ABSTRACT Objective: This study aims to investigate the ability of the six-minute walk distance (6MWD) as a prognostic marker for midterm clinical outcomes three months after coronary artery bypass grafting (CABG), to identify possible predictors of fall in 6MWD in the early postoperative period, and to establish the percentage fall in early postoperative 6MWD, considering the preoperative baseline as 100%. Methods: A prospective cohort of patients undergoing elective CABG were included. The percentage fall in 6MWD was assessed by the difference between preoperative and postoperative day (POD) five. Clinical outcomes were evaluated three months after hospital discharge. Results: There was a significant decrease in 6MWD on POD5 compared with preoperative baseline values (percentage fall of 32.5±16.5%, P<0.0001). Linear regression analysis showed an independent association of the percentage fall of 6MWD with cardiopulmonary bypass (CPB) and preoperative inspiratory muscle strength. Receiver operating characteristic curve analysis revealed that the best cutoff value of percentage fall in 6MWD to predict poorer clinical outcomes at three months was 34.6% (area under the curve = 0.82, sensitivity = 78.95%, specificity = 76.19%, P=0.0001). Conclusion: This study indicates that a cutoff value of 34.6% in percentage fall of 6MWD on POD5 was able to predict poorer clinical outcomes at three months of follow-up after CABG. Use of CPB and preoperative inspiratory muscle strength were independent predictors of percentage fall of 6MWD in the postoperative period. These findings further support the clinical application of 6MWD and propose an inpatient preventive strategy to guide clinical management over time.

ABSTRACT Objective: This study aims to investigate the ability of the six-minute walk distance (6MWD) as a prognostic marker for midterm clinical outcomes three months after coronary artery bypass grafting (CABG), to identify possible predictors of fall in 6MWD in the early postoperative period, and to establish the percentage fall in early postoperative 6MWD, considering the preoperative baseline as 100%. Methods: A prospective cohort of patients undergoing elective CABG were included. The percentage fall in 6MWD was assessed by the difference between preoperative and postoperative day (POD) five. Clinical outcomes were evaluated three months after hospital discharge. Results: There was a significant decrease in 6MWD on POD5 compared with preoperative baseline values (percentage fall of 32.5±16.5%, P<0.0001). Linear regression analysis showed an independent association of the percentage fall of 6MWD with cardiopulmonary bypass (CPB) and preoperative inspiratory muscle strength. Receiver operating characteristic curve analysis revealed that the best cutoff value of percentage fall in 6MWD to predict poorer clinical outcomes at three months was 34.6% (area under the curve = 0.82, sensitivity = 78.95%, specificity = 76.19%, P=0.0001). Conclusion: This study indicates that a cutoff value of 34.6% in percentage fall of 6MWD on POD5 was able to predict poorer clinical outcomes at three months of follow-up after CABG. Use of CPB and preoperative inspiratory muscle strength were independent predictors of percentage fall of 6MWD in the postoperative period. These findings further support the clinical application of 6MWD and propose an inpatient preventive strategy to guide clinical management over time.

ABSTRACT: Objective: To assess compliance with standard precautions by health professionals in two hospitals. Method: This is a descriptive study, with a quantitative approach, conducted in two hospitals in the State of Rio de Janeiro. The sample is composed of health professionals who work in health care. Study developed in the period between February 2019 and February 2020. In order to collect data, the we used: 1- Individual and professional information form; 2- Brazilian Portuguese version of the Compliance with Standard Precautions Scale. Data were analyzed using descriptive statistics and hypothesis tests. Results: The study was attended by 366 (100.0%) health professionals. The overall score of compliance with standard precautions was 13.4 (66.8%), ranging from 4 to 20. As for the average of the scores between the institutions, the professionals from hospital 1 had an average of 12.6 and those from hospital 2 showed a compliance of 13.6. Conclusions: Compliance with standard precautions among health professionals did not happen in its entirety.

RESUMO: Objetivo: Avaliar o cumprimento às precauções-padrão por profissionais de saúde de dois hospitais. Método: Trata-se de um estudo descritivo, de abordagem quantitativa, realizado em dois hospitais do Estado do Rio de Janeiro. A amostra é composta por profissionais de saúde que atuam na assistência. Estudo desenvolvido no período entre fevereiro de 2019 até fevereiro de 2020. Para a coleta de dados foram utilizados: 1- Formulário de informações individuais e profissionais; 2- Versão para o Português do Brasil da Compliance with Standard Precautions Scale. Os dados foram analisados utilizando estatística descritiva e testes de hipótese. Resultados: Participaram do estudo 366 (100,0%) profissionais de saúde. O escore geral de cumprimento das precauções-padrão foi de 13,4 (66,8%) variando entre 4 e 20. Quanto a média dos escores entre as instituições, os profissionais do hospital 1 obtiveram uma média de 12,6 e o hospital 2 apresentou 13,6 de cumprimento. Conclusões: O cumprimento às precauções-padrão entre profissionais de saúde não aconteceu em sua totalidade.

RESUMEN: Objetivo: Evaluar el cumplimiento de las precauciones estándar por parte de los profesionales de la salud en dos hospitales. Método: Se trata de un estudio descriptivo, con abordaje cuantitativo, realizado en dos hospitales del Estado de Rio de Janeiro. La muestra está compuesta por profesionales de la salud que trabajan en la asistencia. Estudio desarrollado en el período comprendido entre febrero de 2019 y febrero de 2020. Para la recolección de datos se utilizó lo siguiente: 1- Formulario de información individual y profesional; 2- Versión en portugués brasileño de la Escala de Cumplimiento de Precauciones Estándar. Los datos se analizaron mediante estadística descriptiva y pruebas de hipótesis. Resultados: El estudio incluyó a 366 (100,0%) profesionales de la salud. La puntuación global de cumplimiento de las precauciones estándar fue de 13,4 (66,8%), con un rango de 4 a 20. En cuanto a la media de las puntuaciones entre las instituciones, los profesionales del hospital 1 tuvieron una media de 12,6 y el hospital 2 mostró un cumplimiento de 13,6. Conclusiones: El cumplimiento de las precauciones estándar entre los profesionales de la salud no se produjo en su totalidad.