Pseudomonas aeruginosa infections: factors relating to mortality with emphasis on resistance pattern and antimicrobial treatment

A retrospective case-control study was conducted to investigate the risk factors for death among intensive care unit patients with Pseudomonas aeruginosa infection. Out of 131 patients investigated, 67 (51.1%) died within 30 days of being diagnosed with this infection. The mean duration of hospital...

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Main Authors: Millena R.S. Pinheiro, Heloisa R. Lacerda, Renata G.L. Melo, Mª Amélia Maciel
Format: Article
Language:English
Published: Elsevier
Series:Brazilian Journal of Infectious Diseases
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000600013&lng=en&tlng=en
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author Millena R.S. Pinheiro
Heloisa R. Lacerda
Renata G.L. Melo
Mª Amélia Maciel
author_facet Millena R.S. Pinheiro
Heloisa R. Lacerda
Renata G.L. Melo
Mª Amélia Maciel
author_sort Millena R.S. Pinheiro
collection DOAJ
description A retrospective case-control study was conducted to investigate the risk factors for death among intensive care unit patients with Pseudomonas aeruginosa infection. Out of 131 patients investigated, 67 (51.1%) died within 30 days of being diagnosed with this infection. The mean duration of hospital stay before this diagnosis was 28.5 ± 26.5 days. No association was found between bacterial resistance and death in this study (multiresistant p= 0.26; panresistant p= 0.42), but the adequacy of the initial treatment was inversely proportional to the degree of resistance. There was a tendency towards greater mortality among patients who received combination therapy (empirical p= 0.09; definitive p= 0.08), despite the greater frequency of appropriate treatment in these patients and the similar degree of severity in the two groups. This finding may be explained by pharmacodynamic parameters that were not studied or by the extensive use of aminoglycosides in the combination therapy, which play a controversial role in combination therapy due to their potential for renal toxicity. The multivariate analysis in our study demonstrated that age [odds ratio (OR) 1.04], septic shock (OR 15.4) and hypoalbuminemia (OR 0.32) were independent risk factors for death.
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spelling doaj.art-0fd93ca7add549b3bf6e03d8b5d12f572022-12-22T00:10:58ZengElsevierBrazilian Journal of Infectious Diseases1678-439112650951510.1590/S1413-86702008000600013S1413-86702008000600013Pseudomonas aeruginosa infections: factors relating to mortality with emphasis on resistance pattern and antimicrobial treatmentMillena R.S. Pinheiro0Heloisa R. Lacerda1Renata G.L. Melo2Mª Amélia Maciel3Universidade Federal de PernambucoUniversidade Federal de PernambucoHospital ProntolindaUniversidade Federal de PernambucoA retrospective case-control study was conducted to investigate the risk factors for death among intensive care unit patients with Pseudomonas aeruginosa infection. Out of 131 patients investigated, 67 (51.1%) died within 30 days of being diagnosed with this infection. The mean duration of hospital stay before this diagnosis was 28.5 ± 26.5 days. No association was found between bacterial resistance and death in this study (multiresistant p= 0.26; panresistant p= 0.42), but the adequacy of the initial treatment was inversely proportional to the degree of resistance. There was a tendency towards greater mortality among patients who received combination therapy (empirical p= 0.09; definitive p= 0.08), despite the greater frequency of appropriate treatment in these patients and the similar degree of severity in the two groups. This finding may be explained by pharmacodynamic parameters that were not studied or by the extensive use of aminoglycosides in the combination therapy, which play a controversial role in combination therapy due to their potential for renal toxicity. The multivariate analysis in our study demonstrated that age [odds ratio (OR) 1.04], septic shock (OR 15.4) and hypoalbuminemia (OR 0.32) were independent risk factors for death.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000600013&lng=en&tlng=enRisk factorsCase-control studyPseudomonas aeruginosaDeath
spellingShingle Millena R.S. Pinheiro
Heloisa R. Lacerda
Renata G.L. Melo
Mª Amélia Maciel
Pseudomonas aeruginosa infections: factors relating to mortality with emphasis on resistance pattern and antimicrobial treatment
Brazilian Journal of Infectious Diseases
Risk factors
Case-control study
Pseudomonas aeruginosa
Death
title Pseudomonas aeruginosa infections: factors relating to mortality with emphasis on resistance pattern and antimicrobial treatment
title_full Pseudomonas aeruginosa infections: factors relating to mortality with emphasis on resistance pattern and antimicrobial treatment
title_fullStr Pseudomonas aeruginosa infections: factors relating to mortality with emphasis on resistance pattern and antimicrobial treatment
title_full_unstemmed Pseudomonas aeruginosa infections: factors relating to mortality with emphasis on resistance pattern and antimicrobial treatment
title_short Pseudomonas aeruginosa infections: factors relating to mortality with emphasis on resistance pattern and antimicrobial treatment
title_sort pseudomonas aeruginosa infections factors relating to mortality with emphasis on resistance pattern and antimicrobial treatment
topic Risk factors
Case-control study
Pseudomonas aeruginosa
Death
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000600013&lng=en&tlng=en
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AT renataglmelo pseudomonasaeruginosainfectionsfactorsrelatingtomortalitywithemphasisonresistancepatternandantimicrobialtreatment
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