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Sources and outcome for methicillin-resistant Staphylococcus aureus bacteraemia
M T Cafferkey1, R Hone, C T Keane
1Department of Clinical Microbiology, Trinity College, St. James's Hospital.
The Journal of Hospital Infection
|February 1, 1988
Summary
Methicillin-resistant Staphylococcus aureus (MRSA) sepsis is often fatal, particularly in older patients or those with severe underlying conditions. Prompt identification and management are crucial for improving outcomes in MRSA bacteremia.
Area of Science:
- Infectious Diseases
- Clinical Microbiology
- Critical Care Medicine
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) is a significant cause of hospital-acquired infections.
- MRSA bloodstream infections (septicemia) are associated with high morbidity and mortality.
- Understanding risk factors and outcomes is crucial for effective patient management.
Purpose of the Study:
- To prospectively investigate the clinical characteristics and outcomes of MRSA septicemia.
- To identify patient demographics and predisposing factors associated with MRSA bacteremia.
- To determine common sources of infection and mortality rates.
Main Methods:
- Prospective study of 88 episodes of MRSA septicemia in 82 patients.
- Data collection included patient demographics, comorbidities, infection sources, and outcomes (transient bacteremia, non-fatal, fatal).
- Statistical analysis to compare characteristics between different outcome groups.
Main Results:
- MRSA septicemia had a high mortality rate, with 33 fatal episodes and 4 where it was a major contributor to death.
- Patients aged over 60 and those with recent surgery or severe underlying disease were more prone to septicemia.
- Circulation access sites were the most common source, followed by non-surgical wounds like burns.
Conclusions:
- MRSA septicemia poses a significant threat, especially to elderly and critically ill patients.
- Early recognition of risk factors and infection sources is vital.
- Improved strategies are needed to reduce the mortality associated with MRSA bacteremia.