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Binder, L. et al.

Binder, Schiel, Binder, Menke, Schüttrumpf, Armstrong, Unterhalt, Erichsen, Hiddemann, Oellerich,

Clinical outcome and economic impact of aminoglycoside peak concentrations in febrile immunocompromised patients with hematologic malignancies.

The aim of this study was to investigate the clinical and economic significance of aminoglycoside peak concentrations in febrile neutropenic patients with hematologic malignancies. Sixty-one patients were treated according to protocol II of the Paul-Ehrlich-Gesellschaft: initial application of gentamicin or tobramycin in combination with a cephalosporin or ureidopenicillin and, after 3 days, a potential change of antibiosis to be decided in case of nonresponse. At the same time, samples were collected by an independent controller. We found a significant dependence of clinical outcome on aminoglycoside peak concentrations (P = 0.004). Twelve of 17 patients with peak concentrations > 4.8 mg/L, but only 13 of 44 patients with concentrations < or = 4.8 mg/L, responded to initial therapy. Average infection-related costs per patient with peak values > 4.8 mg/L were US$1429, $1790, and $1701 for nursing, diagnostics, and therapeutics, respectively (total $4920). Expenses for patients with peak concentrations < or = 4.8 mg/L were approximately 1.8-fold higher (average total $8718). If all 61 patients had achieved peaks > 4.8 mg/L, the potential savings would have totalled $167,112. We conclude that neutropenic patients form a target group for successful pharmacokinetic intervention and cost saving.[1]

References

Clinical outcome and economic impact of aminoglycoside peak concentrations in febrile immunocompromised patients with hematologic malignancies. Binder, L., Schiel, X., Binder, C., Menke, C.F., Schüttrumpf, S., Armstrong, V.W., Unterhalt, M., Erichsen, N., Hiddemann, W., Oellerich, M. Clin. Chem. (1998) [Pubmed]

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