Volume 4 Supplement 1

Antimicrobial Resistance and Infection Control: Abstracts from the 3rd International Conference on Prevention and Infection Control (ICPIC 2015)

Open Access

Bacterial colonization of central venous catheters after heart valve surgery: a risk factor study

  • A De La Chapelle1,
  • A Mihoubi2,
  • N Balarac3,
  • M Raucoules-Aime4 and
  • P Dellamonica5
Antimicrobial Resistance and Infection Control20154(Suppl 1):P209

DOI: 10.1186/2047-2994-4-S1-P209

Published: 16 June 2015

Introduction

In the presence of a prosthetic heart valve, the colonization of a central venous catheter (CVC) has been implicated as a risk factor for endocarditis. Avoiding bacterial colonization of Central Venous Catheters (CVCs) is an everyday challenge for clinicians

Objectives

This study evaluated EuroSCORE (Score use for predicting surgical mortality) and the preoperative presence of diabetes to identify patients at a higher risk of a bacterial contamination of the central venous catheter (CVC) after heart valve replacement or valvuloplasty.

Methods

An observational evaluation was conducted from January 2006 through January 2013 on prospective data submitted to a database. 1324 consecutive patients after valve surgery were included (from January 2006 to December 2010). The systematic cultures of CVC were performed for all patients regardless of infection symptoms. A long-term monitoring (2 years) was done by phone call (up to January 2013). Patients suspected of prosthetic valve endocarditis had an echocardiography, and a blood analysis (particularly, blood cultures). Statistical analysis was processed by Systat 11 using Chi 2 test; Student’s t test; Kruskal-Wallis test; Fisher exact test and a ‘step-by-step’ logistic regression. A p value < 0.05 was considered statistically significant.

Results

The catheter-related bacteraemia was 5‰ or 0.84/1000 catheter days. The values of the additive and logistic EuroSCOREs were not significantly higher in case of CVC colonization. EuroSCOREs higher than 6 were significantly but only moderately involved with the occurrence of CVC colonization (p = 0.034) (Odds Ratio 1.76; 95% CI [1.04; 2.97]). Diabetes was significantly but moderately associed with CVC colonization (p = 0.041) (Odds Ratio 1.87; 95% CI [1.02; 3.43]). Among parameters of euroSCORE, an ejection fraction of < 30% was closely related to CVC colonization (p = 0.004) (Odds Ratio 4.91; 95% CI [1.65; 14.55]). The catheter’s exposure influenced significantly catheter colonization.

Conclusion

A poor left ventricular function is the main risk factor in bacterial colonization of CVC. Global risk score and prexisting diabete are not useful to predict postoperative CVC colonization

Disclosure of interest

None declared.

Authors’ Affiliations

(1)
Anesthesiology, institut Arnault Tzanck
(2)
Cardiology, institut Arnault Tzanck
(3)
Biostatistic, institut Arnault Tzanck
(4)
Anesthesiology, CHU
(5)
Infectious diseases, CHU

Copyright

© De La Chapelle et al; licensee BioMed Central Ltd. 2015

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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