Video-Assisted Jejunostomy Tube Placement With Two Portals: Surgical Technique in Ten Steps.

Objectives. Endoscopic gastrostomy occasionally presents limitations such as costs, availability of equipment and special materials, and difficult access to the gastric cavity in the setting of obstructive esophageal tumors. Open jejunostomies present high rates of postoperative complications and limited capacity for abdominal evaluation due to reduced incision size. Thus, to reduce procedure-related complications and overall costs and provide a thorough intraoperative evaluation of the peritoneal cavity, we present the following simplified technique. Methods. Video-assisted jejunostomy in ten steps. Results. The use of this Video-assisted laparoscopic technique proves to be a safe, viable alternative, with cost reduction, decreased use of disposable materials, shortened operative time, and accelerated recovery, in addition to increased technical ease and wide applicability across a variety of hospital settings.

Liver resections for metastasis: surgical outcomes of a single center academic institution.

BACKGROUND: Hepatic metastasis are frequent and liver resection may be an option for some cases, despite the high complexity of the procedure and the possibility of postoperative complications. METHODS: This retrospective comparative descriptive study aims to evaluate a series of 86 consecutive liver resections (LRs) performed for the treatment of metastatic liver tumors, comparing the results between patients undergoing major and minor LR. All patients submitted to LR from October 2010 to July 2015 at the Erasto Gaertner Hospital in Curitiba-PR were included. Quantitative numerical variables were analyzed with the Student t-test. The nonparametric Mann-Whitney U test was used for numerical variables of non-normal distribution. Categorical variables were analyzed with the Chi-square test with Fisher's correction. The data were analyzed with the SPSS 23.0 and STATA 15 programs, being p < 0.05 considered statistically significant. RESULTS: Eighty-six LR were performed, 56 cases by colorectal metastasis. The major LR corresponded to 68 cases, with 13.2% of Clavien-Dindo III-V complications and 2.9% of reoperation rate. Eighteen minor LR were performed and one patient had a postoperative complication requiring reoperation. CONCLUSION: Preoperative elevation of transaminases and jaundice negatively influence surgical outcomes in patients undergoing LR. Tumors greater than 3 cm presented worse postoperative survival. Major LR did not significantly increase the surgical morbidity rate. INSTITUTIONAL REVIEW BOARD REGISTRATION: 1.122.319/2015.

Treatment of esophageal cancer: surgical outcomes of 335 cases operated in a single center.

OBJECTIVES: the surgical approach persists as the main treatment for esophageal cancer. This study compares the patients of the same institution over time at three different times. METHODS: this is a retrospective, observational, descriptive study comparing the surgical outcomes obtained by the Division of Surgical Oncology of Erasto Gaertner Hospital. The sample was divided into Period 1 (1987-1997), Period 2 (1998-2003) and Period 3 (2007-2015). Survival rates and disease-free survival were estimated by the Kaplan-Maier method. Survival predictors were identified with Cox regression. ANOVA test was used for comparison between groups. Data were analyzed with SPSS 25.0 and STATA 16, and p<0.05 was considered statistically significant. RESULTS: a total of 335 patients underwent esophagectomy or esophagogastrectomy. When the clinical characteristics of the 3 groups were compared, there was no statistically significant difference. Neoadjuvance was significantly higher in Period 3 (55.4% of patients). We found a histological change in the diagnosis over time, with a significant increase in adenocarcinoma. Morbidity and mortality rates were higher in Period 3. The main complications were pulmonary and anastomotic fistulas. Overall survival in 5 years increased over time, reaching 59.7% in Period 3. CONCLUSIONS: better neoadjuvant treatment contributed to increase the global survival of patients, despite greater rate of immediate complications to surgery.

Quality management in surgery: improving clinical and surgical outcomes.

Quality is a term used by various specialists, from different perspectives, having as a common point to identify focuses that promote their development in institutional management. Quality processes allow us to improve assistance, reducing complication and death rates and reducing costs. Currently, the positive experience of the patient is highly valued and should be sought by all institutions. The benefits of quality procedures are extensive. There is evidence of lower complication and mortality rates, cost reduction, uniformity of care, improved communication and opportunity for health education. There is a need for financial investment by the institutions, but they can be converted in the future. The idea that these are just bureaucratic steps must be fought because individualistic attitudes are no longer part of safe medicine. The success of a quality process requires interdisciplinarity, integration with quality offices for effective communication. The implementation of feasible attitudes should be sought, with a high adherence rate to seek patient satisfaction and safety. We will address historical aspects, the requirements for the implementation of a quality program, the concepts of indicators and the aspects that influence the quality in surgery, in addition to presenting benefits that such a program can offer to the surgeon and the institution.

The history of quality and safety of the surgical patient: from the initial standards to the present day.

