Central Venous Catheters and Bloodstream Infection During Induction Therapy in Children With Acute Lymphoblastic

Kristin Bergmann1, Henrik Hasle, Peter Asdahl

  • 1*Department of Pediatrics, Aarhus University Hospital, Aarhus †Department of Pediatrics, Odense University Hospital, Odense ‡Department of Pediatrics, Aalborg University Hospital, Aalborg, Denmark.

Insights

The type of central venous catheter (CVC) used in children with acute lymphoblastic leukemia (ALL) during induction therapy did not impact the risk of bloodstream infection (BSI). This finding applies to both nontunneled and tunneled CVCs.

Area of Science:

  • Pediatric Oncology
  • Infectious Diseases
  • Hematology

Background:

  • Central venous catheters (CVCs) are essential for administering chemotherapy during induction therapy for acute lymphoblastic leukemia (ALL).
  • Bloodstream infections (BSIs) are a significant complication in pediatric ALL patients, potentially delaying treatment.
  • Understanding the influence of CVC type on BSI risk is crucial for optimizing patient care.

Purpose of the Study:

  • To evaluate the association between CVC type and the risk of first-time bloodstream infection (BSI) in pediatric ALL patients undergoing induction therapy.
  • To compare BSI incidence between children with nontunneled CVCs and those with tunneled CVCs with external lines (TE).

Main Methods:

  • Retrospective analysis of 136 newly diagnosed pediatric ALL patients treated between 2008 and 2014 at three Danish centers.
  • Patients were monitored from CVC placement until BSI, CVC removal, death, or day 28.
  • Cumulative incidence of BSI was calculated and compared between CVC groups.

Main Results:

  • The 28-day cumulative incidence of BSI was comparable between nontunneled CVC (28%) and TE CVC (33%) groups.
  • Gram-positive infections were the most common type of BSI (67%).
  • Subgroup analyses indicated higher gram-negative isolates with TE CVCs and lower BSI rates in older patients (>9 years) with TE CVCs and T-ALL patients.

Conclusions:

  • The type of central venous catheter (CVC) inserted at diagnosis does not significantly influence the risk of bloodstream infection (BSI) in pediatric patients with acute lymphoblastic leukemia (ALL) during induction therapy.
  • While overall BSI risk appears similar, specific infection patterns (gram-negative) and patient subgroups (older patients, T-ALL) may show variations based on CVC type.
  • Further research may explore other factors influencing BSI risk beyond CVC type in this vulnerable population.

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