Can 'search and destroy' reduce nosocomial methicillin-resistant Staphylococcus aureus in an Irish hospital?

Area of Science:

• Healthcare epidemiology
• Infectious disease control
• Public health interventions

Background:

• Methicillin-resistant Staphylococcus aureus (MRSA) poses a significant healthcare challenge.
• Ireland's Department of Health recommends a 'search and destroy' program for MRSA.
• Limited data exists on the effectiveness of 'search and destroy' in Irish hospitals.

Purpose of the Study:

• To evaluate the impact of interventions aimed at reducing MRSA.
• To assess the effect of decreased MRSA result turnaround time and pre-emptive isolation.
• To analyze MRSA infection and colonization rates in a hospital setting.

Main Methods:

• Quantitative, quasi-experimental interventional cohort study design.
• Monitoring MRSA infection and colonization rates pre- and post-intervention.
• Interventions included reduced MRSA result turnaround time (2007) and pre-emptive isolation (2008).

Main Results:

• Hospital-acquired MRSA infections and colonization rates decreased in 2007 and 2008.
• Interventions were associated with a reduction in MRSA rates.
• A definitive causal link could not be established due to study design and low MRSA endemicity.

Conclusions:

• The 'search and destroy' program, with optimized turnaround times and pre-emptive isolation, shows promise in reducing MRSA.
• Further research is needed to establish causality in low-prevalence settings.
• Hospital infection control strategies are crucial for managing MRSA.