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      Precisão do diagnóstico clínico da síndrome do desconforto respiratório agudo quando comparado a achados de necropsia Translated title: Accuracy of clinical diagnosis of acute respiratory distress syndrome in comparison with autopsy findings

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          Abstract

          OBJETIVO: Comparar a definição de síndrome do desconforto respiratório agudo (SDRA) estabelecida pela American-European Consensus Conference (AECC, Conferência Americano-Européia) com achados de necropsia. MÉTODOS: Avaliaram-se todos os pacientes que morreram na unidade de terapia intensiva do Hospital Universitário da Universidade Federal de Juiz de Fora entre 1995 e 2003 e que foram submetidos à necropsia. Seus prontuários foram revisados para estabelecer a presença ou não dos critérios clínicos de SDRA, cujo diagnóstico histológico foi definido pela presença de dano alveolar difuso (DAD). RESULTADOS: No período, 592 pacientes faleceram e 22 foram submetidos à necropsia. Destes, 10 pacientes (45%) preencheram os critérios de SDRA pela AECC e sete (32%) preencheram os critérios histopatológicos de DAD. A sensibilidade da definição clínica foi de 71% (IC95%: 36-92%) e a especificidade foi de 67% (IC95%: 42-85%). Os valores preditivos positivo e negativo foram, respectivamente, 50 e 83%; e as razões de verossimilhança positiva e negativa foram, respectivamente, 2,33 e 0,47. Os achados histopatológicos nos cinco pacientes que preencheram os critérios clínicos de SDRA, mas não apresentavam DAD, foram pneumonia (n = 2), embolia pulmonar (n = 1), tuberculose (n = 1) e criptococose (n = 1). CONCLUSÃO: A precisão dos critérios da AECC para diagnóstico de SDRA não é tão boa. Em função do baixo valor preditivo positivo e da baixa razão de verossimilhança positiva do diagnóstico clínico, outras hipóteses devem ser consideradas quando há suspeita de SDRA.

          Translated abstract

          OBJECTIVE: To compare the American-European Consensus Conference (AECC) definition of acute respiratory distress syndrome (ARDS) to autopsy findings. METHODS: All patients who died in the intensive care unit of the Federal University of Juiz de Fora University Hospital between 1995 and 2003 and were submitted to autopsy were included in the study. Patient clinical charts were reviewed to establish whether cases met the AECC criteria for a diagnosis of ARDS, histologically defined as the presence of diffuse alveolar damage (DAD). RESULTS: During the study period, 592 patients died, and 22 were submitted to autopsy. Of those 22 patients, 10 (45%) met the AECC criteria, and 7 (32%) met the histopathological criteria for DAD. The AECC clinical criteria presented a sensitivity of 71% (95%CI: 36-92%) and a specificity of 67% (95%CI: 42-85%). The positive and negative predictive values were, respectively, 50 and 83%, whereas the positive and negative likelihood ratios were, respectively, 2.33 and 0.47. The histopathological findings in the 5 patients who met AECC criteria but did not present DAD were pneumonia (n = 2), pulmonary embolism (n = 1), tuberculosis (n = 1), and cryptococcosis (n = 1). CONCLUSION: The accuracy of the AECC definition of ARDS was godless than satisfactory. Due to the low positive predictive value and the low positive likelihood ratio, other hypotheses must be considered when ARDS is suspected.

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          Incidence and outcomes of acute lung injury.

          Acute lung injury is a critical illness syndrome consisting of acute hypoxemic respiratory failure with bilateral pulmonary infiltrates that are not attributed to left atrial hypertension. Despite recent advances in our understanding of the mechanism and treatment of acute lung injury, its incidence and outcomes in the United States have been unclear. We conducted a prospective, population-based, cohort study in 21 hospitals in and around King County, Washington, from April 1999 through July 2000, using a validated screening protocol to identify patients who met the consensus criteria for acute lung injury. A total of 1113 King County residents undergoing mechanical ventilation met the criteria for acute lung injury and were 15 years of age or older. On the basis of this figure, the crude incidence of acute lung injury was 78.9 per 100,000 person-years and the age-adjusted incidence was 86.2 per 100,000 person-years. The in-hospital mortality rate was 38.5 percent. The incidence of acute lung injury increased with age from 16 per 100,000 person-years for those 15 through 19 years of age to 306 per 100,000 person-years for those 75 through 84 years of age. Mortality increased with age from 24 percent for patients 15 through 19 years of age to 60 percent for patients 85 years of age or older (P<0.001). We estimate that each year in the United States there are 190,600 cases of acute lung injury, which are associated with 74,500 deaths and 3.6 million hospital days. Acute lung injury has a substantial impact on public health, with an incidence in the United States that is considerably higher than previous reports have suggested. Copyright 2005 Massachusetts Medical Society.
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            The acute respiratory distress syndrome.

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              ACUTE RESPIRATORY DISTRESS IN ADULTS

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                Author and article information

                Journal
                jbpneu
                Jornal Brasileiro de Pneumologia
                J. bras. pneumol.
                Sociedade Brasileira de Pneumologia e Tisiologia (São Paulo, SP, Brazil )
                1806-3756
                August 2007
                : 33
                : 4
                : 423-428
                Affiliations
                [01] Juiz de Fora MG orgnameUniversidade Federal de Juiz de Fora Brasil
                [02] Juiz de Fora MG orgnameUniversidade Federal de Juiz de Fora orgdiv1Patologia Brasil
                [03] Juiz de Fora MG orgnameUniversidade Federal de Juiz de Fora orgdiv1Hospital Universitário Brasil
                [04] Curitiba PR orgnameUniversidade Federal de Juiz de Fora orgdiv1Estatística Brasil
                Article
                S1806-37132007000400011 S1806-3713(07)03300411
                11a381b7-4e7d-41ef-aa89-092dbf18a84d

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 03 September 2006
                : 06 November 2006
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 14, Pages: 6
                Product

                SciELO Brazil

                Categories
                Artigos Originais

                Diagnóstico,Síndrome do desconforto respiratório do adulto,Autopsia,Autopsy,Diagnostic Techniques and Procedures,Respiratory distress syndrome

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