Levofloxacin Prophylaxis in Pediatric and Young Adult Allogeneic Hematopoietic Stem Cell Transplantation Recipients Does not Prevent Infective Complications and Infections-related Deaths - Scorecard - MDSpire

Levofloxacin Prophylaxis in Pediatric and Young Adult Allogeneic Hematopoietic Stem Cell Transplantation Recipients Does not Prevent Infective Complications and Infections-related Deaths

  • By

  • Davide Leardini

  • Giacomo Gambuti

  • Edoardo Muratore

  • Francesco Baccelli

  • Francesca Gottardi

  • Francesco Venturelli

  • Tamara Belotti

  • Arcangelo Prete

  • Marco Fabbrini

  • Patrizia Brigidi

  • Silvia Turroni

  • Riccardo Masetti

  • December 3, 2024

  • 0 min

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Clinical Scorecard: Efficacy of Levofloxacin Prophylaxis in Preventing Infectious Complications and Mortality in Pediatric and Young Adult Recipients of Allogeneic Hematopoietic Stem Cell Transplantation

At a Glance

CategoryDetail
ConditionInfectious complications in pediatric and young adult allogeneic hematopoietic stem cell transplantation (allo-HCT) recipients
Key MechanismsLevofloxacin (LVX) prophylaxis aims to reduce bacterial infections and febrile neutropenia by broad-spectrum antibacterial activity; impact on gut microbiota and antibiotic resistance evaluated
Target PopulationPediatric and young adult patients undergoing allo-HCT
Care SettingPediatric transplant unit in a tertiary care hospital

Key Highlights

  • LVX prophylaxis did not reduce incidence of acute graft-versus-host disease, bloodstream infections, or infection-related mortality in allo-HCT recipients.
  • Patients receiving LVX prophylaxis showed higher rates of quinolone-resistant bacterial strains during infections.
  • LVX prophylaxis was associated with alterations in gut microbiota composition, including reduced abundance of Blautia, Enterococcus, and Actinomyces at neutrophil engraftment.

Guideline-Based Recommendations

Diagnosis

  • Monitor for febrile neutropenia and bloodstream infections in pediatric allo-HCT recipients.

Management

  • Routine use of systemic antibacterial prophylaxis with levofloxacin is weakly recommended against in children and young adults undergoing allo-HCT due to low evidence of benefit.
  • Prompt empirical antibiotic treatment should be initiated upon febrile neutropenia rather than routine prophylaxis.

Monitoring & Follow-up

  • Surveillance for antibiotic-resistant bacterial strains during infections is advised, especially in patients receiving quinolone prophylaxis.
  • Monitor gut microbiota changes as they may impact transplant outcomes.

Risks

  • Increased prevalence of quinolone-resistant bacterial infections with LVX prophylaxis.
  • Potential gut microbiota dysbiosis associated with antibiotic prophylaxis.
  • Possible severe adverse drug effects of quinolones in pediatric patients warrant cautious use.

Patient & Prescribing Data

143 pediatric and young adult patients undergoing 144 allo-HCT procedures

Levofloxacin prophylaxis did not improve survival or reduce infection rates but increased antibiotic resistance and altered gut microbiota composition.

Clinical Best Practices

  • Avoid routine levofloxacin prophylaxis in pediatric allo-HCT recipients due to lack of demonstrated benefit and risk of resistance.
  • Implement antimicrobial stewardship programs to guide prophylaxis and empirical therapy decisions.
  • Use prompt empirical antibiotic therapy upon febrile neutropenia rather than prophylaxis.
  • Consider monitoring gut microbiota as part of transplant outcome assessment.

References

Original Source(s)

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