Use of (13)-β-D-glucan Monitoring to Clear Candida metapsilosis Ventriculitis and Shunt Infection

Dawn Nolt1, Louise E Vaz1, Christina L Lancioni1

  • 1From the Division of Pediatric Infectious Diseases, Department of Pediatrics.

Abstract

Insights

Monitoring the fungal biomarker (1→3)-β-D-glucan (BDG) in cerebrospinal fluid (CSF) and serum effectively guided treatment for a child with recurrent Candida central nervous system (CNS) infections, preventing relapse after shunt replacement.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Pediatric Neurology

Background:

  • Central nervous system (CNS) candidiasis, particularly in patients with intracranial shunts, presents significant treatment challenges.
  • Cerebrospinal fluid (CSF) cultures often exhibit low sensitivity for diagnosing deep cerebral candidiasis.
  • Device-associated recurrent infections require sensitive diagnostic and monitoring tools.

Purpose of the Study:

  • To evaluate the utility of the fungal biomarker (1→3)-β-D-glucan (BDG) in CSF and serum for guiding antifungal therapy in a pediatric patient with recurrent CNS candidiasis.
  • To assess the role of BDG monitoring in determining the successful eradication of Candida metapsilosis and enabling shunt reimplantation.

Main Methods:

  • Serial measurement of (1→3)-β-D-glucan (BDG) in both CSF and serum samples.
  • Administration of high-dose micafungin as the primary antifungal agent.
  • Therapeutic response assessment based on the resolution of elevated BDG levels.

Main Results:

  • Resolution of elevated CSF and serum BDG levels indicated successful eradication of Candida metapsilosis from CNS and peripheral tissues.
  • This therapeutic assurance permitted the successful insertion of a replacement ventriculoatrial shunt.
  • No recurrence of CNS candidiasis was observed following shunt reimplantation.

Conclusions:

  • Serial BDG monitoring in CSF and serum facilitates an individualized treatment approach for CNS candidiasis in patients with intracranial shunts.
  • This biomarker-guided strategy enabled successful shunt reimplantation and long-term prevention of CNS candidiasis recurrence.
  • The child remained free of CNS candidiasis for 19 months post-treatment, underscoring the efficacy of BDG-guided therapy.