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Rev. chil. infectol ; 28(1): 35-39, feb. 2011. ilus
Article in Spanish | LILACS | ID: lil-583020

ABSTRACT

Las infecciones bacteriémicas son más frecuentes en el paciente cirrótico que en la población general. Se identificaron retrospectivamente 59 pacientes cirróticos con bacteriemia, hospitalizados entre los años 2005 y 2008. La bacteriemia sin foco fue la más frecuente (29 por ciento), seguida de aquellas de origen pulmonar (22 por ciento). Cincuenta y dos por ciento de los agentes aislados correspondieron a cocáceas grampositivas y 48 por ciento a bacilos gramnegativos, siendo estos últimos los agentes predominantes en las bacteriemias nosocomiales. Los principales agentes aislados fueron Staphylococcns aureus (24 por ciento) y Escherichia col i (22 por ciento). La mortalidad de los pacientes cirróticos bacteriémicos fue mayor que la del total de cirróticos hospitalizados (37 vs 9,4 por ciento; p < 0,001) y la medición del puntaje de MELD a las 72 horas se correlacionó significativamente con la mortalidad. Conclusión: La bacteriemia es una complicación grave del paciente cirrótico y el MELD podría ser útil en su categorización de riesgo.


Bacteremic infections are more frequent in patients with cirrhosis, as their immune system is compromised. Series of cirrhotic patients with bacteremia has seldom been reported in Chile. We retrospectively collected, from 2005 to 2008, 59 episodes of bacteremia in cirrhotics representing 9 percent of the overall number of bacteremic episodes seen in our center in the period. Spontaneous bacteremia accounted for 29 percent followed by those of pulmonary origin (22 percent). Grampositive cocci and gramnegative bacilli were responsible in 52 percent and 48 percent respectively, however gramnegative rods predominated in nosocomial bacteremias. Overall, the most frequent organisms were Staphylococcus aureus (24 percent) and Escherichia col i (22 percent). Mortality in bacteremic patients was significantly higher compared with all cirrhotic patients hospitalized in the period (37.0 vs 9.4 percent; p < 0.001) and MELD score was significantly correlated with mortality. Conclusion: bacteremia is a severe complication of cirrhosis and MELD score could be a useful tool to stratify risk in these patients.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Bacteremia/etiology , Liver Cirrhosis/complications , Bacteremia/mortality , Gram-Negative Bacterial Infections/etiology , Gram-Negative Bacterial Infections/mortality , Gram-Positive Bacterial Infections/etiology , Gram-Positive Bacterial Infections/mortality , Liver Cirrhosis/mortality , Retrospective Studies , Risk Factors , Severity of Illness Index
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