期刊
CANADIAN JOURNAL OF HOSPITAL PHARMACY
卷 75, 期 3, 页码 186-192出版社
CANADIAN SOC HOSPITAL PHARMACISTS
DOI: 10.4212/cjhp.3161
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This study compared the risk of neutropenia associated with piperacillin-tazobactam (P/T) and cefazolin in an adult population and described the characteristics of neutropenia episodes observed. The results showed that the risk of neutropenia appeared to be similar between P/T and cefazolin.
Background: Neutropenia is an adverse effect associated with the use of several antibiotics, including piperacillin-tazobactam (P/T). Previous findings have suggested that the risk of neutropenia in children is significantly higher with P/T than with ticarcillin-clavulanate. Objectives: To compare the risk of neutropenia associated with P/T and with cefazolin in an adult population and to describe the characteristics of neutropenia episodes observed. Methods: This descriptive retrospective study involved patients aged 18 years or older who received a minimum of 10 days of treatment with P/T or cefazolin between January 2009 and December 2013. Patients who experienced neutropenia (absolute neutrophil count < 1.5 x 10(9)/L) were compared, using univariate and multivariate logistic regression models, between those who received P/T and those who received cefazolin. Results: A total of 207 patients were included (104 who received P/T and 103 who received cefazolin). Ten episodes of neutropenia were observed, 5 with each antibiotic (4.8% and 4.9%, respectively; odds ratio 0.99, 95% confidence interval 0.278-3.527). The mean cumulative dose of piperacillin was 290.4 g among patients who experienced neutropenia and 247.0 g among all patients treated with P/T, and the mean treatment duration was 24.0 days and 21.0 days, respectively. The average time before the onset of neutropenia was slightly longer with P/T than with cefazolin (22.0 versus 17.2 days, p = 0.38). Conclusions: Although these results require confirmation in a larger clinical trial (to lessen possible attribution bias), the risk of neutropenia appeared to be similar between P/T and cefazolin.
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