There are currently various concepts related to quality, which have been implemented by many hospitals and other healthcare institutions. The search for continuous improvement, the implementation of a quality culture and hospital accreditation have also been common, in these institutions. However, the history of hospital audits and accreditation is complex and full of dynamic concepts. The American College of Surgeons was pioneer in publishing, more than a century ago, the first document pertaining quality standards. After that, various programs and concepts have been developed and remodeled by distinct entities. In this article, we briefly review the history of quality in the world and Brazil. We also discuss related concepts regarding its assessment in healthcare.

Overview and perspectives about the robotic surgical certification process in Brazil: the new statement and a national web-survey.

OBJECTIVE: to appraise the general profile of the Brazilian robotic surgeon and the acknowledgment of the new certification process for robotic surgery upon the Associação Médica Brasileira (AMB - Brazilian Medical Association) statement. According to the AMB statement, medical societies and proctors have to achieve leading roles in training and certification of surgeons, acting in partnership with industry. METHODS: a national web-based survey was promoted by the Colégio Brasileiro de Cirurgiões (CBC - Brazilian College of Surgeons) among their members. RESULTS: the 294 answers were split into two groups: 133 (45.3%) who had robotic console certification, and 161 (54.8%) who did not have it. The overall median age was 46, but the non-robotic group presented more surgeons with at least 30 years of experience than to the robotic group (32.3% versus 23.3%, p=0.033). Surgeons with robotic certification more frequently work in a city with at least one million inhabitants than surgeons who were not certified (85.7 versus 63.4%, p<0.001). The majority of surgeons in both groups have similar positioning for all main points of the statement. However, the agreement proportions for the preceptors responsibility during the procedures were higher among non-robotic surgeons that expected the preceptor to assume co-responsibility for the procedure (85% versus 60.9%, p<0.001), and intervene during the procedure as much as necessary (97.5% versus 91.7%, p=0.033). CONCLUSION: the overall agreement of the answers to the AMB statement seems to be a promising pathway to increase the participation of the medical entities into the robotic certification in Brazil.

Alternative Biomarkers to Predict Tumor Biology in Hepatocellular Carcinoma.

Hepatocellular carcinoma (HCC) is the most frequent primary malignant liver tumor, with more than 800,000 new cases diagnosed each year and with high mortality, ranking fourth in the world in cancer deaths. The worst prognosis is related to the late diagnosis, in which the tumor is at an advanced stage and curative treatments are not efficient in terms of increasing overall survival. Currently, screening and monitoring tests based on current guidelines have limited accuracy, which points to the need for the development of new biomarkers that improve HCC detection as well as its early diagnosis. This review will discuss the five phases of development of a biomarker, from its discovery to its application in clinical practice, and indicate the main biomarkers per development phase. Potential emerging technologies such as "Radiomics", "Proteomics" and "Metabolomics" will also be discussed, which should serve as tools for the elucidation of tumor heterogeneity, as well as provide data for future studies on HCC biomarkers.

Educational note: teaching and training in robotic surgery. An opinion of the Minimally Invasive and Robotic Surgery Committee of the Brazilian College of Surgeons.

With the expansion of robotic surgical procedures, the acquisition of specific knowledge and skills for surgeons to reach proficiency seems essential before performing surgical procedures on humans. In this sense, the authors present a proposal to establish a certification based on objective and validated criteria for carrying out robotic procedures. A study was carried out by the Committee on Minimally Invasive and Robotic Surgery of the Brazilian College of Surgeons based on a reviewing strategy of the scientific literature. The study serves as a reference for the creation of a standard for the qualification and certification in robotic surgery according to a statement of the Brazilian Medical Association (AMB) announced on December 17, 2019. The standard proposes a minimum curriculum, integrating training and performance evaluation. The initial (pre-clinical) stage aims at knowledge and adaptation to a specific robotic platform and the development of psychomotor skills based on surgical simulation. Afterwards, the surgeon must accompany in person at least five surgeries in the specialty, participate as a bedside assistant in at least 10 cases and perform 10 surgeries under the supervision of a preceptor surgeon. The surgeon who completes all the steps will be considered qualified in robotic surgery in his specialty. The final certification must be issued by the specialty societies affiliated to AMB. The authors conclude that the creation of a norm for habilitation in robotic surgery should encourage Brazilian hospitals to apply objective qualification criteria for this type of procedure to qualify assistance.

Surgical cricothyroidostomy. Analysis and comparison between teaching and validation models of simulator models.

