Journal
JOURNAL OF HOSPITAL INFECTION
Volume 63, Issue 4, Pages 385-392Publisher
W B SAUNDERS CO LTD
DOI: 10.1016/j.jhin.2006.03.019
Keywords
mupirocin; liver disease; carriage; infection; Staphylococcus aureus
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The tong-term efficacy (55 months) of eradication of nasal carriage of meticillin-resistant Staphylococcus aureus (MRSA) by mupirocin was assessed for MRSA infections in a gastroenterology unit receiving patients for tong hospital stays. In total, 2242 patients were included in the study; 92% had been hospitalized in another hospital before admission to the study department, 64% had chronic liver diseases (LD), 25% had miscellaneous medical conditions and 11% were admitted following gastroenterotogical. surgery. Three consecutive periods were considered in the analysis. Nasal carriage at admission was similar in all three periods (10.9 vs 7.5 vs 8.6% in Periods 1, 2 and 3, respectively), while acquired nasal. carriage decreased in the whole population (14.3 vs 16.2 vs 10.2% in Periods 1, 2 and 3, respectively, P=0.006) and in LD patients (15.8 vs 18.7 vs 11.9% in Periods 1, 2 and 3, respectively, P=0.018). The incidence of MRSA infections (N per total number of hospitalization-days) was 1.41 per 1000 in the year before initiation of eradication, 1.40 in Period 1, 0.74 in Period 2 and 0.59 in Period 3 (P = 0.022). The incidence of MRSA infections among patients was 7.0% in Period 1, 3.7% in Period 2 and 3.1% in Period 3 in LD patients (P = 0.0062). The corresponding figures were 5.5, 3.0 and 2.4% for the whole population (P = 0.0024). The mortality caused by MRSA was 0. 31, 0.19 and 0. 13% (P = 0. 03 5) in Periods 1, 2 and 3, respectively. The numbers of resistant strains among those acquired during hospitalization were 12 in Period 1, four in Period 2 and six in Period 3.
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