ArticleBMC pulmonary medicine2017
Legionella pneumonia due to non-Legionella pneumophila serogroup 1: usefulness of the six-point scoring system.
Article in BMC pulmonary medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 23 citations in OpenAlex.
- A decision tree for predicting the causative pathogens of community-acquired pneumonia from thin-section computed tomography.Japanese journal of radiology · 2025Article
- Severe Bacterial Pneumonia Due to Legionella longbeachae Transmitted from Potting Soil in Japan.Internal medicine (Tokyo, Japan) · 2024Article
- Environmental Monitoring ofInternational journal of environmental research and public health · 2023Article
- Clinical and Laboratory Diagnosis of Legionella Pneumonia.Diagnostics (Basel, Switzerland) · 2023Review
- Validating a clinical prediction score for Legionella-related community acquired pneumonia.BMC infectious diseases · 2022Article
- Urinary Antigen Testing for Respiratory Infections: Current Perspectives on Utility and Limitations.Infection and drug resistance · 2022Review
- Non-IDCases · 2022Article
- Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2021Article
- Legionellosis Caused by Non-Microorganisms · 2021Review
- Article
- Hyponatremia in Infectious Diseases-A Literature Review.International journal of environmental research and public health · 2020Review
- Clinical Presentation of Community-Acquired Legionella Pneumonia Identified by Universal Testing in an Endemic Area.International journal of environmental research and public health · 2020Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBecause of a limited number of reports, we aimed to investigate the clinical characteristics of patients with Legionella pneumonia due to non-Legionella pneumophila serogroup 1 and the diagnostic usefulness of the six-point scoring system for such patients compared with patients with pneumonia caused by L. pneumophila serogroup 1.
methodsWe retrospectively analysed patients diagnosed with Legionella pneumonia due to non-L. pneumophila serogroup 1 between March 2001 and June 2016. We examined the clinical characteristics, including symptoms, laboratory findings, radiologic findings, pneumonia severity, initial treatment and prognosis. We also calculated scores using the six-point scoring system in these patients. Furthermore, we compared the clinical characteristics and six-point scores between non-L. pneumophila serogroup 1 patients and L. pneumophila serogroup 1 patients among hospitalized community-acquired pneumonia patients enrolled prospectively between October 2010 and July 2016.
resultsEleven patients had pneumonia due to non-L. pneumophila serogroup 1; their median age was 66 years and 8 patients (72.7%) were male. The most common pathogen was L. pneumophila serogroup 3 (6/11), followed by L. pneumophila serogroup 9 (3/11), L. pneumophila serogroup 6 (1/11) and L. longbeachae (1/11). Non-specific symptoms, such as fever and cough, were common. Six patients (54.5%) had liver enzyme elevation, but no patient developed hyponatraemia at <130 mEq/L. Nine patients (81.8%) showed lobar pneumonia and 7 patients (63.6%) manifested with consolidation and ground-glass opacity. Patients with mild to moderate severity comprised 10 (90.9%) by CURB-65 and 5 (45.5%) by the Pneumonia Severity Index. Of all patients, 4 were admitted to the intensive care unit and 3 died despite appropriate empiric therapy. The clinical characteristics were not significantly different between non-L. pneumophila serogroup 1 patients and L. pneumophila serogroup 1 patients (n = 23). At a cut-off value of ≥ 2 points, the sensitivity of the six-point scoring system was 54.5% (6/11) for non-L. pneumophila serogroup 1 patients and 95.7% (22/23) for L. pneumophila serogroup 1 patients.
conclusionsCases of non-L. pneumophila serogroup 1 pneumonia varied in severity from mild to severe and the clinical characteristics were often non-specific. The six-point scoring system was not useful in predicting such Legionella pneumonia cases.
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