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Community adquired legionella pneumophila pneumonia in elderly patients

Luis Alberto Ruiz, Sonia Castro, Ainhoa Gómez, Amaia Sagarna, Estibaliz Pérez, Elena Urra, Amaia Urrutia, Ruth Diez, Rafael Zalacain
European Respiratory Journal 2014 44: P2474; DOI:
Luis Alberto Ruiz
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Sonia Castro
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Ainhoa Gómez
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Amaia Sagarna
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Estibaliz Pérez
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Elena Urra
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Amaia Urrutia
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Ruth Diez
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Rafael Zalacain
1Pneumology Service, Cruces Hospital, Barakaldo, Bizkaia, Spain
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Abstract

AIM: To evaluate differences in clinical presentation and outcome in elderly patients admitted to our hospital with CAP due to Legionella pneumophila.

METHODS: We have included patients with CAP due to L. pneumophila admitted to our hospital between 01-01-2002 and 31-12-2013. Patients were divided in two groups: 1- Age<65 years. 2- Age≥ 65 years (elderly patients). The following data were collected: epidemiological and comorbid conditions, clinical and examination findings, blood tests and chest radiological, and outcome. Microbiological diagnoses were made according to a positive test results for the L. pneumophila urinary antigen.

RESULTS: We evaluated 208 patients (60 elderly). Compared to younger, elderly patients were more likely to be female (p=0,048), current smokers (p=0,0001) and heavy drinkers (p=0,0001). Comorbid conditions diabetes mellitus (p=0,025), congestive heart disease (p=0,002), COPD (p=0,028) and clinical symptoms like altered mental status (p=0,001) were more common in elderly. Laboratory abnormalities such as hyponatremia (p=0,0001) were more frequent in younger but leukocytes(p=0,015) and BUN levels (p=0,0001) were higher in elderly, who also had higher PSI (p=0,0001), CURB65 (p=0,0001) but no differences in ICU admission and mechanical ventilation. There were no differences in hospital stay (9,8 vs 10,6 days) and mortality rates (11,6% vs 5,4%, p= 0,08) between elderly and young.

CONCLUSIONS: 1- Comorbidities and altered mental status were more common in elderly patients. 2-There were no differences in ICU admissions rate although elderly patients were in more severe clinical condition according to PSI and CURB. 3- Higher mortality in elderly patients but no significant differences.

  • Pneumonia
  • Bacteria
  • Elderly
  • © 2014 ERS
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Community adquired legionella pneumophila pneumonia in elderly patients
Luis Alberto Ruiz, Sonia Castro, Ainhoa Gómez, Amaia Sagarna, Estibaliz Pérez, Elena Urra, Amaia Urrutia, Ruth Diez, Rafael Zalacain
European Respiratory Journal Sep 2014, 44 (Suppl 58) P2474;

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Community adquired legionella pneumophila pneumonia in elderly patients
Luis Alberto Ruiz, Sonia Castro, Ainhoa Gómez, Amaia Sagarna, Estibaliz Pérez, Elena Urra, Amaia Urrutia, Ruth Diez, Rafael Zalacain
European Respiratory Journal Sep 2014, 44 (Suppl 58) P2474;
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