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Blood urea nitrogen to serum albumin ratio independently predicts 30-day mortality and severity in patients with Escherichia coli bacteraemia
Zou, Xiao-Ling; Feng, Ding-Yun; Yang, Hai-Ling; Zhang, Tian-Tuo.
Affiliation
  • Zou, Xiao-Ling; the Third Affiliated Hospital of Sun Yat-sen University. Guangzhou. China
  • Feng, Ding-Yun; the Third Affiliated Hospital of Sun Yat-sen University. Guangzhou. China
  • Yang, Hai-Ling; the Third Affiliated Hospital of Sun Yat-sen University. Guangzhou. China
  • Zhang, Tian-Tuo; the Third Affiliated Hospital of Sun Yat-sen University. Guangzhou. China
Med. clín (Ed. impr.) ; 157(5): 219-225, septiembre 2021. tab, graf
Article in English | IBECS | ID: ibc-215465
Responsible library: ES1.1
Localization: ES15.1 - BNCS
ABSTRACT

Background:

Elevated blood urea nitrogen to serum albumin (BUN/ALB) ratio had been identified as an independent risk factor related to mortality in community-acquired and hospital-acquired pneumonia. This study aimed to investigate whether this clinical index can predict the clinical outcomes of E. coli bacteraemia.Material and methodsClinical data were collected from patients with E. coli bacteraemia attended at our hospital between January 2012 and December 2018. The endpoints were mortality within 30 days after the diagnosis of E. coli bacteraemia and intensive care (IC) requirement. Cox regression analysis was performed to evaluate the risk factors.ResultsA total of 398 patients with E. coli bacteraemia were enrolled in this study and 56 patients died within 30 days after bacteraemia onset. Multivariate Cox regression analysis showed that age greater than 65 years, lymphocyte count<.8×10e9/L, elevated BUN/ALB ratio, increased SOFA score, carbapenem resistance, central venous catheterization before onset of bacteraemia, and infection originating from abdominal cavity were independent risk factors for 30-day mortality (P<.05). The risk factors associated with IC requirement were similar to those for 30-day mortality except central venous catheterization before onset of bacteraemia. The area under the receiver-operating characteristic curve for BUN/ALB ratio predicting 30-day mortality and IC requirement was similar to that for SOFA score, but higher than that for lymphocyte count. The cut-off points of BUN/ALB ratio to predict 30-day mortality and IC requirement were both .3.ConclusionsBUN/ALB ratio is a simple but independent predictor of 30-day mortality and severity in E. coli bacteraemia. A higher BUN/ALB ratio at the onset of bacteraemia predicts a higher mortality rate and IC requirement. (AU)
RESUMEN
Antecedentes Se ha identificado la elevación de la proporción de nitrógeno ureico en sangre con respecto a albúmina sérica (NUS/ALB) como un factor de riesgo independiente asociado a la mortalidad de la neumonía adquirida en la comunidad y la neumonía intrahospitalaria. El objetivo de este estudio fue investigar si este índice clínico puede predecir los resultados clínicos de bacteremia por E. coli.Material y métodosSe recopilaron los datos clínicos de los pacientes con bacteremia por E. coli atendidos en nuestro hospital entre enero de 2012 y diciembre de 2018. Las variables de evaluación fueron la mortalidad a 30 días tras el diagnóstico de bacteremia por E. coli y la necesidad de cuidados intensivos (CI). Se realizó un análisis de regresión de Cox para evaluar los factores de riesgo.ResultadosSe incluyó en el estudio a un total de 398 pacientes con bacteremia por E. coli, falleciendo 56 pacientes en el plazo de 30 días tras el inicio de la bacteremia. El análisis de regresión de Cox multivariante reflejó que la edad superior a 65 años, el recuento linfocitario <0,8×109/l, la elevación del ratio NUS/ALB, el incremento de la puntuación SOFA, la resistencia al carbapenem, la cateterización venosa central anterior al inicio de la bacteremia y la infección originada por la cavidad abdominal eran factores de riesgo independientes de la mortalidad a 30 días (p<0,05). Los factores de riesgo asociados a la necesidad de CI fueron similares a los de la mortalidad a 30 días, exceptuando la cateterización venosa central anterior al inicio de la bacteremia. El área bajo la curva característica operador-receptor para el ratio NUS/ALB que predice la mortalidad a 30 días, y la necesidad de CI fue similar a la puntuación SOFA, aunque superior a la correspondiente al recuento linfocitario. Los puntos de corte del ratio NUS/ALB para predecir la mortalidad a 30 días y la necesidad de CI se situaron en 0,3. (AU)
Subject(s)


Full text: Available Collection: National databases / Spain Database: IBECS Main subject: Risk Factors / Bacteremia / Escherichia coli Limits: Humans Language: English Journal: Med. clín (Ed. impr.) Year: 2021 Document type: Article Institution/Affiliation country: the Third Affiliated Hospital of Sun Yat-sen University/China

Full text: Available Collection: National databases / Spain Database: IBECS Main subject: Risk Factors / Bacteremia / Escherichia coli Limits: Humans Language: English Journal: Med. clín (Ed. impr.) Year: 2021 Document type: Article Institution/Affiliation country: the Third Affiliated Hospital of Sun Yat-sen University/China
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