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Bacteria on cathete...
Bacteria on catheters in patients undergoing peritoneal dialysis
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- Pihl, Maria (author)
- Malmö högskola,Odontologiska fakulteten (OD)
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- Davies, Julia (author)
- Malmö högskola,Odontologiska fakulteten (OD)
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- Johansson, Ann-Cathrine (author)
- Lund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine
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- Svensäter, Gunnel (author)
- Malmö högskola,Odontologiska fakulteten (OD)
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(creator_code:org_t)
- 2013-01-01
- 2013
- English.
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In: Peritoneal Dialysis International. - : SAGE Publications. - 1718-4304 .- 0896-8608. ; 33:1, s. 51-59
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Abstract
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- Background: Peritonitis is the leading cause of morbidity for peritoneal dialysis (PD) patients, and microbial biofilms have previously been identified on catheters from infected patients. However, few studies of catheters from patients without clinical signs of infection have been undertaken. The aim of the present study was to investigate the extent to which bacteria are present on catheters from PD patients with no symptoms of infection. Methods: Microbiologic culturing under aerobic and anaerobic conditions and confocal laser scanning microscopy were used to determine the distribution of bacteria on PD catheters from 15 patients without clinical signs of infection and on catheters from 2 infected patients. The 16S rRNA gene sequencing technique was used to identify cultured bacteria.. Results: Bacteria were detected on 12 of the 15 catheters from patients without signs of infection and on the 2 catheters from infected patients. Single-species and mixed-microbial communities containing up to 5 species were present on both the inside and the outside along the whole length of the colonized catheters. The bacterial species most commonly found were the skin commensals Staphylococcus epidermidis and Propionibacterium acnes, followed by S. warneri and S. lugdunensis. The strains of these micro-organisms, particularly those of S. epidermidis, varied in phenotype with respect to their tolerance of the major classes of antibiotics. Conclusions: Bacteria were common on catheters from patients without symptoms of infection. Up to 4 different bacterial species were found in close association and may represent a risk factor for the future development of peritonitis in patients hosting such micro-organisms. Perit Dial Int 2013; 33(1):51-59 www.PDIConnect.com epub ahead of print: 01 Aug 2012 doi:10.3747/pdi.2011.00320
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Urologi och njurmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Urology and Nephrology (hsv//eng)
Keyword
- Biofilm
- 16S rRNA gene sequencing
- anaerobic culture
- confocal
- microscopy
Publication and Content Type
- art (subject category)
- ref (subject category)
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