Derivation and validation of a national multicenter mortality risk stratification model - the ExCare model: a study protocol.

INTRODUCTION: Surgical care is essential for proper management of various diseases. However, it can result in unfavorable outcomes. In order to identify patients at higher risk of complications, several risk stratification models have been developed. Ideally, these tools should be simple, reproducible, accurate, and externally validated. Unfortunately, none of the best-known risk stratification instruments have been validated in Brazil. In this sense, the Ex-Care model was developed by retrospective data analysis of surgical patients in a major Brazilian university hospital. It consists of four independent predictors easily collected in the preoperative evaluation, showing high accuracy in predicting death within 30 days after surgery. OBJECTIVES: To update and validate a Brazilian national-based model of postoperative death probability within 30 days based on the Ex-Care model. Also, to develop an application for smartphones that allows preoperative risk stratification by Ex-Care model. METHODS: Ten participating centers will collect retrospective data from digital databases. Variables age, American Society of Anesthesiologists (ASA) physical status, surgical severity (major or non-major) and nature (elective or urgent) will be evaluated as predictors for in-hospital mortality within 30 postoperative days, considered the primary outcome. EXPECTED RESULTS: We believe that the Ex-Care model will present discriminative capacity similar to other classically used scores validated for surgical mortality prediction. Furthermore, the mobile application to be developed will provide a practical and easy-to-use tool to the professionals enrolled in perioperative care.

Evaluation of a Brazilian's cardiovascular anesthesia fellowship by its former trainees / Avaliação do programa de aprimoramento em anestesia cardiovascular por seus ex-estagiários

Abstract Background: After advancement of cardiovascular surgery, there is also exponential development of anesthetic techniques in this field. Patients with increasing clinical complexity challenge cardiac anesthesiologists to keep constantly updated. An evaluation of Brazilian's cardiovascular anesthesia fellowship at Dante Pazzanese Institute of Cardiology has been made and information has been collected to evaluate the fellowship program in cardiovascular anesthesia. Method: Target participants were made up of former fellowships, contacted via e-mail containing an invitation to voluntarily participate. Explanation of the survey's purpose was provided. This communication was signed by the authors and contained a hyperlink to the survey, which was constructed on and hosted on a web platform. The survey was composed of 10 objectives questions designed to describe training and subsequent career. Results: The adjusted survey response rate was 71%. Two-thirds of respondents agreed that fellowship training provided them an advantage in the job market and 93% of respondents currently work with cardiac anesthesia. At least 87% of participants would recommend the course to other anesthesiologists. Conclusion: Fellowship graduates judge their technical training as excellent and incorporated the knowledge acquired in their daily practice. However, there are improvements to be made. We believe this document may be useful as a reference for other institutions to develop their own cardiovascular anesthesia fellowship programs.

Resumo Justificativa: Com o avanço da cirurgia cardiovascular nos últimos anos, houve também um desenvolvimento exponencial das técnicas anestésicas. Pacientes com complexidade clínica crescente desafiam os anestesiologistas cardíacos a se manterem constantemente atualizados. Uma avaliação do programa de aprimoramento em anestesia cardiovascular brasileira do Instituto Dante Pazzanese de Cardiologia foi feita e informações foram coletadas para avaliar o programa. Método: Os participantes-alvo eram formados por ex-aprimorandos, contatados via e-mail com um convite para participação voluntária. A explicação do objetivo da pesquisa foi fornecida. Essa comunicação foi assinada pelos autores e continha um link para a pesquisa, que foi construída e hospedada em uma plataforma web. A pesquisa foi composta por 10 questões objetivas destinadas a descrever o treinamento e a carreira subsequente. Resultados: A taxa de resposta ajustada para a pesquisa foi de 71%. Dois terços dos entrevistados concordaram que o treinamento do programa lhes proporcionou uma vantagem no mercado de trabalho e 93% dos entrevistados trabalham atualmente com anestesia cardíaca. Pelo menos 87% dos participantes recomendariam o curso a outros anestesiologistas. Conclusão: Os graduados do programa de aprimoramento julgam sua formação técnica como excelente e incorporaram os conhecimentos adquiridos em sua prática diária. No entanto, há melhorias a serem feitas. Acreditamos que este documento possa ser útil como referência para outras instituições desenvolverem seus próprios programas de aprimoramento em anestesia cardiovascular.

Predictors of in-hospital mortality in patients undergoing elective surgery in a university hospital: a prospective cohort / Preditores de mortalidade intra-hospitalar em pacientes submetidos a cirurgias não eletivas em um hospital universitário: uma coorte prospectiva

