Applicability of the Disruptions in Surgery Index in the Cardiovascular Management Scenarios - A Marker for Developing Functionally Efficient Teams

Abstract Introduction: To support the development of practices and guidelines that might help to reduce adverse events related to human factors, we aimed to study the response and perception by members of a cardiovascular surgery team of various error-driven or adverse features that might arise in the operating room (OR). Methods: A previously validated Disruptions in Surgery Index (DiSI) questionnaire was completed by individuals working together in a cardiovascular surgical unit. Results were submitted to reliability analysis by calculating the Cronbach's alpha coefficient. Non-parametric Kruskal-Wallis test and Dunn's post-test were performed to estimate differences in perceptions of adverse events or outcomes between the groups (surgeons, nurses, anesthesiologists, and technicians). P<0.05 was considered statistically significant. Results: Cronbach's alpha reliability coefficients showed consistency within the recommended range for all disruption types assessed in DiSI: an individual's skill (0.85), OR environment (0.88), communication (0.81), situational awareness (0.92), patient-related disruption (0.89), team cohesion (0.83), and organizational disruption (0.83). Nurses (27.4%) demonstrated significantly higher perception of disruptions than surgeons (25.4%), anesthetists (23.3%), and technicians (23.0%) (P=0.005). Study participants were more observant of their colleagues' disruptive behaviors than their own (P=0.0001). Conclusion: Our results revealed that there is a tendency among participants to hold a positive self-perception position. DiSI appears to be a reliable and useful tool to assess surgical disruptions in cardiovascular OR teams, identifying negative features that might imperil teamwork and safety in the OR. And human factors training interventions are available to develop team skills and improve safety and efficiency in the cardiovascular OR.

Gestação heterotópica espontânea: relato de caso com diagnóstico e manejo oportunos / Spontaneous heterotopic pregnancy: a case report with appropriate diagnosis and management

Introdução: A gravidez heterotópica é um fenômeno obstétrico muito raro em concepções espontâneas no qual gestações tópica e ectópica coexistem. O diagnóstico é difícil, mas, se realizado precocemente, o prognóstico é favorável. Descrição do caso: Paciente do sexo feminino, de 35 anos de idade, admitida com quadro de dor abdominal e pequeno sangramento vaginal. Diagnosticada precocemente e tratada cirurgicamente por gravidez heterotópica naturalmente concebida. Como resultado, a gravidez tópica seguiu sem intercorrências. Conclusão: Esse caso enfatiza a necessidade de considerar esse diagnóstico diferencial e analisar clínica e ecograficamente as características globais da pelve, mesmo na ausência de fatores de risco em gestações tópicas.(AU)

Introduction: Heterotopic pregnancy (HP) is a rare obstetric phenomenon in spontaneous conceptions in which intrauterine and ectopic pregnancies coexist. The diagnosis is difficult, but, if performed early, the prognosis is favorable. Case description: A 35-year-old woman was admitted with abdominal pain and light vaginal bleeding. She was early diagnosed and surgically treated for a naturally conceived heterotopic pregnancy. As a result, the intrauterine pregnancy went on healthily. Conclusion: This case emphasizes the need to regard HP as a differential diagnosis and analyze the global pelvis characteristics both clinically and in ultrasound scans, even in the absence of risk factors when dealing with intrauterine pregnancies.(AU)

Omeprazole and adenocarcinoma in the stomach of rats submitted to duodenogastric reflux. Is there a protective effect?

