A multimodal infection control concept in a burn intensive care unit - lessons learnt from a meticillin-resistant
C Baier1, R Ipaktchi2, E Ebadi1
1Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.
Background:
Meticillin-resistant Staphylococcus aureus (MRSA) is a frequently encountered pathogen in burn units. Burn patients are especially susceptible to MRSA acquisition and MRSA spread may cause outbreaks in burn units.
Aim:
To report the characteristics and successful control of an MRSA outbreak and to demonstrate a multimodal infection control concept.
Methods:
In addition to a pre-existing infection control concept, several control measures were implemented including weekly prevalence screenings for MRSA, reinforcement of disinfection, restriction of admissions, and short-term unit closure. Epidemiologic investigation and environmental examinations were performed. The outbreak isolates were analysed by pulsed-field gel electrophoresis and spa-typing. A PubMed search was conducted, focusing on MRSA outbreaks in burn units.
Findings:
This outbreak of hospital-acquired MRSA affected eight patients during a seven-month period, yielding an attack rate of 8%. Epidemiologic and environmental examinations suggested patient-to-patient transmission, which was confirmed by molecular analysis of bacterial isolates revealing a monoclonal pattern. In accordance with findings from other outbreaks in burn units, the implemented measures including patient screening and temporary unit closure resulted in successful control of the outbreak.
Conclusion:
A comprehensive concept is required to control the spread of all multidrug-resistant micro-organisms including MRSA on a burn unit. Where patients colonized or infected with MRSA appear to be the main reservoir, transfer of these patients to other units, or temporary closure of the unit, accompanied by intensive cleaning are very effective measures to stop transmission events.
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