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在长期的脊椎手术中首次使用塞福洛キシ姆的目标组织度:在重量按剂量重复使用后的持续评估

Magnus Andreas Hvistendahl^1,2, Mats Bue^1,2,3, Pelle Hanberg^1,2

¹Aarhus Denmark Microdialysis Research, Orthopaedic Research Laboratory, Aarhus University Hospital, Aarhus N, Denmark.

British journal of clinical pharmacology

|April 1, 2025

概括

这项研究发现,在长脊椎手术期间,重复服用 cefuroxime 有效地保持了目标组织度高于金黄色葡萄球菌的最小抑制度. 这确保了适当的抗微生物预防,以预防术后感染.

科学领域:

手术感染预防手术感染预防
脊柱外科手术中的药理动力学
抗微生物预防优化优化

背景情况:

手术后的脊柱感染是一个重大问题,需要有效的抗微生物预防.
目前对黄素的剂量策略缺乏关于目标组织度的可靠临床数据.
在复杂的脊椎手术中,优化素的输送对于预防手术部位感染至关重要.

研究的目的:

在长期的脊椎手术期间,持续评估外科和术后的塞福洛キシ姆组织度.
确定各种组织中黄金葡萄球菌 (4微克/毫升) 的最小抑制度 (MIC) 以上的时间.
评估按重量剂量测量黄素在脊椎手术患者中达到治疗度的疗效.

主要方法:

招募了20名接受脊柱形手术的患者,接受了低血压麻醉.
静脉注射塞福洛キシ姆 (20 mg/kg) 进行了手术前和手术后4小时的治疗.
微透析探针对脊椎骨,肌肉,皮下组织和伤口部位的塞福洛キシ姆度进行了长达12小时的抽样.

主要成果:

在所有测量的组织和血中,在整个手术持续时间内,Cefuroxime在MIC (fT>MIC4) 上实现了100%的时间.
在第一个剂量间隔期间,骨,肌肉和皮下组织中, cefuroxime fT>MIC4的中位数为93%.
第二次剂量间隔显示了持续的塞福洛キシ姆fT>MIC4,从血中的70%到表面伤口组织中的100%.

结论:

重复重量注射的素 (20 mg/kg) 确保了均且足够的手术内组织暴露 (100% fT>MIC4).
这种剂量方案为5.5-7.5小时提供足够的手术后 cefuroxime 度 (>4μg/mL).
这些发现支持在长脊椎手术中使用这种基于体重的 cefuroxime 疗法进行有效的抗微生物预防.

关键词:

抗生素预防抗生素预防微透析是一种微透析.药理动力学是药理动力学的一个方面.药物动力学药物动力学脊柱外科手术脊柱外科手术体重-剂量体重-剂量

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