Abstract Introduction Morbidity and mortality associated with urgent or emergency surgeries are high compared to elective procedures. Perioperative risk scores identify the non-elective character as an independent factor of complications and death. The present study aims to characterize the population undergoing non-elective surgeries at the Hospital de Clínicas de Porto Alegre and identify the clinical and surgical factors associated with death within 30 days postoperatively. Methodology A prospective cohort study of 187 patients undergoing elective surgeries between April and May 2014 at the Hospital de Clínicas, Porto Alegre. Patient-related data, pre-operative risk situations, and surgical information were evaluated. Death in 30 days was the primary outcome measured. Results The mean age of the sample was 48.5 years, and 84.4% of the subjects had comorbidities. The primary endpoint was observed in 14.4% of the cases, with exploratory laparotomy being the procedure with the highest mortality (47.7%). After multivariate logistic regression, age (odds ratio [OR] 1.0360, p < 0.05), anemia (OR 3.961, p < 0.05), acute or chronic renal insufficiency (OR 6.075, p < 0.05), sepsis (OR 7.027, p < 0.05), and patient-related risk factors for mortality, in addition to the large surgery category (OR 7.502, p < 0.05) were identified. Conclusion The high mortality rate found may reflect the high complexity of the institution's patients. Knowing the profile of the patients assisted helps in the definition of management priorities, suggesting the need to create specific care lines for groups identified as high risk in order to reduce perioperative complications and deaths.

Resumo Introdução Quando comparada a procedimentos eletivos, a morbimortalidade associada às cirurgias de urgência ou emergência é alta. Escores de risco perioperatório identificam o caráter não eletivo como fator independente de complicações e morte. O presente estudo objetiva caracterizar a população submetida a cirurgias não eletivas no Hospital de Clínicas de Porto Alegre e identificar fatores clínicos e cirúrgicos associados à morte em 30 dias no pós-operatório. Metodologia Coorte prospectiva de 187 pacientes submetidos a cirurgias não eletivas entre abril e maio de 2014 no Hospital de Clínicas de Porto Alegre. Avaliaram-se dados relacionados ao paciente, situações de risco pré-operatórias e informações do âmbito cirúrgico. Mensurou-se óbito em 30 dias como desfecho primário. Resultados A média de idade da amostra foi 48,5 anos; 84,4% dos indivíduos apresentavam comorbidades. O desfecho primário foi observado em 14,4% dos casos, laparotomia exploradora foi o procedimento com maior mortalidade (47,7%). Após regressão logística multivariada, identificaram-se idade (odds ratio [OR] 1.0360, p < 0,05), anemia (OR 3.961, p < 0,05), insuficiência renal aguda ou crônica agudizada (OR 6.075, p < 0,05) e sepse (OR 7.027, p < 0,05) como os fatores de risco relacionados ao paciente significativos para mortalidade, além da categoria cirurgia de grande porte (OR 7.502, p < 0,05). Conclusão A elevada taxa de mortalidade encontrada pode refletir a alta complexidade dos pacientes da instituição. O conhecimento do perfil dos pacientes atendidos auxilia na definição de prioridades de gerenciamento, sugere a necessidade de criação de linhas de cuidado específicas para grupos identificados como de alto risco, a fim de reduzir complicações e óbitos no perioperatório.

[Evaluation of a Brazilian's cardiovascular anesthesia fellowship by its former trainees]. / Avaliação do programa de aprimoramento em anestesia cardiovascular por seus ex­estagiários.

BACKGROUND: After advancement of cardiovascular surgery, there is also exponential development of anesthetic techniques in this field. Patients with increasing clinical complexity challenge cardiac anesthesiologists to keep constantly updated. An evaluation of Brazilian's cardiovascular anesthesia fellowship at Dante Pazzanese Institute of Cardiology has been made and information has been collected to evaluate the fellowship program in cardiovascular anesthesia. METHOD: Target participants were made up of former fellowships, contacted via e-mail containing an invitation to voluntarily participate. Explanation of the survey's purpose was provided. This communication was signed by the authors and contained a hyperlink to the survey, which was constructed on and hosted on a web platform. The survey was composed of 10 objectives questions designed to describe training and subsequent career. RESULTS: The adjusted survey response rate was 71%. Two-thirds of respondents agreed that fellowship training provided them an advantage in the job market and 93% of respondents currently work with cardiac anesthesia. At least 87% of participants would recommend the course to other anesthesiologists. CONCLUSION: Fellowship graduates judge their technical training as excellent and incorporated the knowledge acquired in their daily practice. However, there are improvements to be made. We believe this document may be useful as a reference for other institutions to develop their own cardiovascular anesthesia fellowship programs.

Vasodilator Agents in Pediatric Cardiac Surgery with Cardiopulmonary Bypass

Surgical management of congenital heart disease has become regularly performed in tertiary hospitals worldwide. Although routinely needed, cardiopulmonary bypass (CPB) deleteriously affects physiological processes being among the main causes of increased morbidity in cardiac surgery, especially in neonates and children.Recent studies have shown that vasodilator agents’ use during CPB improved peripheral tissue perfusion while maintaining high flow during bypass. Hence, an improvement in perfusion and oxygenation of the skin, musculature and intestinal mucosa has been demonstrated, with favorable result throughout the postoperative period.These agents, by reducing systemic vascular resistance (SVR), lead to greater peripheral blood flow, improvement in peripheral perfusion, decreased base deficit and lactic acidosis and therefore improved respiratory and circulatory status.The present article reviews the main aspects of vasodilator agents most commonly used in pediatric cardiac surgery with CPB, including: chlorpromazine, phentolamine, phenoxybenzamine, sodium nitroprusside, volatile anesthetic agents, calcium channel blockers, angiotensin blockers and inodilators.