OBJECTIVE: to compare the acquisition and retention of knowledge about surgical cricothyroidostomy by the rapid four-step technique (RFST), when taught by expository lecture, low fidelity and high-fidelity simulation models. METHODS: ninety medical students at UFPR in the first years of training were randomized assigned into 3 groups, submitted to different teaching methods: 1) expository lectures, 2) low-fidelity simulator model, developed by the research team or 3) high-fidelity simulator model (commercial). The procedure chosen was surgical cricothyroidostomy using the RFST. Soon after lectures, the groups were submitted to a multiple-choice test with 20 questions (P1). Four months later, they underwent another test (P2) with similar content. Analysis of Variance was used to compare the grades of each group in P1 with their grades in P2, and the grades of the 3 groups 2 by 2 in P1 and P2. A multiple comparisons test (post-hoc) was used to check differences within each factor (test and group). Statistical significance was considered when p<0.05. Statistical analysis was performed in the statistical software R version 3.6.1. RESULTS: each group was composed of 30 medical students, without demographic differences between them. The mean scores of the groups of the expositive lecture, of the simulator of low fidelity model and of high-fidelity simulator model in P1 were, respectively, 75.00, 76.09, and 68.79, (p<0.05). In P2 the grades were 69.84, 75.32, 69.46, respectively, (p>0.05). CONCLUSIONS: the simulation of low fidelity model was more effective in learning and knowledge retention, being feasible for RFST cricothyroidostomy training in inexperienced students.

Psychological aspects and quality of life in Medical Residency. / Aspectos psicológicos e qualidade de vida na Residência Médica.

OBJECTIVE: to evaluate the perception of quality of life among residents in the first year of Medical Residency compared to the one among residents in other years of training, given the importance of this issue in health. METHODS: a comparative and cross-sectional analytical study performed from February to April 2016 in a reference tertiary trauma hospital in Brazil. Resident physicians were voluntarily submitted to an online questionnaire on quality of life (called WHOQOL-BREF), validated by World Health Organization (WHO). They were divided into two groups: first year of residency (R1) and other years of residency. RESULTS: ninety-seven residents of several medical specialties answered the questionnaire. Of these, 59 were men and 38 were women. The mean age was 27.7 years. First-year residents accounted for 49.5% of the interviewees. Overall, quality of life was considered regular in both groups. In relation to psychological domain, there was a significant difference between the R1 group (with worse scores in this domain) and the non-R1 group (p<0.0000001). CONCLUSION: first-year residents' quality of life is worse than the one of the residents from other years, having a significant variation of positive feelings, learning capacity, memory, thought and concentration, self-esteem, body image and appearance, and negative feelings.

OBJETIVO: avaliar a percepção de qualidade de vida entre residentes no primeiro ano de Residência Médica em relação aos residentes de outros anos, dada a importância dessa questão na saúde. MÉTODOS: estudo comparativo, transversal e analítico realizado no período de fevereiro a abril de 2016, realizado em um hospital de trauma terciário de referência do Brasil. Médicos residentes foram submetidos voluntariamente ao questionário validado da Organização Mundial de Saúde (OMS) sobre qualidade de vida, o WHOQOL-BREF, com preenchimento online. Os residentes foram divididos em dois grupos: primeiro ano de residência (R1) e outros anos de residência. RESULTADOS: noventa e sete residentes de diversas especialidades médicas responderam ao questionário. Desses, 59 eram homens e 38, mulheres. A média de idade foi de 27,7 anos. Residentes do primeiro ano representaram 49,5% dos entrevistados. A qualidade de vida de maneira global foi considerada regular em ambos os grupos. Em relação ao domínio psicológico, houve diferença significativa entre o R1 (este, com piores escores neste domínio) e os demais anos de residência (p<0,0000001). CONCLUSÃO: a qualidade de vida dos residentes do primeiro ano é pior em relação aos demais, tendo uma variação significativa de sentimento positivo, capacidade de aprender, memória, pensamento e concentração, autoestima, imagem corporal e aparência e sentimentos negativos em relação aos médicos residentes dos outros anos.

Safety and quality in surgery: surgeons' perception in Brazil. / Segurança e qualidade em cirurgia: a percepção de cirurgiões no Brasil.

OBJECTIVE: to evaluate the perception of surgeons, members of the Brazilian College of Surgeons (CBC), on safety and quality issues in surgery, based on projects of Brazilian Ministry of Health (MS), CBC, World Health Organization (WHO), and American College of Surgeons (ACS). METHODS: a questionnaire based on WHO, CBC, and ACS initiatives was sent to all active and non-active CBC members, using Survey Monkey, in March 2018. RESULTS: out of 7,100 members, 171 professionals answered the questionnaire. Out of these, the majority (63.2%) declared to perform general surgery, 88.9% indicated knowing the project called Safe Surgery developed by MS, 73.1%, the CBC manual, and 14.6%, the ACS Strong for Surgery. Among those who indicated knowing the MS project, 73.1% said that they were accustomed to use it as a routine, and, among those who indicated knowing the CBC manual, 46.2% said that they were accustomed to use it. Most of the surgeons (81.3%) indicated that they had experienced severe surgical failures, being failures related to surgical material (49.7%) and presence of foreign bodies (8.2%) the most common ones. There were distinct opinions on who was responsible for checking over the checklist. CONCLUSION: the importance of safety and quality in surgery is well known by surgeons, but the practice is varied. Serious adverse events had been experienced by many surgeons, mainly related to surgical material and foreign bodies. The concept of interdisciplinarity did not seem to be common practice. Data indicated the need to develop education projects and the obligation of audits.

