人口的药理动力学和在重症患者中优化赛福洛克西姆的剂量
Jaap W A Mouton1, Julian D Machiels2,3, Arthur M A Pistorius1
1Department of Pharmacy, Pharmacology and Toxicology, Radboud University Medical Center, Research Institute for Medical Innovation, Nijmegen, The Netherlands.
British journal of clinical pharmacology
|June 22, 2025
概括
在重症监护室 (ICU) 中的塞福洛キシ姆剂量需要优化. 在ICU患者中,连续输注4.5g/天实现了百分之百的目标实现,与间歇剂量不同,对于素的药理动力学.
科学领域:
- 药理学 药理学是指药理学的学科.
- 密集护理医学 密集护理医学
- 临床药房 临床药房
背景情况:
- 塞福洛克西姆是一种第二代塞法洛斯波林,经常用于重症监护室 (ICU).
- 在ICU患者中,药物动力学 (PK) 存在显著的患者间变异,影响药物疗效.
- 对于在这个人群中实现治疗目标的最佳塞福洛キシ姆剂量策略仍然不清楚.
研究的目的:
- 在ICU患者中研究 cefuroxime 的药理动力学 (PK).
- 为了评估目前的塞福洛キシ姆剂量方案的目标实现.
- 根据目标实现概率 (PTA) 确定最合适的塞福洛キシ姆剂量方案.
主要方法:
- 观察性药理动力学 (PK) 研究,涉及20名ICU患者.
- 采用了两部分模型,估计了淋巴细胞过率 (eGFR) 作为共变量.
- 在未结合的 cefuroxime 的最小抑制度 (%fT > MIC) 以上的计算时间.
主要成果:
- 一个典型的患者的平均eGFR为90毫升/分钟.
- 间歇性 cefuroxime 剂量 (1500 mg q8h) 导致了43%的PTA,MIC为8 mg/L,eGFR为60 mL/min.
- 连续输注 cefuroxime (4.5 克/天) 达到 100% PTA 对于高达 120 mL/分钟的 eGFR.
结论:
- 在大多数ICU患者中,以4.5g/天的持续输注CEFUROXIME可确保最佳的目标实现.
- 间歇性剂量策略可能导致重症患者的塞福洛キシ姆水平低于治疗水平.
- 优化赛福洛キシ姆剂量对于在ICU环境中有效治疗至关重要.
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