Abstract Purpose: To investigate the role of omeprazole and nitrites on the gastric mucosa of rats submitted to specific techniques to induce duodenogastric reflux. Methods: One hundred and twenty Wistar rats were divided into three groups: Group I (n=40) -gastrotomy; Group II (n=40) - duodenogastric reflux after gastrojejunoanastomosis latero-lateral (DGR); Group III (n=40) - retrograde duodenogastric reflux through the pylorus (DGR-P). The groups were divided into 4 subgroups of 10 animals, respectively treated for 16 weeks with water, omeprazole 1.6 mg / rat / day, nitrite 600 mg / kg / day and omeprazole plus nitrite simultaneously. Results: The proliferative lesions found were: squamous hyperplasia - 69.1%, adenomatous hyperplasia in the anastomosis - 29.1% and prepyloric adenomatous hyperplasia - 42.5%. Adenocarcinomas were registered in 7 animals (5.8%): one in Group I (omeprazole plus nitrite), two in Group II (omeprazole and nitrite plus omeprazole) and four in Group III (water, nitrite, omeprazole and omeprazole plus nitrite). Conclusions: The occurrence of squamous hyperplasia, adenomatous hyperplasia and adenocarcinoma increased after gastrojejunal anastomoses, which cause duodenogastric reflux. The association of omeprazole did not protect the development of proliferative lesions and cancer induced by duodenogastric reflux in rats.

Neurologic manifestations in emerging arboviral diseases in Rio de Janeiro City, Brazil, 2015-2016

Abstract INTRODUCTION Dengue has affected Rio de Janeiro City since the 1980s. The sequential Zika and chikungunya virus introductions during 2015 aggravated the health scenario, with 97,241 cases of arboviral diseases reported in 2015-2016, some with neurological disorders. METHODS Arbovirus-related neurologic cases were descriptively analyzed, including neurological syndromes and laboratory results. RESULTS In total, 112 cases with non-congenital neurologic manifestations (Guillain-Barré syndrome, 64.3%; meningoencephalitis, 24.1%; acute demyelinating encephalomyelitis, 8%) were arbovirus-related; 43.7% were laboratory-confirmed, of which 57.1% were chikungunya-positive. CONCLUSIONS Emerging arbovirus infections brought opportunities to study atypical, severe manifestations. Surveillance responses optimized case identification and better clinical approaches.

Pre-validation study of the brazilian version of the disruptions in surgery index (disi) as a safety tool in cardiothoracic surgery

Abstract Introduction: Most risk stratification scores used in surgery do not include external and non-technical factors as predictors of morbidity and mortality. Objective: The present study aimed to translate and adapt transculturally the Brazilian version of the Disruptions in Surgery Index (DiSI) questionnaire, which was developed to capture the self-perception of each member of the surgical team regarding the disruptions that may contribute to error and obstruction of safe surgical flow. Methods: A universalist approach was adopted to evaluate the conceptual equivalence of items and semantics, which included the following stages: (1) translation of the questionnaire into Portuguese; (2) back translation into English; (3) panel of experts to draft the preliminary version; and (4) pre-test for evaluation of verbal comprehension by the target population of 43 professionals working in cardiothoracic surgery. Results: The questionnaire was translated into Portuguese and its final version with 29 items obtained 89.6% approval from the panel of experts. The target population evaluated all items as easy to understand. The mean overall clarity and verbal comprehension observed in the pre-test reached 4.48 ± 0.16 out of the maximum value of 5 on the psychometric Likert scale. Conclusion: Based on the methodology used, the experts' analysis and the results of the pre-test, it is concluded that the essential stages of translation and cross-cultural adaptation of DiSI to the Portuguese language were satisfactorily fulfilled in this study.

Off-pump versus on-pump coronary artery bypass grafting in frail patients: study protocol for the fragile multicenter randomized controlled trial

