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Title: Characteristics of ascitic fluid from patients with suspected spontaneous bacterial peritonitis in emergency units at a tertiary hospital
Authors: REGINATO, Thiago Jose BuerOLIVEIRA, Marcelo Jose AndradeMOREIRA, Luiz CesarLAMANNA, AntonietaACENCIO, Milena Marques PagliarelliANTONANGELO, Leila
Citation: SAO PAULO MEDICAL JOURNAL, v.129, n.5, p.315-319, 2011
Abstract: CONTEXT AND OBJECTIVE: Spontaneous bacterial peritonitis (SBP) is a complication of ascites, especially in cirrhosis. Ascitic fluid with 250 or more neutrophils/mm(3) is an acceptable criterion for diagnosis, even when bacterial fluid cultures are negative. The aims here were to estimate SBP frequency among emergency room patients based on cellular criteria and evaluate the biochemical profile of these fluids. DESIGN AND SETTING: Retrospective study at a public tertiary hospital. METHODS: Laboratory records of patients with ascites attended in emergency rooms between November 2001 and November 2006, from whom ascitic fluid samples were sent to the laboratory due to suspected SBP, were evaluated. The 691 samples included were divided into group A (presumed SBP: >= 250 neutrophils/mm(3); n = 219; 31.7%) and group B (no presumed SBP: <250 neutrophils/mm(3); n = 472; 68.3%). Patients' sex and age; ascitic fluid characteristics (numbers of neutrophils, leukocytes and nucleated cells); bacteriological characteristics; and protein, lactate dehydrogenase, adenosine deaminase and glucose concentrations were evaluated. RESULTS: Among group A cultured samples, 63 (33.8%) had positive bacterial cultures with growth of pathogens commonly associated with SBP. In total, the group A samples showed higher lactate dehydrogenase levels than seen in the group B samples. The latter presented predominance of lymphocytes and macrophages. CONCLUSION: Among the ascitic fluid samples with clinically suspected SBP, 31.7% fulfilled the cellular diagnostic criteria. Positive bacterial isolation was found in 33.8% of the cultured samples from the presumed SBP group.
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Artigos e Materiais de Revistas Científicas - HC/ICHC
Instituto Central - HC/ICHC

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Instituto do Coração - HC/InCor

Artigos e Materiais de Revistas Científicas - LIM/03
LIM/03 - Laboratório de Medicina Laboratorial

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