• D L Hazel, J Graham, J P Dickinson, A C Newland, and S M Kelsey.
• Department of Haematology, Royal London Hospital, Whitechapel, UK.
• J Chemother. 1997 Aug 1;9(4):267-72.

AbstractThe efficacy of piperacillin-tazobactam as first line empiric therapy was assessed in 54 febrile neutropenic episodes in 42 patients (27 male, 15 female) with haematological malignancy. Nineteen (35%) episodes were bacteraemias (15 Gram-positive, 4 Gram-negative), 5 (9%) were clinically documented (Hickman line sites) and 30 (56%) were pyrexias of unknown origin. Study therapy was initiated after a median of 4 days of neutropenia (range 1-30). Eighteen (33%) episodes responded to piperacillin-tazobactam without a need for treatment modification. Four (7%) episodes initially responded to piperacillin-tazobactam but required treatment modification for fungal superinfection. Of the 19 bacteraemias, 6 (32%) were eradicated or presumed eradicated by piperacillin-tazobactam. Of the 32 (60%) episodes which failed to respond to piperacillin-tazobactam, 11 (34%) responded to anti-fungal therapy; 14 (44%) responded to a glycopeptide and 5 (16%) responded to a second-line broad spectrum antibacterial agent. Two (6%) patients died, both in the presence of progressive malignancy. There was no significant toxicity associated with piperacillin-tazobactam. We conclude that piperacillin-tazobactam is effective as empiric monotherapy in neutropenic fever and may reduce the requirement for glycopeptides.

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