Abstract Introduction: Advances in modern medicine have led to people living longer and healthier lives. Frailty is an emerging concept in medicine yet to be explored as a risk factor in cardiac surgery. When it comes to CABG surgery, randomized controlled clinical trials have primarily focused on low-risk (ROOBY, CORONARY), elevated-risk (GOPCABE) or high-risk patients (BBS), but not on frail patients. Therefore, we believe that off-pump CABG could be an important technique in patients with limited functional capacity to respond to surgical stress. In this study, the authors introduce the new national, multicenter, randomized, controlled trial "FRAGILE", to be developed in the main cardiac surgery centers of Brazil, to clarify the potential benefit of off-pump CABG in frail patients. Methods: FRAGILE is a two-arm, parallel-group, multicentre, individually randomized (1:1) controlled trial which will enroll 630 patients with blinded outcome assessment (at 30 days, 6 months, 1 year, 2 years and 3 years), which aims to compare adverse cardiac and cerebrovascular events after off-pump versus on-pump CABG in pre-frail and frail patients. Primary outcomes will be all-cause mortality, acute myocardial infarction, cardiac arrest with successful resuscitation, low cardiac output syndrome/cardiogenic shock, stroke, and coronary reintervention. Secondary outcomes will be major adverse cardiac and cerebrovascular events, operative time, mechanical ventilation time, hyperdynamic shock, new onset of atrial fibrillation, renal replacement therapy, reoperation for bleeding, pneumonia, length of stay in intensive care unit, length of stay in hospital, number of units of blood transfused, graft patency, rate of complete revascularization, neurobehavioral outcomes after cardiac surgery, quality of life after cardiac surgery and costs. Discussion: FRAGILE trial will determine whether off-pump CABG is superior to conventional on-pump CABG in the surgical treatment of pre-frail and frail patients. Trial registration: ClinicalTrials.gov, ID: NCT02338947. Registered on August 29th 2014; last updated on March 21st 2016.

Formas de apresentação e evolução clínica dos óbitos por dengue em residentes no município do Rio de Janeiro em 2012 / Forms of clinical presentation and course of the deaths from dengue in the municipality of Rio de Janeiro in 2012

Objetivo: A dengue tem importância mundial por sua morbidadee abrangência. O presente artigo teve como objetivo descrever as principais características dos óbitos por dengue,ocorridos no Município do Rio de Janeiro (MRJ), durante aepidemia de 2012. Métodos: Foram descritos os 35 casosde óbitos por dengue ocorridos em 2012 neste município. Asvariáveis estudadas foram coletadas a partir das fichas de investigaçãode óbitos por dengue, padronizadas pelo Ministério daSaúde. Resultados: Encontrou-se maior proporção de óbitosentre 50 e 59 e acima de 70 anos, presença de comorbidadesem 77,8%, ligeiro predomínio do sexo masculino e da raça/corpreta. Principais achados hematológicos: leucopenia em 46,8%,leucocitose em 78,1%, hemoconcentração em 39,4% e plaquetopeniaem 87,9%. Na parte bioquímica: aumento de amilaseem 50%, gama GT em 92,8%, transaminase glutâmico oxaloacética(TGO) em 95,2%, transaminase glutâmico pirúvica(TGP) em 80,9%, bilirrubinas em 69,2%, creatina-fosfoquinase(CPK) em 50% e lactato desidrogenase (LDH) em 100%. Derramecavitário foi descrito em 64,3% e espessamento de parededa vesícula biliar em 37,5%. Manifestações atípicas evidenciadas:neurológicas 8,6%, insuficiência hepática 11,4%, insuficiênciarenal 25,7% e sangramento 22,8%. Conclusão: Oacompanhamento de exames laboratoriais e de imagem auxilia omanejo clínico e a predição da gravidade da dengue. Este acompanhamento,juntamente com a estabilização das morbidadespreexistentes, pode reduzir sua letalidade.(AU)

