Abstract Since the publication of the Australian consensus guidelines in 2011, the routine use of prophylactic antibiotics in patients with neutropenia has remained controversial, because of concern that the risks of promoting antimicrobial resistance outweighed the level of evidence that their use reduced mortality. Populations at risk have changed over this period and now include a multitude of new cancer therapies, such as targeted cancer therapies and immunotherapies. Emerging understanding about the importance and role of the microbiome in defining treatment response and patterns of antibiotic resistance has also expanded. In addition, the management of neutropenic fever has improved significantly through the development and routine implementation of sepsis pathways. These updated consensus guidelines review recent evidence for the use of antibacterial prophylaxis in adults and children receiving cancer therapies associated with neutropenia. Recommendations presented in these guidelines were based on evaluating current evidence for the benefits and harms of antibacterial prophylaxis while considering the current Australian and New Zealand healthcare setting. In most circumstances, the potential harm of antibiotic resistance, adverse effects of antibiotics and disruption to the microbiome, outweighed the benefit of reducing the incidence of infection, without a benefit in mortality.
Lindsay et al. (Mon,) studied this question.
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