A case series of Bacillus cereus septicemia in patients with hematological disease
Abstract
OBJECTIVE: Bacillus cereus (B. cereus) septicemia is a cause of life-threatening infection in patients with hematologic diseases. However, preventing a fatal prognosis in patients with B. cereus infection has not yet been achieved due to insufficient clinical investigations. To discover more optimal treatment strategies, we analyzed B. cereus septicemia in patients with hematologic diseases.
METHODS: At our institution, we observed 13 cases of B. cereus septicemia in 12 patients with hematologic diseases between January 2001 and September 2010. The susceptibility of B. cereus strains to antibiotics was also analyzed.
RESULTS: Of 12 patients, four died of B. cereus septicemia. In this study, the delayed administration of appropriate antibiotics (starting >24 hours after presentation), the presence of liver dysfunction and evidence of central nervous system (CNS) involvement tended to result in a fatal prognosis. All of the bacterial strains were found to be susceptible to vancomycin and quinolones (such as ciprofloxacin and levofloxacin), whereas many strains were resistant to clindamycin (76.9%) and imipenem (30.8%). In seven of 10 patients, central venous (CV) catheter tips were removed and routinely cultured. Catheter tip cultures were positive for B. cereus in three of seven patients.
CONCLUSION: Although not specific to B. cereus bacteremia, patients who died of B. cereus tended to present with CNS symptoms and/or liver dysfunction. Our clinical data suggested that…
How strong is the evidence?
Evidence Hub reads this as a case series, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health. Reported size: 12 participants or records.
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