Objectives: Dengue has global significance for its morbidityand scope. This article aims to describe the main features of deathsdue to dengue, during the dengue epidemic in Rio de Janeiro(MRJ) in 2012. Methods: The 35 cases of obit by dengueoccurred in 2012 in this municipality were described. The studiedvariables were collected from the records of investigation of obitby dengue, standardized by the Ministry of Health. Results:Review of 35 deaths due to dengue that occurred in the city ofRio de Janeiro in 2012 showed a higher proportion between agesof 50 and 59 and also greater than 70 years old, the presence ofcomorbidities in 77.8% and a slight prevalence in male gender andin race/color black. Major hematologic findings were leukopenia(46.8%), leukocytosis (78.1%), hemoconcentration (39.4%)and thrombocytopenia (87.9%). Other lab abnormalities wereamylase (50%), gamma GT (92.8%), aspartate aminotransferase(AST) (95.2%), serum glutamate pyruvate transaminase (SGPT)alanine transferase (ALT) in 80.9%, bilirubin in 69.2%, creatinephosphokinase in 50% (5/10) and lactate dehydrogenase in100%. Cavity effusions were described in 60% and thickenedgallbladder in 37.5%. Atypical symptoms that were evident:neurological 8.6%, liver failure, 11.4%, kidney failure, 25.7%and bleeding 22.8%. Conclusion: Monitoring the levelsof hematocrit, platelets, aminotransferases and imaging tests helpthe clinical management and prediction of severity of dengueand, along with the stabilization of preexisting comorbidities,may reduce its lethality.(AU)

Idiopathic dilated cardiomyopathy: computerized anatomic study of relashionship between septal and free left ventricle wall / Cardiomiopatia dilatada idiopática: estudo anatômico computadorizado da relação entre o septo e a parede livre do ventrículo esquerdo

Introduction: A feature of dilated cardiomyopathy is the deformation of ventricular cavity, which contributes to systolic dysfunction. Few studies have evaluated this deformation bearing in mind ventricular regions and segments of the ventricle, which could reveal important details of the remodeling process, supporting a better understanding of its role in functional impairment and the development of new therapeutic strategies. Objective: To evaluate if, in basal, equatorial and apical regions, increased internal transverse perimeter of left ventricle in idiopathic dilated cardiomyopathy occurs proportionally between the septal and non-septal segment. Methods: We performed an anatomical study with 28 adult hearts from human cadavers. One group consisted of 18 hearts with idiopathic dilated cardiomyopathy and another group with 10 normal hearts. After lamination and left ventricle digital image capture, in three different regions (base, equator and apex), the transversal internal perimeter of left ventricle was divided into two segments: septal and not septal. These segments were measured by proper software. It was established an index of proportionality between these segments, called septal and non-septal segment index. Then we determined whether this index was the same in both groups. Results: Among patients with normal hearts and idiopathic dilated cardiomyopathy, the index of proportionality between the two segments (septal and non-septal) showed no significant difference in the three regions analyzed. The comparison results of the indices NSS/SS among normal and enlarged hearts were respectively: in base 1.99 versus 1.86 (P=0.46), in equator 2.22 versus 2.18 (P=0.79) and in apex 2.96 versus 3.56 (P=0.11). Conclusion: In the idiopathic dilated cardiomyopathy, the transversal dilatation of left ventricular internal perimeter occurs proportionally between the segments corresponding to the septum and free wall at the ...

Introdução: Uma das características da cardiomiopatia dilatada idiopática é a deformação da cavidade ventricular, a qual contribui para a disfunção sistólica. Poucos trabalhos julgam importante a avaliação dessa deformação ventricular levando em consideração regiões e segmentos do ventrículo, o que pode revelar detalhes importantes do processo de remodelamento, dando suporte a um melhor entendimento do seu papel no comprometimento funcional e ao surgimento de novas estratégias terapêuticas. Objetivo: Verificar se, em regiões diferentes, o aumento do perímetro transversal da câmara ventricular esquerda na cardiomiopatia dilatada idiopática ocorre de maneira proporcional entre o segmento septal e o não septal (parede livre). Métodos: Foi realizado um estudo anatômico com 28 corações adultos. Um grupo foi constituído por 18 corações com cardiomiopatia dilatada idiopática e outro grupo com 10 corações normais. Em três regiões diferentes (base, equador e ápice), o perímetro interno transversal do ventrículo esquerdo foi dividido em dois segmentos: septal e não septal. Foi criado um índice de proporcionalidade entre esses segmentos. Em seguida verificou-se se esse índice era o mesmo entre os grupos. Resultados: Entre corações normais e portadores de cardiomiopatia dilatada idiopática, o índice de proporcionalidade entre os dois segmentos (septal e não septal) não apresentou diferença significativa nas três regiões analisadas. Conclusão: Na cardiomiopatia dilatada idiopática, a dilatação transversal do septo é proporcional à dilatação da parede livre nas regiões basal, equatorial e apical da câmara ventricular esquerda. .

