Molecular Analysis and Risk Factors for Escherichia coli Producing Extended-Spectrum β-Lactamase Bloodstream Infection in Hematological Malignancies

Abstract

Patients who had been previously hospitalized and who received cephalosporins during the previous month, have an increased risk of ESBL-EC bacteremia. Mortality was significantly increased in patients with ESBL-EC BSI. A polyclonal trend was detected, which reflects non-cross transmission of multiresistant E.coli isolates.