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Use of semi-quantitative and quantitative culture methods and typing for studing the epidemiology of central venous catheter-related infections in neonates on parenteral nutritionMüller-Premru, Manica ...To study the epidemiology - especially the impact of contaminated stopcocks - on central venous catheter (CVC) infection and catheter-related sepsis (CRS), semi-quantitative (SQ) and quantitative (Q) ... culture methods and typingof coagulase-negative staphylococci (CNS) were employed in 49 neonates with clinical signs of sepsis while receiving parenteral nutrition in the paediatric intensive care unit. The patients were divided into two groups according to stopcock contamination: group A consisted of 18 patients (36%) with contaminated stopcocks and group B consisted of 31 patients (64%) with sterile stopcocks. Five specimens were obtained from each patient, in additionto that from the stopcock: a swab taken from the skin surrounding the catheter puncture site; the CVC tip; the intradermal segment (IDC); and samples of parenteral fluid and blood. A total of 294 specimens (392 sites) was cultured and micro-organisms were identified. All CNS isolated were typed by biotyping, antibiogram, plasmid analysis and pulsed-field gel electrophoresis (PFGE), and the discriminatory power of the typing methods wascompared. The CVC tips were infected in 25 patients (51%); 15 (83%) in group A and 10 (32%) in group B. Sepsis was detected in 24 neonates (49%), 13 in group A and 11 in group B. This was catheter-related in 15 patients (63%),12 in group A and 3 in group B. CNS were recovered from 13 (52%) of 25 infected CVCs, nine in group A and four in group B. Sixty-five CNS isolates were recovered from these patients and belonged to 14 biotypes, 22 antibiograms, 22 plasmid profiles and 26 PFGE types. Typing showed that in sixof nine patients in group A, CNS of the same type were recovered from the catheter tip and the stopcock, in one patient the catheter tip and skin isolates were the same and in two others the catheter tip isolates were different from stopcock and skin isolates. (Abstract truncated at 2000 charaters).Vir: Journal of medical microbiology. - ISSN 0022-2615 (Letn. 48, 1999, str. 451-460)Vrsta gradiva - članek, sestavni delLeto - 1999Jezik - angleškiCOBISS.SI-ID - 9998041
Avtor
Müller-Premru, Manica |
Gubina, Marija |
Kaufmann, Margareth E |
Primožič, Janez, 1944- |
Cookson, Barry D
Teme
Bacteremia |
Epidemiology |
Parenteral nutrition |
Adverse effects |
Staphylococcal infections |
Epidemiology |
Genetics |
Microbiology |
Staphylococcus |
Classification |
Genetics |
Staphylococcus epidermidis |
Classification |
Genetics |
Infant, newborn |
Bacterial typing techniques |
Biofilms |
Catheters, indwelling |
Coagulase |
Intensive care units, pediatric |
Plasmids |
Veins
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Müller-Premru, Manica | 12193 |
Gubina, Marija | 01521 |
Primožič, Janez, 1944- | 02179 |
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