Videotoracoscopia como uma opção no tratamento cirúrgico do quilotórax após cirurgia cardíaca pediátrica / Video-assisted thoracoscopy as an option in the surgical treatment of chylothorax after cardiac surgery in children

OBJETIVO: Avaliar o uso de videotoracoscopia no tratamento cirúrgico do quilotórax após cirurgia para correção de cardiopatias congênitas em crianças. MÉTODOS: Revisamos os prontuários médicos de 3.092 crianças operadas para a correção de cardiopatias congênitas no Instituto do Coração/Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo (SP) entre fevereiro de 2002 e fevereiro de 2007. RESULTADOS: Das 3.092 crianças, 64 (2,2 por cento) apresentaram quilotórax como complicação pós-operatória. Em 50 (78,1 por cento) dessas, o tratamento clínico foi bem-sucedido, enquanto esse falhou em 14 (21,9 por cento), as quais foram submetidas à ligação do ducto torácico por videotoracoscopia. A ligação do ducto torácico obteve sucesso em 12 pacientes (86 por cento) e falhou em 2 casos, os quais foram resolvidos com medidas clínicas adicionais, como dieta pobre em gorduras e nutrição parenteral. Não houve morbidade ou mortalidade relacionada à operação. Dos 14 pacientes, 5 (35 por cento) faleceram em decorrência de complicações cardíacas ou infecciosas. CONCLUSÕES: A ligadura videoassistida do ducto torácico pode ser realizada com segurança em pacientes gravemente enfermos e com doença cardíaca grave, com resultados favoráveis.

OBJECTIVE: To evaluate the use of video-assisted thoracoscopy in the surgical treatment of chylothorax developed after the surgical correction of congenital heart disease in children. METHODS: We reviewed the medical charts of 3,092 children who underwent surgery for congenital heart disease between February of 2002 and February of 2007 at the Heart Institute of the University of São Paulo School of Medicine Hospital das Clínicas, in São Paulo, Brazil. RESULTS: Of the 3,092 children, 64 (2.2 percent) presented with chylothorax as a postoperative complication. In 50 (78.1 percent) of those patients, the clinical management was successful, whereas it failed in 14 (21.9 percent), all of whom were then submitted to thoracic duct ligation by video-assisted thoracoscopy. The thoracic duct ligation was successful in 12 patients (86 percent) but failed in 2. In the postoperative period, additional clinical measures, such as a low-fat diet and parenteral nutrition, were required in order to resolve those 2 cases. There was no surgical morbidity or mortality. Of the 14 patients who underwent thoracic duct ligation, 5 (35 percent) died due to cardiac or infectious complications. CONCLUSIONS: Video-assisted thoracic duct ligation can be safely performed in patients with severe heart disease, and the outcomes are favorable.

Qualidade de vida em foco / Focus on quality of life

Este artigo tem por objetivo discutir aspectos relacionados ao conceito de qualidade de vida em Saúde. Este artigo apresenta também informações relacionadas aos instrumentos de qualidade de vida.

This article aims to discuss aspects concerning Healthrelated to quality of life concepts. This paper presents some piece of information regarding the quality of life instruments.

