BACKGROUND: Infection remains the major cause of morbidity and mortality in patients with neutropenia, and the beneficial effects of oral prophylaxis remain controversial. METHODS: From 1993 to December 1999, the authors analyzed the clinical and microbiologic outcomes of 144 episodes of febrile neutropenia among adult patients with acute leukemia. RESULTS: Forty-three consecutive episodes occurred among patients who were on ciprofloxacin prophylaxis during 1993-1996 (ciprofloxacin group), and 101 subsequent episodes occurred among patients who were not exposed to ciprofloxacin prophylaxis (control group). There were no differences in clinical presentation, antibiotic treatment received for the episode, or a worse outcome between groups. The rate of bacteremia was similar (12 of 43 patients [28%] vs. 26 of 101 patients [26%], respectively). There was a trend toward a higher rate of Gram positive bacteremia in the control group (12 of 101 patients [12%] vs. 2 of 43 patients [5%]) and a higher rate of Gram negative bacteremia in the ciprofloxacin group (11 of 43 patients [26%] vs. 15 of 101 patients [15%]). Resistance to fluoroquinolones was greater in Escherichia coli blood isolates from patients in the ciprofloxacin group (7 of 8 patients vs. 2 of 9 patients; P = 0.02). CONCLUSIONS: The current results suggest that fluoroquinolone prophylaxis for patients with febrile neutropenia may be abandoned safely in areas with a high prevalence of ciprofloxacin-resistant enterobacteria. Copyright 2003 American Cancer Society
BACKGROUND: Infection remains the major cause of morbidity and mortality in patients with neutropenia, and the beneficial effects of oral prophylaxis remain controversial. METHODS: From 1993 to December 1999, the authors analyzed the clinical and microbiologic outcomes of 144 episodes of febrile neutropenia among adult patients with acute leukemia. RESULTS: Forty-three consecutive episodes occurred among patients who were on ciprofloxacin prophylaxis during 1993-1996 (ciprofloxacin group), and 101 subsequent episodes occurred among patients who were not exposed to ciprofloxacin prophylaxis (control group). There were no differences in clinical presentation, antibiotic treatment received for the episode, or a worse outcome between groups. The rate of bacteremia was similar (12 of 43 patients [28%] vs. 26 of 101 patients [26%], respectively). There was a trend toward a higher rate of Gram positive bacteremia in the control group (12 of 101 patients [12%] vs. 2 of 43 patients [5%]) and a higher rate of Gram negative bacteremia in the ciprofloxacin group (11 of 43 patients [26%] vs. 15 of 101 patients [15%]). Resistance to fluoroquinolones was greater in Escherichia coli blood isolates from patients in the ciprofloxacin group (7 of 8 patients vs. 2 of 9 patients; P = 0.02). CONCLUSIONS: The current results suggest that fluoroquinolone prophylaxis for patients with febrile neutropenia may be abandoned safely in areas with a high prevalence of ciprofloxacin-resistant enterobacteria. Copyright 2003 American Cancer Society
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