ABSTRACT
Resumo Fundamento Os pacientes em pós-operatório (PO) de cirurgia de revascularização miocárdica (CRM) internados em unidade de terapia intensiva (UTI) apresentam risco de complicações que aumentam o tempo de permanência e a morbimortalidade. Portanto, é fundamental o reconhecimento precoce desses riscos para otimizar estratégias de prevenção e desfecho clínico satisfatório. Objetivo Analisar o desempenho de índices de gravidade na predição de complicações em pacientes no PO de CRM durante a permanência na UTI. Métodos Estudo transversal, com análise retrospectiva de prontuários eletrônicos de pacientes com idade ≥ 18 anos submetidos à CRM isolada e admitidos na UTI de um hospital cardiológico, em São Paulo, Brasil. As áreas sob as curvas receiver operating characteristic (AUC) com intervalo de confiança de 95% foram analisadas para verificar a acurácia dos índices European System for Cardiac Operative Risk Evaluation (EuroScore), Acute Physiology and Chronic Health Evaluation (APACHE II), Simplified Acute Physiology Score (SAPS II) e Sequential Organ Failure Assessment (SOFA) na predição de complicações. Resultados A casuística foi composta por 366 pacientes (64,58±9,42 anos; 75,96% sexo masculino). As complicações identificadas foram respiratórias (24,32%), cardiológicas (19,95%), neurológicas (10,38%), hematológicas (10,38%), infecciosas (6,56%) e renais (3,55%). O APACHE II apresentou satisfatório desempenho para a predição de complicações neurológicas (AUC 0,72) e renais (AUC 0,78). Conclusão O APACHE II se destacou na previsão das complicações neurológicas e renais. Nenhum dos índices teve bom desempenho na predição das outras complicações analisadas. Portanto, os índices de gravidade não devem ser utilizados indiscriminadamente com o objetivo de predizer todas as complicações frequentemente apresentadas por pacientes após CRM. (Arq Bras Cardiol. 2020; 115(3):452-459)
Abstract Background Patients in the postoperative period of myocardial revascularization (Coronary Artery Bypass Grafting - CABG) surgery admitted to the intensive care unit (ICU) are at risk of complications which increase the length of stay and morbidity and mortality. Therefore, early recognition of these risks is essential to optimize prevention strategies and a satisfactory clinical outcome. Objective To analyze the performance of severity indices in predicting complications in patients in the postoperative of CABG during the ICU stay. Methods A cross-sectional study with retrospective analysis of electronic medical records of patients aged ≥ 18 years who underwent isolated CABG and were admitted to the ICU of a cardiology hospital in São Paulo, Brazil. The areas under the receiver operating characteristic curves (AUC) with a 95% confidence interval were analyzed to verify the accuracy of the European System for Cardiac Operative Risk Evaluation (EuroScore), Acute Physiology and Chronic Health Evaluation (APACHE II), Simplified Acute Physiology Score (SAPS II) and Sequential Organ Failure Assessment (SOFA) indices in predicting complications. Results The sample consisted of 366 patients (64.58 ± 9.42 years; 75.96% male). The complications identified were: respiratory (24.32%), cardiovascular (19.95%), neurological (10.38%), hematological (10.38%), infectious (6.56%) and renal (3.55%). APACHE II showed satisfactory performance for predicting neurological (AUC 0.72) and renal (AUC 0.78) complications. Conclusion APACHE II excelled in predicting neurological and renal complications. None of the indices performed well in predicting the other analyzed complications. Therefore, severity indices should not be used indiscriminately in order to predict all complications frequently presented by patients after CABG. (Arq Bras Cardiol. 2020; 115(3):452-459)
Subject(s)
Humans , Male , Female , Postoperative Complications/diagnosis , Postoperative Complications/etiology , Intensive Care Units , Brazil , Cross-Sectional Studies , Retrospective Studies , ROC Curve , Hospital Mortality , Myocardial RevascularizationABSTRACT
