methods: Forty-eight rats, raised under similar conditions, were divided into four groups (G1 to G4) and underwent penectomy at the ages of 6, 9, 12 and 24 months, respectively. Histological sections from the middle segment of the penis were stained with Weigert’s resorcin-fuchsin, Masson’s trichrome and Picrosirius red, the volumetric density of elastic fibers, collagen fibers and the proportion of collagen types I and III in the corpus spongiosum were determined by stereological analysis. Results: A reduction in the proportion of collagen I/III between the groups G3 and G4 (p < 0.048) was observed. In the volumetric analysis of elastic fiber, we observed a significant rise between the groups G2 and G3 (p < 0.03) and a reduction of the volume between the groups G3 and G4 (p < 0.01). However, there was no difference in the quantity of total collagen between the groups (p > 0.54). Conclusions: Aging in rats did not change the quantity of total collagen but reduced the proportion of collagen types I/III and the volume of elastic fibers.

Abstract Background: Inflammation is a major component of the response to tissue injury caused by myocardial infarction. High-sensitivity C-reactive protein (hs-CRP) levels might be a simple marker of the severity of this inflammatory response, providing prognostic information. Objective: To associate hs-CRP level on admission and other clinical characteristics with in-hospital mortality of patients with acute ST-segment elevation myocardial infarction (STEMI). Methods: A retrospective cohort study of patients admitted with STEMI was carried out. Patients were analyzed regarding clinical characteristics, reperfusion therapy, hs-CRP on admission and outcomes. Continuous variables were analyzed by non-parametric Mann-Whitney U test and categorical variables by chi-square test. A p value of < 0.05 was considered statistically significant. Results: Of the 118 patients analyzed, 20 died during hospitalization. Higher levels of hs-CRP (p = 0.001) and older ages (p = 0.003) were observed among those patients who died. Logistic regression showed that a one unit increase in hs-CRP increased the risk of death by 15% (p = 0.0017), after adjustment for established risk factors. Similarly, each one-year increase in age increases the risk of death by 6.6% (p = 0.003). Conclusion: Our results demonstrate a strong association between hs-CRP obtained on admission and in-hospital mortality after STEMI. It suggests that hs-CRP can be a marker of inflammatory response to myocardial ischemia, providing prognostic information regarding the risk of death.

INTRODUÇÃO: O vírus Influenza A (H1N1) foi primeiramente descrito em abril de 2009 e, desde então, diversos estudos relataram as características pertinentes à apresentação clínica e ao acometimento pulmonar da doença. Contudo, informações precisas referentes à insuficiência renal aguda (IRA) e às alterações histopatológicas renais nesses pacientes ainda são escassas. OBJETIVO: O objetivo deste estudo é descrever os achados histopatológicos renais de seis pacientes comprovadamente infectados pelo H1N1, que desenvolveram IRA e realizaram biópsia renal, correlacionando-os com os aspectos clínicos. MÉTODOS: Avaliamos seis pacientes do Hospital de Clínicas da UFPR com diagnóstico de H1N1 por PCR viral em 2009 que evoluíram com IRA e que foram submetidos à biópsia renal. Foram revisados os seus prontuários e das lâminas da biópsia renal. RESULTADOS: Todos os casos estudados apresentaram dados clínicos e/ou laboratoriais de IRA, sendo que somente um não apresentou oligúria. À biópsia renal, dois pacientes apresentaram alterações glomerulares: um deles, portador de lupus eritematoso sistêmico, apresentou lesões compatíveis com nefrite lúpica classe III A-C da ISN/RPS 2003 e microangiopatia trombótica focal; outro paciente apresentou glomerulosclerose nodular intercapilar, porém, sem comemorativos clínicos ou laboratoriais de diabetes. Todos os pacientes mostraram graus variáveis de alterações degenerativas vacuolares dos túbulos, com focos de oxalose em dois casos. Dois pacientes possuíam arteriosclerose em grau discreto a moderado. CONCLUSÃO: Em nosso estudo, todos os pacientes apresentarem graus variáveis de alteração degenerativa vacuolar, contudo, não foram encontrados sinais evidentes de necrose tubular aguda, parecendo existir um componente pré-renal como a causa principal de IRA nestes pacientes.

