Infections of febrile neutropenic patients in malignant hematological diseases (second study period)

Area of Science:

• Hematology
• Infectious Diseases
• Oncology

Background:

• Neutropenic patients with hematological diseases are susceptible to infections.
• Treatment strategies for febrile neutropenia evolve over time.
• Previous treatment regimens included routine ciprofloxacin prophylaxis.

Purpose of the Study:

• To compare febrile episodes in neutropenic patients before and after changes in treatment protocols.
• To evaluate the impact of not using routine ciprofloxacin prophylaxis and adding granulocyte-macrophage colony-stimulating factor (GM-CSF) on infection spectra and outcomes.
• To analyze trends in Gram-positive bacteremia and lower respiratory infections.

Main Methods:

• Retrospective analysis of 61 febrile episodes in 27 neutropenic patients between 1998 and 2001.
• Comparison of data with a preceding 3-year period.
• Documentation of treatment modifications, including cessation of routine ciprofloxacin prophylaxis and addition of GM-CSF.

Main Results:

• A shift in the clinical and microbiological spectrum of infections was observed.
• Increased incidence of Gram-positive bacteremia.
• Higher rates of lower respiratory tract infections.
• No significant changes in the overall number or rate of infections.
• Mortality rates remained statistically unchanged.

Conclusions:

• Modifications in prophylactic and therapeutic strategies for febrile neutropenia did not significantly impact overall infection rates or mortality.
• The observed shift towards Gram-positive bacteremia and lower respiratory infections warrants continued monitoring and potential adjustments in empirical treatment guidelines.
• GM-CSF addition alongside antimicrobial therapy may influence infection patterns without altering overall outcomes in this patient population.