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Related Concept Videos

Pneumonia I: Introduction01:30

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Experimental Human Pneumococcal Carriage
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Polymicrobial pneumococcal bacteraemia: a case-control study.

I Grau1, C Ardanuy2, M H Schulze3

  • 1Infectious Diseases, Hospital Bellvitge, Ciberes, Idibell, University of Barcelona, L'Hospitalet, 08907, Barcelona, Spain. igrau@ub.edu.

European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology
|January 6, 2017
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Summary
This summary is machine-generated.

Polymicrobial bloodstream infections, involving Streptococcus pneumoniae and other bacteria, are linked to worse outcomes. Early detection and appropriate antibiotic therapy are crucial for improving patient survival rates.

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Area of Science:

  • Infectious Diseases
  • Microbiology
  • Clinical Medicine

Background:

  • Streptococcus pneumoniae is a common cause of bacteraemia.
  • Coinfections with other bacteria can complicate pneumococcal bacteraemia.
  • Understanding the characteristics and outcomes of polymicrobial bacteraemia is essential for clinical management.

Purpose of the Study:

  • To investigate the incidence and clinical features of polymicrobial bacteraemia in patients with Streptococcus pneumoniae bacteraemia.
  • To compare outcomes between patients with monomicrobial and polymicrobial bacteraemia.
  • To highlight the implications for antibiotic therapy and patient prognosis.

Main Methods:

  • Retrospective analysis of pneumococcal bacteraemia cases.
  • Comparison of clinical characteristics and outcomes between polymicrobial (n=77) and monomicrobial (n=308) bacteraemia groups.
  • Statistical analysis to determine significant differences between groups.

Main Results:

  • Polymicrobial bacteraemia occurred in 3.4% of pneumococcal bacteraemia cases.
  • Polymicrobial cases had a higher proportion of males, serious underlying diseases, abdominal and nosocomial infections, and shock.
  • Mortality was significantly higher in the polymicrobial group (52% vs 18%).

Conclusions:

  • Polymicrobial bacteraemia in the context of pneumococcal infection is associated with increased severity and mortality.
  • Clinicians should consider the possibility of coinfections in pneumococcal bacteraemia.
  • Incomplete or inappropriate antibiotic therapy may result from overlooking polymicrobial infections.