RESUMEN Introducción: El sistema de salud experimenta un creciente interés en cruzar el abismo de calidad. La cirugía de cardiopatías congénitas ha mejorado en resultados y calidad de vida; no obstante tiene riesgo de mortalidad e infección que requieren cuantificación. El objetivo de este trabajo fue cuantificar sus resultados a través del Programa Colaborativo Internacional para Mejoría de Calidad en cirugía de cardiopatías congénitas para mejorar. Material y métodos: Estudio prospectivo intervencionista, en Hospital Público Terciario de Niños, Córdoba, Argentina. Se incluyeron pacientes con cirugía de cardiopatías congénitas desde el 1 de enero de 2012 al 31 de diciembre de 2015; se cuan-tificó sexo, edad y peso en cirugía de cardiopatías congénitas, riesgo ajustado a complejidad, porcentaje no ajustado e índices estándar de mortalidad intrahospitalaria e infección estándar (índice observado/índice esperado) con intervalos de confianza del 95% y se comparó con el estándar del Programa Colaborativo para Mejoría de Calidad (1,0 = estándar, < 1= mejoría). Como intervención se introdujeron las guías conductoras: prácticas perioperatorias seguras, control de infección y trabajo en equipo. Resultados: Se efectuaron 373 cirugías de cardiopatías congénitas en 203 varones, 170 mujeres con porcentaje con porcentaje de distribución RACHS-1 : I:28,4%, II:44%, III:24,4% y IV-VI 3,2%. El porcentaje semestral de mortalidad no ajustado fue del 6%, 3%, 8%, 9%, 11%, 0%, 0% y 5%, respectivamente (estándar 4-6%). El índice estándar de mortalidad intrahospitalaria y el intervalo de confianza fueron 0,85 (0,23-2,18), 1,82 (0,79-3,59), 1,07 (0,39-2,34), 0,36 (0,04-1,29), respectivamente. El porcentaje semestral de infección no ajustado fue 24%, 23%, 25%, 14%, 13%, 6%, 9% y 16%, respectivamente (estándar 5-7%). El índice de infección estándar y el intervalo de confianza fueron 1,89 (1,12-2,99), 1,87 (1,17-2,83), 2,0 (1,20-3,12), 1,22 (0,61-2,18). Conclusiones: La implementación del Programa Colaborativo para Mejoría de Calidad en cirugía de cardiopatías congénitas del Hospital Público Terciario de Niños, Córdoba, Argentina contribuyó a cuantificar resultados e introducir la implementación de guías conductoras para mejorarlos. Se logró la reducción en mortalidad, en tanto la infección continúa por mejorar.
ABSTRACT Background: The health care system is undergoing an increasing interest in crossing the quality chasm. Surgery for congenital heart defects has improved in terms of outcomes and quality of life; however, the risk of mortality and infection requires to be quantified. The goal of this study was to quantify the outcomes of surgery for congenital heart diseases following the International Quality Improvement Collaborative (IQIC) for Congenital Heart Disease program. Methods: This observational and interventional study was conducted at a tertiary children's hospital in Cordoba, Argentina. Patients undergoing surgery for congenital heart defects between January 1, 2012, and December 31, 2015, were included. The following variables were quantified: sex, age, weight, risk-adjusted congenital heart surgery score, non-adjusted risk, standardized in-hospital mortality ratios and standardized infection ratio (observed rate/expected rate) with their correspond-ing 95% confidence intervals. The results were compared with the IQIC for Congenital Heart Disease program standards (1.0=standardized rates, <1=improvement). The IQIC guidelines based on key drivers -safe perioperative practice, reduction of infections and team-based practice- were implemented as intervention for improvement. Results: A total of 373 surgical procedures for congenital heart defects were performed on 203 male patients and 170 female patients assigned to the following RACHS-1 categories: I: 28.4%, II: 44%, III: 24.4% and IV-VI 3.2%. Non-adjusted mortality rate at 6 months was of 6%, 3%, 8%, 9%, 11%, 0%, 0% and 5%, respectively (standardized rates 4-6%). Standardized in-hospital mortality ratios and their corresponding confidence intervals were 0.85 (0.23-2.18), 1.82 (0.79-3.59), 1.07 (0.39-2.34), and 0.36 (0.04-1.29), respectively. Non-adjusted infection rate at 6 months was of 4%, 23%, 25%, 14%, 13%, 6%, 9% and 16%, respectively (standardized rates 5-7%). Conclusion: The implementation of the International Quality Improvement Collaborative for Congenital Heart Disease program with the use of guidelines based on key drivers in a public tertiary hospital in Cordoba, Argentina, contributed to quantifying and improving the outcomes. While mortality decreased, the rate of infections is still to be improved.