Invasive fungal infections in children with hematologic and malignant diseases

Sevinc N Ozsevik1, Gulnar Sensoy, Arzu Karli

  • 1Departments of *Pediatrics †Pediatric Infectious Diseases ‡Pediatric Hematology and Oncology, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey.

Abstract

Insights

Invasive fungal infections (IFIs) are a significant cause of mortality in pediatric hematologic and malignancy patients. Early identification of yeast versus mold infections and risk factors like central venous catheters is crucial for timely treatment and improved outcomes.

Area of Science:

  • Pediatric Hematology Oncology
  • Infectious Diseases
  • Clinical Microbiology

Background:

  • Invasive fungal infections (IFIs) pose a significant threat to immunocompromised children.
  • Hematologic and malignant diseases increase susceptibility to IFIs.
  • Understanding IFI clinical features and outcomes in this population is critical.

Purpose of the Study:

  • To evaluate the clinical features and outcomes of IFIs in children with hematologic and malignant diseases.
  • To identify risk factors associated with IFI development and mortality.
  • To differentiate between yeast and mold infections in this patient cohort.

Main Methods:

  • Retrospective review of medical records for children diagnosed with IFIs between January 2010 and December 2011.
  • Diagnosis of proven, probable, and possible IFIs based on European Organization for Research and Treatment of Cancer/Mycosis Study Group criteria.
  • Evaluation of demographic, clinical, and laboratory characteristics of affected patients.

Main Results:

  • IFI occurred in 7.2% of febrile episodes across 56 pediatric patients.
  • Candida parapsilosis was the most common yeast isolate; 70% of fungemia cases involved central venous catheters (CVCs).
  • Mold infections were associated with higher C-reactive protein, lower neutrophils, and prolonged neutropenia compared to yeast infections; 20.9% of patients died, with CVC and bone marrow transplantation being risk factors.

Conclusions:

  • IFIs are a major cause of mortality in pediatric hematology-oncology patients.
  • Mold infections correlate with prolonged, profound neutropenia; yeast infections, particularly non-albicans Candida, are linked to CVC use.
  • Targeted, early treatment strategies informed by these findings can reduce mortality.

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