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Efficacy of Silver Nanoparticles-Impregnated External Ventricular Drain Catheters in Patients with Acute Occlusive Hydrocephalus

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Abstract

Introduction

Catheter-associated infection of cerebrospinal fluid (CSF) is a potentially life-threatening complication of external ventricular drainage (EVD). The purpose of this pilot study was to address the efficacy of silver-impregnated EVD catheters in neurological and neurosurgical patients requiring external CSF drainage due to acute occlusive hydrocephalus.

Methods

Nineteen consecutive patients were enrolled in the treatment arm of the study and data were prospectively recorded for these patients. The control group consisted of 20 patients for whom data were retrospectively assessed. CSF samples were drawn at least three times a week and routine bacterial cultures and CSF analyses were done according to standard protocols. The primary endpoint of the study was the occurrence of catheter-associated ventriculitis (CAV) proven by positive CSF culture. Secondary endpoints were bacterial colonization of the catheter tip and CSF pleocytosis.

Results

In 20 control patients, 5 CAVs were microbiologically diagnosed. In contrast, no positive CSF cultures were found in the treatment group. This difference was statistically significant (P < 0.05). All CAVs occurred later than day 10 after catheter placement. Colonization of the catheter tip was found in 6 patients in the control group and in 5 patients in the treatment group (not significant).

Conclusions

This pilot study indicates that EVD catheters impregnated with silver nanoparticles might be a new option for preventing CAV in neurocritical care patients, and therefore evaluation in a large prospective randomized study is warranted.

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Acknowledgment

Spiegelberg (GmbH & Co.) KG, 21079 Hamburg, Germany, kindly provided silver-impregnated EVDs (Silverline Antimicrobial Ventricular Catheter) free of charge.

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Authors and Affiliations

  1. Department of Neurology, Innsbruck Medical University, Anichstrasse 35, 6020, Innsbruck, Austria

    Peter Lackner, Ronny Beer, Gregor Broessner, Raimund Helbok, Bettina Pfausler, Christian Brenneis, Klaus Engelhardt & Erich Schmutzhard

  2. Department of Neurosurgery, Innsbruck Medical University, Innsbruck, Austria

    Klaus Galiano & Alois A. Obwegeser

  3. Department of Neurosurgery, Otto-von-Guericke University, Magdeburg, Germany

    Claudia Pleifer

  4. Institute of Analytical Chemistry and Radiochemistry, Leopold-Franzens University, Innsbruck, Austria

    Christian Huck

Authors
  1. Peter Lackner
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  2. Ronny Beer
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  3. Gregor Broessner
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  4. Raimund Helbok
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  5. Klaus Galiano
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  6. Claudia Pleifer
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  7. Bettina Pfausler
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  8. Christian Brenneis
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  9. Christian Huck
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  10. Klaus Engelhardt
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  11. Alois A. Obwegeser
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  12. Erich Schmutzhard
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Correspondence to Peter Lackner.

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Lackner, P., Beer, R., Broessner, G. et al. Efficacy of Silver Nanoparticles-Impregnated External Ventricular Drain Catheters in Patients with Acute Occlusive Hydrocephalus. Neurocrit Care 8, 360–365 (2008). https://doi.org/10.1007/s12028-008-9071-1

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  • DOI: https://doi.org/10.1007/s12028-008-9071-1

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