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Electron-microscopic description of accretions occurring on tips of infected and non-infected central venous catheters.

Abstract：

OBJECTIVE:The purpose of the study was do describe the architecture of accretions occurring on the tips of central venous catheters (CVC). DESIGN:A conservative procedure was used followed by two different techniques of electron microscopy. SETTING AND PATIENTS:the study included 19 catheters which have been used on intensive cared adults, and which were chosen among those of parallel 300 CVC study. MEASUREMENTS AND RESULTS:CVC were considered sterile, contaminated, colonized or infected according to microbiological and clinical criteria. CVC were found to remain much cleaner than in past descriptions. When present, accretions were located on the olive-shaped end, and displayed stratified structures with three types of material: amorphous material, thrombus components and inflammatory cells. Bacteria were not seen, even on culture positive CVC. Candida albicans was found on one CVC in the cytoplasm of granulocytes, and made no direct contact with the plastic surface. CONCLUSION:This technique should contribute to the understanding of the pathobiology of CVC infection and provide information proving or precluding the involvement of microbial adherence to polymers in vivo.

journal_name

Intensive Care Med

journal_title

Intensive care medicine

authors

Poisson DM,Touquet S,Bercault N,Arbeille B

doi

10.1007/BF01708582

keywords:

subject

Has Abstract

pub_date

1992-01-01 00:00:00

pages

464-8

issue

8

eissn

0342-4642

issn

1432-1238

journal_volume

18

pub_type

杂志文章

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