OBJETIVO: avaliar a percepção dos cirurgiões, membros do Colégio Brasileiro de Cirurgiões (CBC), sobre temas de segurança e qualidade em cirurgia, com base em Projetos do Ministério da Saúde (MS), do CBC, da Organização Mundial de Saúde (OMS) e do Colégio Americano de Cirurgiões (ACS). MÉTODOS: questionário com base nas iniciativas da OMS, do CBC e do ACS foi enviado pelo Survey Monkey a todos os sócios, ativos e não ativos, do CBC em março de 2018. RESULTADOS: responderam ao questionário 171 profissionais dentre os 7.100 sócios. Desses, a maioria (63,2%) declarou praticar Cirurgia Geral, 88,9% indicaram conhecer o Projeto Cirurgia Segura do MS, 73,1%, o Manual do CBC e 14,6%, o Strong for Surgery do ACS. Entre os que conhecem o Projeto do MS, 73,1% disseram usá-lo como rotina e, entre os que conhecem o Manual do CBC, 46,2% usam-no. A maior parte dos cirurgiões (81,3%) indicou que já vivenciou falha cirúrgica grave, sendo aquelas relacionadas com material cirúrgico (49,7%) e presença de corpos estranhos (8,2%), isoladamente, as mais comuns. Houve opiniões distintas sobre a responsabilidade de conferência do checklist. CONCLUSÃO: a importância da segurança e qualidade em cirurgia é conhecida pelos cirurgiões, mas a prática é variada. Eventos adversos graves foram vivenciados por muitos cirurgiões, principalmente relacionados com material cirúrgico e corpos estranhos. O conceito de interdisciplinaridade parece não ser prática comum. Os dados indicam a necessidade de desenvolver projetos de educação e a obrigatoriedade de auditorias.

Abbreviated preoperative fasting favours postoperative oral intake at lower hospital admission costs for cancer patients. / Jejum pré-operatório abreviado favorece realimentação pós-operatória com menor custo de internação hospitalar em pacientes oncológicos.

OBJECTIVE: to evaluate the feasibility of abbreviated fasting in oncologic colorectal surgeries, as well as the impact on the surgical outcome of the patients. METHODS: prospective randomized comparative study with patients undergoing elective colorectal cancer surgeries from May to September 2017. Patients were randomized electronically into two groups according to the preoperative fast to be adopted: conventional or abbreviated. RESULTS: of the 33 patients included, 15 followed the abbreviated fasting protocol and 18 the conventional fasting. Both groups had comparable profiles. No patient underwent mechanical preparation of the colon. In 69.7% of the cases, surgery involved low rectal dissection. The procedures were equivalent in relation to intraoperative variables and severe complications. The time to achieve complete oral intake was shorter for abbreviated fasting (10 versus 16 days, p=0.001), as well as the length of inhospital stay (2 versus 4 days, p=0.009). Hospital costs were lower in the abbreviated fasting (331 versus 682 reais, p<0.001). The univariable analysis revealed a correlation between complete oral intake and abbreviated fasting [HR 0.29 (IC95%: 0.12-0.68] and abdominal distension [HR 0.12 (IC95% 0.01-0.94)]. After multivariable analysis, abbreviated fasting presented a lower time for complete oral intake [HR 0.39 (IC95%: 0.16-0.92]. CONCLUSION: the abbreviated preoperative fasting favors the metabolic-nutritional recovery, reducing the time for complete oral intake. The implementation of the abbreviation protocol reduces hospital admission costs.

