Klebsiella bacteremia

Area of Science:

• Infectious Diseases
• Bacteriology
• Clinical Microbiology

Background:

• Klebsiella bacteremia is a significant cause of bloodstream infections, particularly in vulnerable populations.
• Understanding the epidemiology and risk factors associated with Klebsiella bacteremia is crucial for effective patient management.
• The source of infection and patient demographics play a role in the prognosis of Klebsiella bacteremia.

Purpose of the Study:

• To investigate the epidemiological characteristics of Klebsiella bacteremia in a cohort of patients.
• To identify the primary sites of infection leading to Klebsiella bacteremia.
• To analyze factors influencing mortality and treatment outcomes in patients with Klebsiella bacteremia.

Main Methods:

• Retrospective study of 41 patients diagnosed with Klebsiella bacteremia.
• Data collection included patient demographics, initial infection site, underlying conditions, and treatment regimens.
• Analysis of incidence, distribution, and mortality rates over a 16-month period.

Main Results:

• The study included 41 patients, predominantly newborns and the elderly, with most infections being hospital-acquired.
• The most common initial sites of infection were the urinary tract (27%), gastrointestinal tract (24%), intravenous sites (20%), and pulmonary system (15%).
• Mortality was associated with patient age, underlying diseases, and infection source, with pulmonary and abdominal infections carrying higher risks.

Conclusions:

• Klebsiella bacteremia in non-newborns with non-fatal underlying conditions had lower mortality when originating from the urinary tract or intravenous sites.
• Single antibiotic therapy with aminoglycosides was effective for patients with urinary tract or intravenous site infections.
• Targeted interventions based on the source of infection and patient characteristics are essential for improving outcomes in Klebsiella bacteremia.