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Primary liver abscess due to Klebsiella pneumoniae in Taiwan

J H Wang1, Y C Liu, S S Lee

  • 1Department of Internal Medicine, Veterans General Hospital-Kaohsiung, Taiwan, Republic of China.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|June 24, 1998
PubMed

Insights

A new liver abscess syndrome caused by Klebsiella pneumoniae is emerging in Taiwan, particularly affecting diabetic patients. This Klebsiella pneumoniae liver abscess presents differently from typical infections, with lower mortality and relapse rates.

Area of Science:

  • Infectious Diseases
  • Hepatology
  • Microbiology

Background:

  • Pyogenic liver abscess (PLA) is typically a polymicrobial infection with high mortality and relapse rates.
  • Traditionally associated with intra-abdominal or biliary tract infections.
  • An emerging clinical syndrome of single-organism PLA has been observed.

Purpose of the Study:

  • To characterize a novel clinical syndrome of liver abscess caused by Klebsiella pneumoniae in Taiwan.
  • To compare the clinical features, outcomes, and associated conditions of K. pneumoniae liver abscess with polymicrobial PLA.

Main Methods:

  • Retrospective review of 182 pyogenic liver abscess cases from September 1990 to June 1996.
  • Categorization into K. pneumoniae monomicrobial (160 cases) and polymicrobial (22 cases) abscesses.
  • Comparative analysis of patient demographics, clinical presentation, comorbidities, and treatment outcomes.

Main Results:

  • K. pneumoniae monomicrobial liver abscesses were strongly associated with diabetes or glucose intolerance (75% vs. 4.5%).
  • Higher incidence of metastatic infections (11.9% vs. 0%) and lower rates of intra-abdominal abnormalities (0.6% vs. 95.5%) in K. pneumoniae cases.
  • Significantly lower mortality (11.3% vs. 41%) and relapse rates (4.4% vs. 41%) for K. pneumoniae liver abscesses compared to polymicrobial PLA.

Conclusions:

  • K. pneumoniae liver abscess represents a distinct clinical entity in Taiwan.
  • This syndrome is a significant infectious complication particularly prevalent in diabetic patients.
  • K. pneumoniae liver abscesses exhibit a more favorable prognosis than traditional polymicrobial PLA.

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