Tendências em experimentação animal / Trends in animal experimentation

Introdução: A busca do entendimento de fatores etiológicos, mecanismos e tratamento das doenças tem levado ao desenvolvimento de vários modelos animais nas últimas décadas. OBJETIVO: Esse artigo tem por objetivo discutir aspectos relacionados a modelos animais de experimentação, escolha do animal e tendências atuais nesse campo em nosso país. Além disso, esse estudo buscou avaliar o espaço ocupado por artigos experimentais em revistas médicas. Métodos: Foram selecionadas cinco revistas brasileiras, indexadas na LILACS, SciELO, MEDLINE, e recentemente incorporadas pelo Institute for Scientific Information Journal of Citation Reports. Foram selecionados pelo resumo ou abstract todos os artigos publicados nessas revistas, nos anos de 2007 e 2008, que empregaram modelos animais. Resultados: Do total de 832 artigos publicados no período pelas revistas analisadas, foram selecionados 92 (11,1 por cento) que empregavam animais de experimentação. O número de artigos experimentais variou de 5,2 por cento a 17,9 por cento do conteúdo global da revista. Nas instruções aos autores de quatro (80 por cento) das revistas avaliadas, havia referência explícita aos princípios éticos na condução de estudos com animais. Os modelos animais induzidos representaram 100 por cento dos artigos analisados neste estudo. O rato foi o animal mais empregado nos artigos analisados, sendo utilizado em 78,3 por cento deles. Conclusões: O presente estudo poderá fornecer subsídios para adoção de políticas editoriais futuras relativas à publicação de artigos originários de pesquisa animal na RBCCV.

Introduction:: The search of the understanding of etiological factors, mechanisms and treatment of the diseases has been taking to the development of several animal models in the last decades. OBJECTIVE: To discuss aspects related to animal models of experimentation, animal choice and current trends in this field in our country. In addition, this study evaluated the frequency of experimental articles in medical journals. Methods: Five Brazilian journals indexed by LILACS, SciELO, MEDLINE, and recently incorporate for Institute for Scientific Information Journal of Citation Reports were analyzed. All the papers published in those journals, between 2007 and 2008, that used animal models, were selected based on the abstracts. Results: Of the total of 832 articles published in the period, 92 (11.1 percent) experimentation papers were selected. The number of experimental articles ranged from 5.2 percent to 17.9 percent of the global content of the journal. In the instructions to the authors, four (80 percent) journals presented explicit reference to the ethical principles in the conduction of studies with animals. The induced animal models represented 100 percent of the articles analyzed in this study. The rat was the most employed animal in the analyzed articles (78.3 percent). Conclusions: The present study can contribute, supplying subsidies for adoption of future editorials policies regarding the publication of animal research papers in Brazilian Journal of Cardiovascular Surgery.

Vascularização arterial da região do nó sinoatrial em corações suínos: origem, distribuição e quantificação / Arterial vascularization of the sinoatrial node in swine hearts: origin, distribution and quantification

O nó sinoatrial, por se encontrar topograficamente instalado como componente inicial do sistema de condução, é responsável pela geração dos impulsos nervosos determinantes da contração cardíaca. Estudos relacionados à morfologia do nó, visando conhecer a origem, trajeto e distribuição dos vasos neste tecido são conhecidos, contudo, no que diz respeito a estes aspectos e aos dados quantitativos da irrigação nodal, no que se refere ao comportamento vascular arterial e a densidade vascular arterial desta região, a literatura é escassa. Com este objetivo foram utilizados 30 corações de suínos SRD, sendo 27 injetados com resina vinílica corada, para análise da origem e trajeto da ANSA (artéria do nó sinoatrial) e 3 corações injetados com solução aquosa de carvão coloidal (tinta nanquim) para proceder à análise estereológica. As artérias atriais originaram-se tanto da artéria coronária direita quanto da esquerda, com predominância da primeira (66,66 por cento e 33,33 por cento, respectivamente). Quando originada da coronária direita, a irrigação ocorreu pelo ramo AADAM (artéria atrial direita cranial medial) em 14 casos e pelos ramos AADAI (artéria atrial direita cranial medial) em 2 casos e AADAL (artéria atrial direita cranial lateral) em 2 casos. Em 9 casos (33,33 por cento) originou-se pela artéria coronária esquerda: quatro pelo ramo AASPL (artéria atrial esquerda caudal lateral), dois pelo ramo AASAI (artéria atrial esquerda cranial intermédia) e três pelo ramo AASAM (artéria atrial esquerda cranial medial). Anastomoses interarteriais, com participação dos vasos responsáveis pela irrigação do território do nó sinoatrial foram observadas na maioria dos casos (25 corações). O Volume do órgão ou Volume Referência (V(ref)) foi de 35,32x10(4)µm³. Para as variáveis estereológicas analisadas, a estimação da densidade de comprimento do vaso (Lv) foi de 766; o comprimento do vaso (L) - mm - foi de 27,06x10(5)µm; a densidade de superfície de área...