OBJETIVO: avaliar a viabilidade de abreviação do jejum em cirurgias colorretais oncológicas, bem como, o impacto no desfecho cirúrgico dos pacientes. MÉTODOS: estudo prospectivo comparativo randomizado com pacientes submetidos à cirurgias eletivas colorretais, por câncer, no período de maio a setembro de 2017. Os pacientes foram randomizados eletronicamente em dois grupos de acordo com o jejum pré-operatório a ser adotado: convencional ou abreviado. RESULTADOS: dos 33 pacientes incluídos, 15 seguiram o protocolo de jejum abreviado e 18 de jejum convencional. Ambos os grupos apresentaram perfis comparáveis. Nenhum paciente foi submetido a preparo mecânico do cólon. Em 69,7% dos casos, a cirurgia envolveu dissecção baixa do reto. Os procedimentos foram equivalentes em relação às variáveis intraoperatórias e complicações graves. O tempo para atingir realimentação plena foi menor para o jejum abreviado (10 versus 16 dias, p=0,001), assim como, o tempo de internação hospitalar (2 versus 4 dias, p=0,009). Os custos hospitalares foram menores no jejum abreviado (331 versus 682 reais, p<0,001). A análise univariável revelou correlação entre a realimentação plena e o jejum abreviado [HR 0,29 (IC95%: 0,12-0,68] e com a distensão abdominal [HR 0,12(IC95%: 0,01-0,94)]. Após análise multivariável, o jejum abreviado apresentou menor tempo para realimentação plena [HR 0,39(IC95%: 0,16-0,92]. CONCLUSÃO: o jejum pré-operatório abreviado favorece a recuperação metabólico-nutricional, diminuindo o tempo para realimentação plena. A implantação do protocolo de abreviação do jejum reduz custos de internação hospitalar.

Influence of trauma origin site on admission rates of patients submitted to emergency laparotomy. / Influência do local de origem do trauma nos índices de admissão de pacientes submetidos à laparotomia de emergência.

OBJECTIVE: to evaluate the influence of the site of trauma occurrence on the trauma scores of patients submitted to emergency laparotomy. METHODS: this is a retrospective, observational, analytical study. We included 212 patients who underwent exploratory laparotomies in the period of January 2015 and December 2017. We obtained information about the accident site and vital data of the patients based on data collection through electronic and physical records. We analyzed the trauma indices of patients from Curitiba and its Metropolitan Region and the place where the patient was rescued (physical establishment or public road). RESULTS: among the 212 patients studied, 184 (86.7%) were brought by the Prehospital Care Service from the city of Curitiba, and 28 (13.3%), from the Metropolitan Region of Curitiba. Twenty-five patients (17.6%) were rescued in physical establishments, while 117 (82.4%) were rescued on public roads. We observed higher values ​​of Injurity Severity Scores (ISS) in patients coming from the Metropolitan Region than in those coming from Curitiba (29.78 vs 22.46, P=0.009), but higher values ​​of Trauma and Injury Severity Scores (TRISS) in patients from Curitiba than the ones from the Metropolitan Region (90.62 vs 81.30, P=0.015). Patients rescued in public roads presented lower Revised Trauma Scores (RTS) (6.96 vs 7.65, P=0.024) and TRISS (86.42 vs 97.21; P=0.012). CONCLUSION: trauma victims from sites more distant from the referral center and rescued on public roads presented worse prognosis.

OBJETIVO: avaliar a influência do local de ocorrência do trauma nos escores de trauma de pacientes submetidos à laparotomia de emergência. MÉTODOS: estudo retrospectivo observacional analítico. Foram incluídos 212 pacientes submetidos à laparotomias exploratórias no período de janeiro de 2015 e dezembro de 2017. Informações sobre o local do acidente e dados vitais dos pacientes foram obtidas com base na coleta de dados por meio de prontuários eletrônicos e físicos. Foram analisados os índices de trauma de pacientes provenientes de Curitiba e Região Metropolitana e o local em que o paciente foi socorrido (estabelecimento físico ou via pública). RESULTADOS: entre os 212 pacientes estudados, 184 (86,7%) foram trazidos pelo Serviço de Atendimento Pré-Hospitalar provenientes da cidade Curitiba e 28 (13,3%) provenientes de Região Metropolitana de Curitiba. Foram socorridos em estabelecimentos físicos 25 pacientes (17,6%), enquanto 117 (82,4%) foram socorridos em via pública. Observou-se maiores valores de ISS (Injurity Severity Score) dos pacientes procedentes da Região Metropolitana em relação aos procedentes de Curitiba (29,78 vs 22,46, P=0,009), enquanto valores maiores do TRISS (Trauma Trauma and Injury Severity Score) foram observados em pacientes procedentes de Curitiba em relação aos da Região Metropolitana (90,62 vs 81,30; P=0,015). Pacientes socorridos em via pública apresentaram menor valor de RTS (Revised Trauma Score) (6,96 vs 7,65; P=0,024) e TRISS (86,42 vs 97,21; P=0,012). CONCLUSÃO: pacientes vítimas de trauma procedentes de locais mais distantes do atendimento no centro de referência apresentaram pior prognóstico à admissão e foi observado pior prognóstico em pacientes socorridos em via pública.

