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Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
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Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus

Published on: October 14, 2022

Mode of action of an antimicrobial biomaterial for use in hydrocephalus shunts

Roger Bayston1, Waheed Ashraf, Catherine Bhundia

  • 1Biomaterials-Related Infection Group, Division of Orthopaedic and Accident Surgery, C Floor West Block, University Hospital, Nottingham NG7 2UH, UK. roger.bayston@nottingham.ac.uk

The Journal of Antimicrobial Chemotherapy
|April 2, 2004
PubMed
Abstract

Insights

A new antimicrobial shunt material effectively kills bacteria within 52 hours, significantly reducing the risk of hydrocephalus shunt infections without systemic antibiotics.

Area of Science:

  • Biomaterials science
  • Infectious disease research
  • Neurosurgery

Background:

  • Shunt infection is a major complication in hydrocephalus treatment, often caused by staphylococci.
  • Bacteria colonize shunt tubing, forming biofilms that necessitate shunt removal.
  • Current antibiotic prophylaxis lacks clear evidence of efficacy.

Purpose of the Study:

  • To investigate the antimicrobial mechanism of an impregnated shunt material.
  • To assess bacterial adherence and killing kinetics on the novel material.

Main Methods:

  • Exposure of plain and impregnated shunt materials to Staphylococcus epidermidis.
  • Evaluation of bacterial adherence using scanning electron microscopy, chemiluminescence, and culture.
  • Determination of bacterial killing time (tK(100)) via serial assays and microscopy.

Main Results:

  • The antimicrobial material did not inhibit bacterial adherence.
  • Complete killing of adhered bacteria was achieved within 48-52 hours, even with a protein conditioning film.

Conclusions:

  • The impregnated antimicrobial shunt material demonstrates potent bactericidal activity.
  • This novel material holds promise for significantly reducing shunt infection rates in hydrocephalus patients.
  • It offers an alternative to systemic antibiotics, avoiding associated risks and side effects.

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