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Etiology of pleural effusions: analysis of more than 3,000 consecutive thoracenteses

Porcel, José M ; Esquerda, Aureli ; Vives, Manuel ; Bielsa, Silvia

Archivos de bronconeumología (English ed.), 2014-05, Vol.50 (5), p.161-165 [Periódico revisado por pares]

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  • Título:
    Etiology of pleural effusions: analysis of more than 3,000 consecutive thoracenteses
  • Autor: Porcel, José M ; Esquerda, Aureli ; Vives, Manuel ; Bielsa, Silvia
  • É parte de: Archivos de bronconeumología (English ed.), 2014-05, Vol.50 (5), p.161-165
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: OBJECTIVETo investigate the etiology of pleural effusions (PE) in adults and the accuracy of pleural fluid (PF) cytology and cultures in malignant and infectious PE, respectively.PATIENTS AND METHODSRetrospective analysis of all consecutive patients with PE undergoing diagnostic thoracentesis during the last 19 years in a university hospital.RESULTSThe leading causes of PE among the 3,077 patients were: cancer (27%), heart failure (21%), pneumonia (19%), tuberculosis (9%), abdominal surgery (4%), pericardial diseases (4%) and cirrhosis (3%). Tuberculosis was the most common etiology in patients <34 years of age (52%), whereas heart failure predominated in octogenarians (45%). The most common primary tumors in malignant PE were lung (37%) and breast (16%). The overall accuracy of PF cytology was 59%, although it was significantly lower in mesotheliomas (27%) and squamous cell lung cancer (25%). In infectious PE, only 30% of cultures yielded positive results, a percentage which increased two-fold (66%) in purulent fluids (empyemas). Viridans streptococci were the most commonly isolated pathogens (25.5%). The sensitivity of solid media cultures of PF for Mycobacterium tuberculosis was low (18.5%).CONCLUSIONSThree-quarters of patients with PE in whom a diagnostic thoracentesis was indicated had cancer, heart failure, pneumonia or tuberculosis. PF cytology and cultures give false negative results in a significant number of cases.
  • Idioma: Inglês;Espanhol
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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