Relationship between learning styles and simulation in surgery / Relação entre os estilos de aprendizagem e simulação em cirurgia

Abstract: Introduction: It was found that the good performance in conventional techniques was not transferable to minimally-invasive alternatives, and then simulators were created for improved learning. Objective: To assess whether robotic virtual reality simulation conditions ability for laparoscopy in medical students, associating the VARK tool and Mind Styles to determine whether there is a correlation between learning styles and the ability to develop these skills. Methods: Randomization of 3 groups of medical students was performed, where one of the groups performed a simulation of a surgical knot exercise in the laparoscopy box and another, the same exercise on the robot console. The third group did not simulate. All participants took a practical test in the laparoscopy box and their performances were evaluated. Moreover, a pre-test and a post-test were applied, in addition to the VARK and mind styles methods, to assess whether there was a difference in performance between the different learning styles. Results: The practical test scores were relatively homogeneous between the groups and between the Mind Styles and VARK categories, with no significant difference being found between the groups; therefore, it was not possible to demonstrate that learning styles interfered with the results of this study. There was only a significant difference between the pre-test scores of at least one pair of the groups and between the Laparoscopy and Robotics groups, with a p-value of 0.038. Conclusion: There was no statistical significance between learning styles and performance regarding the proposed tasks.

Resumo: Introdução: Constatou-se que o bom desempenho em técnicas convencionais não se transferia para as minimamente invasivas, e, com isso, foram criados os simuladores para melhor aprendizado. Objetivo: Este estudo teve como objetivo avaliar se a simulação em realidade virtual robótica promove habilidade para laparoscopia em acadêmicos de Medicina, associando a ferramenta VARK e o mind styles (GSD) para determinar se há correlação dos estilos de aprendizagem com a capacidade de desenvolver essas habilidades. Método: Realizou-se randomização de três grupos de acadêmicos de Medicina, em que um dos grupos fez simulação de um exercício de nó cirúrgico na caixa de laparoscopia (CL), e outro, o mesmo exercício no console do robô. O terceiro grupo não participou da simulção. Todos os participantes fizeram um teste prático na CL, e as performances deles foram avaliadas. Ademais, foram aplicados um pré-teste e um pós-teste, além do formulário VARK e GSD, para avaliar se havia diferença de performance entre os diferentes estilos de aprendizagem. Resultado: As notas das provas práticas foram relativamente homogêneas entre grupos e entre as categorias de Mind Styles e do VARK. Como não se encontrou diferença significativa entre os grupos, não foi possível demonstrar que os estilos de aprendizagem interferiram nos resultados deste estudo. Houve apenas diferença significativa entre as notas do pré-teste de pelo menos um par de grupos e entre os grupos laparoscopia e robótica com p-valor 0,038. Conclusão: Não houve significância estatística entre os estilos de aprendizagem e o desempenho nas tarefas propostas.

Fatores prognósticos em pacientes com câncer colorretal: análise de sobrevida global e livre de doença / Prognostic factors in patients with colorectal cancer: analysis of overall and disease-free survival

Objetivos: avaliar o impacto de variáveis clínicas e tumorais sobre a sobrevida global e a sobrevida livre da doença em pacientes com câncer colorretal atendidos em um hospital especializado em oncologia, em Curitiba, Paraná, Brasil. Métodos: estudo de coorte retrospectivo com análise do registro hospitalar de câncer e de prontuários de pacientes com câncer colorretal tratados entre 2015 e 2016, com acompanhamento até janeiro de 2022. A curva de Kaplan-Meier e o modelo de Cox, com apresentação do RR e IC95%, foram empregados nas análises. Resultados: foram incluídos no estudo 235 pacientes, dos quais 126 (53,6%) eram do sexo masculino, 204 (86,8%) tinham idade igual ou superior a 50 anos ao diagnóstico e 125 (53,2%) receberam inicialmente o diagnóstico de tumor de cólon. O risco de morte e de recorrência foram maiores em pacientes com estadiamento IV (RR = 2,77; IC95% = 1,57-3,85 e RR = 3,98; IC95% = 1,15-13,79), tumor no reto (RR = 2,04; IC95% = 1,24-3,38 e RR= 2,25; IC95% = 1,40-3,60) e metástase nos linfonodos regionais (RR = 2,26; IC95% = 1,27-4,03 e RR = 2,15; IC95% = 1,24-3,73). O risco de óbito foi elevado em idosos com Índice de Massa Corporal de baixo peso (RR = 3,5; IC95% = 0,9-75). Conclusões: no momento do diagnóstico, fatores tumorais como estadiamento avançado, tumor no reto e a presença de metástase são importantes preditores de mortalidade e recidiva do câncer colorretal, além disso, indicam o Índice de Massa Corporal como potencial variável de pior prognóstico na população idosa com câncer colorretal

