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Intensive Care Medicine

, Volume 22, Issue 10, pp 1066–1069 | Cite as

Retention of the antibiotic teicoplanin on a hydromer-coated central venous catheter to prevent bacterial colonization in postoperative surgical patients

  • A. Bach
  • D. Darby
  • B. Böttiger
  • H. Böhrer
  • J. Motsch
  • E. Martin
Original

Abstract

Objective

Antibioticcoated intravascular catheters may be an effective means of decreasing bacterial colonization and subsequent catheter-related infection. The present study was designed to investigate the retention of the antibiotic teicoplanin on a hydromer-coated intravenous catheter and the effect of this antibiotic coating on catheter bacterial colonization.

Design

A prospective, randomized pilot study.

Setting

Operating rooms (ORs) and an intensive care unit (ICU) at a university hospital.

Patients

A consecutive group of 20 male patients undergoing major abdominal surgery.

Interventions

Control (C,n=10) or teicoplanin-coated (T;n=10) single-lumen central venous catheters were inserted before surgery in the OR. Catheters were withdrawn at the discretion of the physicians in the ICU after various periods.

Measurements

The teicoplanin content of the catheter material was assessed using a bioassay withBacillus subtilis after complete elution of the antibiotic from the catheter. Bacterial colonization was measured using a quanitative culture technique after the catheter lumen had been flushed and the catheter segments sonicated.

Main results

Nearly three-quarters of the initial teicoplanin coating (374±103 μg; mean±SD) were released during the first day of catheterization, and after 36 h of intravenous catheterization, no antibiotic was retained on the catheter. No significant difference could be found either in the incidence of bacterial colonization between test (n=3) and control (n=4) catheters or in the number of colony-forming units (CFU) on the catheter segments (T, 263±104 CFU/cm; C, 372±294 CFU/cm; mean±SEM).

Conclusion

The retention of teicoplanin antibiotic coating on hydromer catheters is only short term if catheters are inserted intravenously. This may limit clinical antibacterial efficacy.

Key words

Central venous catheter Bacterial colonization Antimicrobial coating Teicoplanin Catheter-related infection 

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • A. Bach
    • 1
  • D. Darby
    • 2
  • B. Böttiger
    • 1
  • H. Böhrer
    • 1
  • J. Motsch
    • 1
  • E. Martin
    • 1
  1. 1.Department of AnesthesiologyUniversity of HeidelbergHeidelbergGermany
  2. 2.Institute of Medical MicrobiologyUniversity of HeidelbergHeidelbergGermany

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