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      Determinantes morfológicos de prognóstico em pneumonia nosocomial: um estudo em autópsias Translated title: Morphological prognostic factors in nosocomial pneumonia: an autopsy study

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          Abstract

          OBJETIVO: Determinar a prevalência de pneumonia nosocomial nas autópsias em um hospital público universitário; identificar os fatores de risco relacionados à pneumonia nosocomial e os potenciais fatores prognósticos relacionados à ocorrência de pneumonia nosocomial fatal; e correlacionar os achados anatomopatológicos com a ocorrência de pneumonia nosocomial e/ou pneumonia aspirativa. MÉTODOS: Estudo retrospectivo de 199 pacientes autopsiados, maiores de 1 ano de idade, internados no Hospital das Clínicas da Faculdade de Medicina de Botucatu da Universidade Estadual Paulista entre 1999 e 2006, cuja causa de morte (causa básica ou associada) foi pneumonia nosocomial. Testou-se a associação dos dados demográficos, clínicos e anatomopatológicos com os desfechos pneumonia nosocomial fatal e pneumonia aspirativa fatal. As variáveis significativas entraram na análise multivariada. RESULTADOS: A idade média foi de 59 ± 19 anos. A prevalência de pneumonia nosocomial em autópsias foi 29%, e essa foi a causa mortis de 22,6% dos pacientes autopsiados. A pneumonia nosocomial fatal correlacionou-se com os achados anatomopatológicos de alterações estruturais tabágicas (OR = 3,23; IC95%: 1,26-2,95; p = 0,02) e acometimento pulmonar bilateral (OR = 3,23; IC95%: 1,26-8,30; p = 0,01). Não houve associações significativas entre as variáveis e pneumonia aspirativa fatal. CONCLUSÕES: Em nossa amostra, a pneumonia nosocomial teve prevalência elevada e foi responsável por quase 25% das mortes. A mortalidade é favorecida por alterações estruturais tabágicas e pneumonia bilateral. Esses achados corroboram os resultados de diversos estudos clínicos sobre pneumonia nosocomial.

          Translated abstract

          OBJECTIVE: To determine the prevalence of nosocomial pneumonia in autopsies at a public university hospital; to identify the risk factors for nosocomial pneumonia and the potential prognostic factors associated with fatal nosocomial pneumonia and with fatal aspiration pneumonia; and to determine whether anatomopathological findings correlate with nosocomial pneumonia or aspiration pneumonia. METHODS: A retrospective study involving 199 autopsied patients, older than 1 year of age, who had been admitted to the São Paulo State University Botucatu School of Medicine Hospital das Clínicas and died of nosocomial pneumonia (underlying or contributing cause), between 1999 and 2006. Demographic, clinical and anatomopathological variables were tested regarding their association with the outcomes (fatal nosocomial pneumonia and fatal aspiration pneumonia). The significant variables were analyzed using multivariate analysis. RESULTS: The mean age was 59 ± 19 years. The prevalence of nosocomial pneumonia in autopsies was 29%, and the disease was the cause of death in 22.6% of the autopsied patients. Fatal nosocomial pneumonia correlated with the following anatomopathological findings: tobacco-associated structural lesions (OR = 3.23; 95% CI: 1.26-2.95; p = 0.02) and bilateral pneumonia (OR = 3.23; 95% CI: 1.26-8.30; p = 0.01). None of the variables were found to be significantly associated with fatal aspiration pneumonia. CONCLUSIONS: In our sample, there was a high prevalence of nosocomial pneumonia, which was responsible for almost 25% of all of the deaths. Smoking-related structural lesions and bilateral pneumonia all favored mortality. These findings corroborate the results of various clinical studies on nosocomial pneumonia.

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          Nosocomial pneumonia. A multivariate analysis of risk and prognosis.

          One hundred and twenty consecutive episodes of nosocomial pneumonia (NP) in 118 nonneutropenic adults admitted to a 1,000-bed teaching hospital were studied in order to investigate the prognosis and risk factors. The overall fatality rate was 36.6 percent. The identification of a "high-risk" microorganism (Pseudomonas aeruginosa, Enterobacteriaceae, and other Gram-negative bacilli, Streptococcus faecalis, Staphylococcus aureus, Candida sp, Aspergillus sp, and episodes of polymicrobial pneumonia), bilateral involvement on chest x-ray examination, the presence of respiratory failure, inappropriate antibiotic therapy, and age older than 60 years or an underlying condition ultimately or rapidly fatal were those factors selected by a stepforward logistic regression analysis as independently worsening the prognosis. A series of variables frequently quoted as predisposing to NP was determined to be either present or absent in the same 120 cases of NP and in an equal number of randomly selected control subjects. After adjusting for confounding, factors significantly predisposing to NP were tracheal intubation, depressed level of consciousness, underlying chronic lung disease, thoracic or upper abdominal surgery, prior episode of a large volume aspiration, and age older than 70 years. Since some of the factors influencing the risk or the prognosis of NP are amenable to medical intervention, a percentage of NP might be prevented and its prognosis can be improved.
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            Diretrizes para Cessação do Tabagismo

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              Diretrizes para cessação do tabagismo

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                jbpneu
                Jornal Brasileiro de Pneumologia
                J. bras. pneumol.
                Sociedade Brasileira de Pneumologia e Tisiologia (São Paulo )
                1806-3756
                February 2010
                : 36
                : 1
                : 51-58
                Affiliations
                [1 ] Universidade Estadual Paulista Brazil
                Article
                S1806-37132010000100010
                10.1590/S1806-37132010000100010
                ddeb724b-106d-4e35-8c3e-6d1942905235

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1806-3713&lng=en
                Categories
                RESPIRATORY SYSTEM

                Respiratory medicine
                Autopsy,Risk Factors,Prognosis,Pneumonia, aspiration,Pneumonia,Autopsia,Fatores de risco,Prognóstico,Pneumonia aspirativa

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