Aims: to evaluate the impact of clinical and tumor variables on overall survival and disease-free survival in patients with colorectal cancer treated at a specialized oncology hospital in Curitiba, Paraná. Methods: a retrospective cohort study was carried out with analysis of the câncer hospital registry and medical records of patients with colorectal cancer treated between 2015 and 2016, with follow-up until January 2022. The Kaplan-Meier curve and the Cox model, with presentation of the Hazard Ratio (HR) and confidence interval 95% (95%CI), were used in the analyses. Results: 235 patients were included in the study, 126 (53.6%) males, 204 (86.8%) aged at diagnosis equal to or greater than 50 years and 125 (53.2%) with the initial diagnosis of tumor of colon. The risk of death and recurrence were higher in patients with stage IV (HR = 2.77; 95%CI = 1.57-3.85 and HR = 3.98; 95%CI = 1.15-13.79), tumor in the rectum (HR = 2.04; 95%CI = 1.24-3.38 and HR = 2.25; 95%CI = 1.40-3.60) and regional lymph node metastasis (HR = 2.26; 95%CI = 1.27-4.03 and HR = 2.15; 95%CI = 1.24-3.73). In addition, the risk of death was high in elderly with low weight Body Mass Index (HR =3.5; 95%CI = 0.9-75). Conclusions: at the time of diagnosis, tumor factors such as advanced staging, tumor in the rectum and the presence of metastasis are important predictors of mortality and recurrence of colorectal cancer, in addition, they indicate Body Mass Index as a potential variable of worse prognosis in the elderly population with colorectal cancer

Presentation patterns and outcomes in patients with colorectal cancer seeking the emergency department for consultation

Background: Patients with colorectal cancer may seek the emergency department for symptoms related to chemotherapy and radiotherapy side effects as well as those from the disease itself and from surgery complications. Objectives: To establish the epidemiological and clinical profile of colorectal cancer patients that look for consultations in the emergency department. Methods: Retrospective study of emergency room charts from colorectal cancer patients that consulted in a single oncological hospital for the period of 1 year. Results: Four hundred and forty-six consultations were identified (49.5% males and 50.5% females) with a mean age of 63 years and with advanced disease (most with tumor, node, metastases [TNM] stages III and IV). The most common complaint was abdominal pain (27.5%), followed by nausea (4.7%; more commonly seen in females with p =0.03) and bladder symptoms (4.7%; more commonly seen in males, with p =0.003). Infections (10.3%) and acute abdominal pain (9.1%) were the most frequent diagnoses. About 18% of them were admitted to the hospital and 80% were discharged home. Conclusion: The profile of patients with colorectal cancer seeking the emergency department comprises patients with advanced disease and a similar proportion of males and females. Symptom-driven complaints were the most frequent reason for consultations. (AU)

The role of P16ink4a and P53 immunostaining in predicting recurrence of HG-CIN after conization treatment.

OBJECTIVE: Io evaluate the expression of p16INK4a and p53 biomarkers in conization specimens from patients with high grade cervical intraepithelial neoplasia (HG-CIN), correlating them with the ability to predict the recurrence. METHODS: we conducted a retrospective study of patients with HG-CIN in cervical biopsy treated with conization between January 1999 and January 2006 who had a minimum follow-up of 18 months. The expression of the p16 and p53 was assessed by tissue microarrays and correlated with disease recurrence. For analysis, we used the test of proportions (chi-square), considering value p<0.05, 95% CI and calculations of sensitivity, specificity and accuracy of these immunomarkers in predicting recurrence. RESULTS: the series comprised 83 patients aged between 16 and 86 years (35±11.7), divided into two groups: 30 with HG-CIN recurrence (study group) and 53 without recurrence (control group). Mean age, parity, smoking and conization technique were similar in both groups. The p53 expression was present in 43% of the study group and 57% of the control group, and the p16 was present in 43% of the study group and in 57% of the control group (p>0.05). p53 had a positive predictive value (PPV) of 42% and negative predictive value (NPV) of 73%, sensitivity 70%, specificity of 47% and accuracy of 59%. The p16, PPV 42%, NPV 72%, sensitivity 66%, specificity of 49% and accuracy of 56%. CONCLUSION: immunohistochemistry expression of p53 and p16 showed low sensitivity and low specificity as predictors of HG-CIN recurrence after conization treatment.

Comparison between polypropylene and polypropylene with poliglecaprone meshes on intraperitoneal adhesion formation.

OBJECTIVE: to compare intraperitoneal adhesion formation in rats when using polypropylene and polypropylene with poliglecaprone meshes. METHODS: we used twenty male, Wistar rats, divided in two groups. In group 1, the rats received the polypropylene mesh on their right side and the polypropylene with poliglecaprone mesh on their left side. In group 2 the position of the meshes was inverted. After 30 days, we analyzed the presence or not of adhesion formation, including only those over the meshes. The findings undergone an analysis through the Mann-Whitney test, at a level of significance of p≤0.05. RESULTS: all meshes presented adhesions. We verified that, for the polypropylene meshes, the percentage of their surface covered by adhesions varied from 10.5 to 100%, with an average of 34.07±24.21%, while for the polypropylene with poliglecaprone mesh, the percentage covered by adhesions varied between 8.5% and 100%, with an average of 44.7±32.85% (p=0.12). CONCLUSION: both meshes lead to adhesion formation, none being superior to the other.