The sinoatrial node, for being topographically installed as the initial component of the conduction system, is responsible for the production of the nervous impulses, which determines the cardiac contraction. There have been made studies related to the node's morphology in order to know the origin, distribution and quantification of the vases in this tissue, however, in spite of the results and quantitative data of the nodal irrigation - arterial vascular conduct and arterial vascular density, at the nodal level - the literature is scarce. With this objective 27 SRD swine hearts, injected with colored resin for macroscopic analysis of the origin and distribution of ANSA (sinoatrial node artery), 3 others injected with watery solution of colloidal coal (dyed nanquim) were used, to mark the route of the vases on the node level for stereological analysis. The atrial arteries originated as well from the right coronary artery as from the left one, with predominance of the first (66.66 percent and 33.33 percent, respectively). When originated from the right coronary artery, there existed the following branches: AADAM (right cranial medial atrial artery) in 14 cases, AADAI (right cranial intermedial atrial artery) in 2 cases, and AADAL (right cranial lateral atrial artery) in 2 cases. In 9 cases (33.33 percent) the following branches originated from the left coronary artery: 4 through branch AASPL (left caudal lateral atrial artery), 2 through branch AASAI (left cranial intermedial atrial artery) and 3 through branch AASAM (left cranial medial atrial artery). Interarterial anastomoses with vessels responsible for irrigation of the sinoatrial node area were observed in most of the cases (25 hearts). The Volume or Reference Volume (V(ref)) of the hearts were 35.32x10(4)µm³. For the stereological variables analyzed, the estimate density of the vessel length (Lv) was 766; the vessel length (L) - mm - was 27.06x10(5)µm; the area's surface density...

Influence of cyclosporine A on mucociliary system after lung transplantation in rats

PURPOSE: To investigate the function of the bronchial mucociliary system in transplanted rat lungs with and without the influence of immunosuppression. METHODS: Thirty-six rats underwent single-lung transplantation and were divided into two groups, one of which received cyclosporine treatment, and the control group which did not. Cyclosporine was administered subcutaneously in doses of 10 mg/kg daily. The rats were sacrificed 2, 15 or 30 days after transplantation. In situ bronchial mucociliary transport (MCT) and ciliary beat frequency (CBF) were determined proximal and distal to the bronchial anastomosis. RESULTS: Significant progressive improvement on MCT, proximal and distal to the anastomotic site, was also found in the cyclosporine-treated group at 15 and 30 days (p<0.01). No significant change in MCT was found in the control group. CBF behavior in the two groups. Histological analysis showed that rejection was significantly higher in the control group (p<0.05). CONCLUSION: Cyclosporine has a positive influence on bronchial mucociliary transport but not on CBF due to the effect of the rejection mechanism.

