TY - JOUR
T1 - Methicillin-resistant Staphylococcus aureus transmission in a low-prevalence healthcare setting
AU - Khanfar, Husam
AU - Senok, A.
AU - Anani, A.
AU - Zinkevich, Vitaly
PY - 2012/8
Y1 - 2012/8
N2 - Background:
The aim of this study was to assess the nosocomial transmission of methicillin-resistant Staphylococcus aureus (MRSA) and the predictive role of colonization pressure (CP) in a low-prevalence healthcare setting.
Methods:
A retrospective analysis of MRSA infection rates from 2004 to 2009 at the Saudi Aramco Dhahran Health Center, Saudi Arabia, was performed. MRSA patient-days, susceptible patient-days, nosocomial incidence and CP were calculated for each month from January 2008 to December 2009.
Results:
During the study period, 878 cases of MRSA colonization/infection were identified. Of these cases, 777 (88.4%) and 101 (11.5%) were community-acquired MRSA (CA-MRSA) and healthcare-associated MRSA (HA-MRSA) cases, respectively. A decrease in the number of HA-MRSA cases and an increase in the number of CA-MRSA cases were observed during the study period. The incidence of nosocomial infection per 1000 susceptible patient-days was 1.17 in 2008 and 0.7 in 2009. The monthly colonization pressure ranged from 0.1 to 1.62 throughout the 2-year period. Nosocomial transmission was observed in 13 months of the 24-month study period. No association between the CP of the preceding month and the incidence of nosocomial transmission in the subsequent month was observed.
Conclusion:
In a setting of low MRSA prevalence, CP does not appear to be a useful predictor of nosocomial transmission or incidence.
AB - Background:
The aim of this study was to assess the nosocomial transmission of methicillin-resistant Staphylococcus aureus (MRSA) and the predictive role of colonization pressure (CP) in a low-prevalence healthcare setting.
Methods:
A retrospective analysis of MRSA infection rates from 2004 to 2009 at the Saudi Aramco Dhahran Health Center, Saudi Arabia, was performed. MRSA patient-days, susceptible patient-days, nosocomial incidence and CP were calculated for each month from January 2008 to December 2009.
Results:
During the study period, 878 cases of MRSA colonization/infection were identified. Of these cases, 777 (88.4%) and 101 (11.5%) were community-acquired MRSA (CA-MRSA) and healthcare-associated MRSA (HA-MRSA) cases, respectively. A decrease in the number of HA-MRSA cases and an increase in the number of CA-MRSA cases were observed during the study period. The incidence of nosocomial infection per 1000 susceptible patient-days was 1.17 in 2008 and 0.7 in 2009. The monthly colonization pressure ranged from 0.1 to 1.62 throughout the 2-year period. Nosocomial transmission was observed in 13 months of the 24-month study period. No association between the CP of the preceding month and the incidence of nosocomial transmission in the subsequent month was observed.
Conclusion:
In a setting of low MRSA prevalence, CP does not appear to be a useful predictor of nosocomial transmission or incidence.
U2 - 10.1016/j.jiph.2012.07.001
DO - 10.1016/j.jiph.2012.07.001
M3 - Article
SN - 1876-0341
VL - 5
SP - 311
EP - 316
JO - Journal of Infection and Public Health
JF - Journal of Infection and Public Health
IS - 4
ER -