INTRODUCTION: Influenza A (H1N1) virus was first reported on April 2009 and, since then, several studies have reported the characteristics concerning the clinical presentation and pulmonary involvement. However, accurate information about the acute kidney injury (AKI) and kidney histopathological findings in these patients remain scarce. OBJECTIVE: To describe the kidney histopathological findings of 6 patients with H1N1 who developed AKI and underwent kidney biopsy, correlating them with clinical features. METHODS: We studied six patients admitted to Hospital de Clínicas UFPR with a PCR-confirmed diagnosis of H1N1who developed ARF and underwent kidney biopsy. We reviewed their medical file and the microscopy findings of the biopsy. RESULTS: Clinical and/or laboratory evidence of AKI was present in all cases, and only one did not present oliguria. Kidney tissues revealed glomerular lesions in two patients: one patient, with systemic lupus erythematosus, showed changes consistent with lupus nephritis class III A-C according to the ISN/RPS 2003 and focal thrombotic microangiopathy; the other one had intercapillary nodular glomerulosclerosis, but without clinical or laboratory evidence of diabetes. Vacuolar degenerative tubular changes were present in all cases, with focus of oxalosis in two cases. Mild to moderate atherosclerosis was found in two patients. CONCLUSION: In this study, varying degrees of vacuolar degenerative tubular changes were present in all patients, but there were no signs of acute tubular necrosis. It seems that in the present study a prerenal cause of acute renal failure was the main involved mechanim to explain the cause of renal failure in these patients.

INTRODUÇÃO: A síndrome de quebra-nozes (SQN) é uma condição na qual há compressão da veia renal esquerda pela aorta e a artéria mesentérica superior, associada a uma sintomatologia característica, porém pouco específica. RELATO DO CASO: Trata-se de uma paciente de 37 anos, apresentando hematúria macroscópica intermitente sem etiologia estabelecida até então. Durante a investigação, uma angiotomografia evidenciou compressão da veia renal esquerda no seu trajeto entre a artéria mesentérica superior e aorta abdominal, associada a importante dilatação de veia ovariana esquerda. DISCUSSÃO: A síndrome desencadeada pela compressão da veia renal esquerda pela aorta e artéria mesentérica superior apresenta prevalência provavelmente aumentada no sexo feminino e postula-se que seja associada a situações particulares, como a nefroptose e a escassez de gordura retroperitoneal. Hematúria, sinal típico, teria como causa a ruptura do fino septo que separa as veias do sistema coletor urinário. Vários exames de imagem podem auxiliar no diagnóstico. O tipo de tratamento que deve ser adotado ainda é controverso, existindo diversas opções cirúrgicas, como o uso de stent intravascular e a conduta conservadora. De diagnóstico costumeiramente tardio, essa síndrome deve ser incluída na investigação de pacientes com quadro de hematúria a esclarecer.

INTRODUCTION: The nutcracker syndrome is defined by the compression of the left renal vein between the aorta and superior mesenteric arteries, accompanied by a classic, but less specific, symptomatology. CASE REPORT: We reported a case of a 37-year-old woman who had been investigated because of intermittent gross hematuria of unknown origin. Computed tomographic angiography revealed compression of the left renal vein as it ran between the superior mesenteric artery and the abdominal aorta, associated with significant dilation of the left ovarian vein. DISCUSSION: The nutcracker syndrome, caused by compression of the left renal vein by the aorta and superior mesenteric arteries, is probably more prevalent in women, and it is caused by specific situations, such as renal ptosis and paucity of retroperitoneal fat. Hematuria, a typical symptom, is due to rupture of the thin-walled septum separating the veins of the urinary collecting system. Imaging tests may help with the diagnosis. The best treatment is still elusive, but there are several surgical approaches, such as intravascular stenting, and also a conservative management. Diagnosis is usually delayed, and the syndrome should be included in the differential of hematuria of unknown origin.