Characteristics of the fibroplasia and collagen expression in the abdominal wall after implant of the polypropylene mesh and polypropylene/polyglecaprone mesh in rats.

PURPOSE: To compare fibroplasia and the resistance of the abdominal wall when polypropylene meshes and polypropylene/poliglecaprone are used. METHODS: Seventy-seven male Wistar rats were divided into three groups: Control Group (for resistance); Group E (polypropylene mesh); and Group U (polypropylene/poliglecaprone mesh). The animals in Groups E and U had a standard muscular and aponeurotic defect, with integral peritoneum, and correction with the mesh. Measurements were taken 4, 7, 14, 28 and 56 days after surgery. The resistance, and collagen density were studied. RESULTS: Resistance on the 56th day was similar in both meshes. The gain in resistance described an ascending curve for the polypropylene mesh and was irregular in the case of the polypropylene/poliglecaprone. Fibroplasia showed a gain in type I and type III collagen in both groups (p<0.001). Collagen III stabilized in the 14th day and collagen I continued to ascend. CONCLUSIONS: The gain in resistance of the polypropylene mesh is regular and ascending, whereas the polypropylene/poliglecaprone is not regular. The final resistance of both meshes is similar; the collagen density increases over time, and show the same inflammatory potential.

Treatment of esophageal cancer: surgical outcomes of 335 cases operated in a single center / Tratamento do câncer de esôfago: resultados cirúrgicos de 335 casos operados em um único centro

ABSTRACT Objectives: the surgical approach persists as the main treatment for esophageal cancer. This study compares the patients of the same institution over time at three different times. Methods: this is a retrospective, observational, descriptive study comparing the surgical outcomes obtained by the Division of Surgical Oncology of Erasto Gaertner Hospital. The sample was divided into Period 1 (1987-1997), Period 2 (1998-2003) and Period 3 (2007-2015). Survival rates and disease-free survival were estimated by the Kaplan-Maier method. Survival predictors were identified with Cox regression. ANOVA test was used for comparison between groups. Data were analyzed with SPSS 25.0 and STATA 16, and p<0.05 was considered statistically significant. Results: a total of 335 patients underwent esophagectomy or esophagogastrectomy. When the clinical characteristics of the 3 groups were compared, there was no statistically significant difference. Neoadjuvance was significantly higher in Period 3 (55.4% of patients). We found a histological change in the diagnosis over time, with a significant increase in adenocarcinoma. Morbidity and mortality rates were higher in Period 3. The main complications were pulmonary and anastomotic fistulas. Overall survival in 5 years increased over time, reaching 59.7% in Period 3. Conclusions: better neoadjuvant treatment contributed to increase the global survival of patients, despite greater rate of immediate complications to surgery.

RESUMO Objetivo: A abordagem cirúrgica persiste como tratamento principal para o câncer de esôfago. O presente estudo compara as casuísticas da mesma instituição ao longo do tempo, em três momentos diferentes. Métodos: Estudo descritivo retrospectivo comparativo observacional dos resultados cirúrgicos obtidos pelo Serviço de Cirurgia Oncológica do Hospital Erasto Gaertner. A amostra foi dividida em: Período 1 (1987-1997), Período 2 (1998-2003) e Período 3 (2007-2015). Taxas de sobrevida e sobrevida livre de doença foram estimadas pelo método de Kaplan-Maier. Preditores de sobrevida foram identificados com regressão de Cox. Para a comparação entre os grupos foi utilizado teste ANOVA. Os dados foram analisados com os programas SPSS 25.0 e STATA 16, sendo p<0,05 considerado estatisticamente significativo. Resultados: Ao todo, 335 doentes foram submetidos a esofagectomia ou esofagogastrectomia. Quando comparadas as características clínicas dos 3 grupos não houve diferença estatística significativa. A realização de neoadjuvância foi significativamente maior no Período 3 (55,4% dos pacientes). Verificamos uma mudança histológica do diagnóstico no decorrer do tempo, com um aumento significativo do adenocarcinoma. As taxas de morbimortalidade foram superiores no Período 3. As principais complicações foram pulmonares e de fistulas anastomóticas. A sobrevida global em 5 anos foi aumentando no decorrer do tempo, atingindo 59,7% no Período 3. Conclusões: Melhor tratamento neoadjuvante contribuiu para aumentar a sobrevida global dos pacientes, apesar de maior incidência de complicações imediatas à cirurgia.