Brazilian Journal of Anesthesiology
https://bjan-sba.org/article/doi/10.1016/j.bjan.2012.09.002
Brazilian Journal of Anesthesiology
Scientific Article

Avaliação do delírio em pacientes pós-operatórios: validação da versão portuguesa da Nursing Delirium Screening Scale na terapia intensiva

Delirium assessment in postoperative patients: validation of the portuguese version of the Nursing Delirium Screening Scale in critical care

Fernando Abelha; Dalila Veiga; Maria Norton; Cristina Santos; Jean-David Gaudreau

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Resumo

EXPERIÊNCIA E OBJETIVOS: O objetivo desse estudo foi validar a versão portuguesa da escala Nursing Delirium Screening Scale (Nu-DESC) para uso em anbientes de terapia intensiva. MÉTODOS: Simultânea e independentemente, avaliamos para ocorrência de delírio todos os pacientes pós-operatórios internados em uma Unidade de Terapia Intensiva Cirúrgica (UTIC) ao longo de um período de um mês, utilizando as versões portuguesas de Nu-DESC e da escala Intensive Care Delirium Screening Checklist (ICDSC) dentro de 24 horas a contar da internação, tanto pelo médico da equipe de pesquisa como pelo enfermeiro diretamente encarregado do paciente. Determinamos a acurácia diagnóstica de Nu-DESC utilizando análises de sensibilidade, especificidade e da curva ROC. Avaliamos a confiabilidade entre enfermeiros/médico da equipe de pesquisa para Nu-DESC pelo coeficiente de correlação intraclasse (CCI). Avaliamos concordância e confiabilidade entre Nu-DESC e ICDSC por percentuais globais e específicos de concordância, e por estatística kappa. RESULTADOS: Com base na escala ICDSC, diagnosticamos delírio em 12 dos 78 pacientes. Para o escore Nu-DESC total, consideramos como alta a confiabilidade entre enfermeiros/médico da equipe. Quanto ao diagnóstico, consideramos perfeita a concordância entre enfermeiros e médico da equipe. O percentual de concordância global entre Nu-DESC e ICDSC para o diagnóstico de delírio foi 0,88, e kappa variou de 0,79 a 0,93. A sensibilidade da escala Nu-DESC foi 100%, e a especificidade, 86%. CONCLUSÕES: A versão portuguesa da escala Nu-DESC parece ser instrumento de avaliação e monitoramento acurado e confiável para o diagnóstico de delírio em ambientes de terapia intensiva.

Palavras-chave

Delírio, Terapia pós-operatória, Terapia intensiva

Abstract

BACKGROUND AND OBJECTIVES: The aim of this study was to validate the Portuguese version of the Nursing Delirium Screening Scale (Nu-DESC) for use in critical care settings. METHODS: We simultaneously and independently evaluated all postoperative patients admitted to a surgical Intensive Care Unit (SICU) over a 1-month period for delirium, using the Portuguese versions of both the Nu-DESC and the Intensive Care Delirium Screening Checklist (ICDSC) within 24 hours of admission by both the research staff physician and one bedside nurse. We determined the diagnostic accuracy of the Nu-DESC using sensitivity, specificity and ROC curve analyses. We assessed reliability between nurses and the research staff physician for Nu-DESC by intraclass correlation coefficient (ICC). We assessed agreement and reliability between Nu-DESC and ICDSC by overall and specific proportions of agreement and by kappa statistics. RESULTS: Based on the ICDSC, we diagnosed delirium in 12 of the 78 patients. Reliability between nurses and the staff physician for total Nu-DESC score was high. Agreement between nurses and staff physician in the delirium diagnosis was perfect. The proportion of overall agreement between Nu-DESC and ICDSC in the delirium diagnosis was 0.88 and the kappa ranged from 0.79 to 0.93. Nu-DESC Sensitivity was 100 and specificity was 86%. CONCLUSIONS: The Portuguese version of the Nu-DESC appears to be an accurate and reliable assessment and monitoring instrument for delirium in critical care settings.

Keywords

Delirium, Postoperative care, Critical care

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