OBJETIVO: Investigar a função do sistema mucociliar em ratos transplantados sob a influência de imunossupressores. MÉTODOS: Trinta e seis ratos foram submetidos ao transplante pulmonar unilateral e divididos em dois grupos, onde um grupo foi tratado com ciclosporina e outro foi controle. Administrada ciclosporina por via subcutânea na dose de 10 mg/kg diariamente. Os ratos foram sacrificados 2, 15 e 30 dias após o transplante pulmonar. O transporte mucociliar brônquico (TMC) in situ e a freqüência de batimento ciliar (FBC) foram analisados na porção proximal e distal à anastomose brônquica. Realizada correlação dos achados com parâmetros gasométricos e histologia. RESULTADOS: Foi encontrada melhora progressiva e significante no TMC na região proximal e distal a anastomose no grupo que recebeu ciclosporina em 15 e 30 dias (p<0,01). Não houve diferença na FBC nos dois grupos estudados. A análise histológica mostrou que a rejeição foi significantemente maior no grupo controle (p<0,05). A oxigenação foi melhor nos animais que receberam a ciclosporina. CONCLUSÃO: A ciclosporina exerceu influência positiva no transporte mucociliar brônquico, provavelmente por sua ação imunossupressora.

Revistas brasileiras publicadoras de artigos científicos em cirurgia. III: análise das instruções aos autores baseada na estrutura dos requisitos de Vancouver / Brazilian scientific journals in surgery. III: analysis of the instructions for authors based on Vancouver uniform requirements

OBJETIVO: Analisar as instruções aos autores contidas em revistas científicas nacionais que publicam artigos da área cirúrgica, buscando traçar um panorama da situação, bem como fazer recomendações para editores e autores. MÉTODOS: Foram analisadas as Instruções aos Autores de 20 revistas e classificadas segundo os Requisitos de Vancouver. Foram consultadas na SciELO, nos sites das revistas ou no último fascículo impresso disponível na coleção da BIREME. Os resultados foram analisados descritivamente, sendo considerada a freqüência de cada variável. RESULTADOS: 75 por cento recomendam a adoção dos Requisitos de Vancouver, embora nem sempre indiquem a versão atualizada; 90 por cento das revistas fizeram menção ao cumprimento de princípios éticos de pesquisa, 80 por cento ao processo de revisão por pares e 70 por cento ao conflito de interesses e à cessão dos direitos autorais. Os idiomas estrangeiros aceitos com maior freqüência foram inglês (80 por cento) e espanhol (30 por cento). Todas as revistas publicam artigos originais, seguidos pelos de revisão (90 por cento), relatos de caso (80 por cento), cartas ao editor (70 por cento) e artigos de atualização (55 por cento). A nomenclatura adotada para as seções das revistas é muito variada. CONCLUSÃO: Ainda que a liberdade editorial e independência de cada editor devam ser respeitadas, há critérios aceitos internacionalmente que devem ser observados. As tendências atuais, visando à priorização das revistas eletrônicas em acesso aberto, implicarão em modificações no processo de editoração das revistas científicas.

PURPOSE: To analyze the instructions for authors of Brazilian scientific journals in the surgery field, in order to describe the present situation, as well to make recommendations for editors and authors. METHODS: Instruction for authors of 20 journals were analyzed and classified following Vancouver requirements. Instructions were taken from SciELO, from the journals’ homepage, or from the last printed issue available in BIREME’s collection. Results were descriptively analyzed, considering the frequency of each variable. RESULTS: 75 percent of the journals recommended ICMJE Uniform Requirements, although not always the newest version was indicated; 90 percent of the journals mentioned ethical research principles, 80 percent the peer-review process and 70 percent the conflict of interests and the author rights transfer agreement. Foreign languages frequently accepted were English (80 percent) and Spanish (30 percent). All journals publish original papers, followed by reviews (90 percent), case reports (80 percent), letters to the editor (70 percent), and clinical updates or continuing education (55 percent). The nomenclature for the sections varied among journals. CONCLUSION: Even though publishing freedom and independence of each publisher must be respected, there are internationally accepted criteria that must be observed. The current trends, towards the prioritization of open access electronic journals, will lead to important changes in the process of publishing scientific journals.