Early predictors of mortality in pneumococcal bacteraemia

Area of Science:

• Infectious Diseases
• Critical Care Medicine
• Clinical Epidemiology

Background:

• Streptococcus pneumoniae bacteraemia poses a significant global mortality risk.
• Early identification of mortality predictors is essential for patient management.

Purpose of the Study:

• To identify risk factors predicting mortality in patients with Streptococcus pneumoniae bacteraemia.
• To inform clinical decision-making and improve outcomes for S. pneumoniae infections.

Main Methods:

• Retrospective cohort study conducted at a tertiary care hospital in Singapore.
• Analysis of 38 patients with S. pneumoniae bacteraemia between January 2000 and December 2001.
• Review of patient records to identify demographic, clinical, and laboratory factors associated with mortality.

Main Results:

• Mortality predictors included septic shock (P <0.005), leukopenia/leukocytosis (P <0.005), and underlying malignancy (P = 0.008).
• Anemia (P = 0.025) and high anion gap (P = 0.047) on admission also predicted mortality.
• Of the 38 patients, 18.4% required intensive care unit admission, with 5 needing mechanical ventilation.

Conclusions:

• Septic shock, leukopenia/leukocytosis, anemia, high anion gap, and malignancy are key predictors of mortality in S. pneumoniae bacteraemia.
• These factors, assessed on initial presentation, can guide risk stratification and treatment intensity.
• The findings underscore the importance of comprehensive assessment in managing S. pneumoniae infections.