慢性病患者的GFR测量:简化IOHEXOL血清除技术的性能和可行性
Fabiola Carrara1, Flavio Gaspari1, Matias Trillini1
1Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Clinical Research Center for Rare Diseases "Aldo e Cele Daccò", Bergamo, Italy.
PloS one
|July 17, 2024
概括
缩短的iohexol血清除模型用于GFR测量,其准确性不如标准方法. 种群药理动力学 (popPK) 模型对晚期CKD中的GFR不可靠,简化的一组组模型高估了GFR.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 药理动力学 药理动力学
- 医学诊断 医学诊断 医学诊断
背景情况:
- 黄金标准的胰岛素脏清除在临床上是不可行的.
- 参考两部分,10小时的iohexol方法是复杂的.
- 需要简化,准确的GFR测量方法.
研究的目的:
- 评估一个简化的两部分人群药理动力学 (popPK) 模型,用于GFR.
- 与标准的8小时模型比较缩短的单间iohexol模型.
- 评估简化GFR测量技术的准确性和可靠性.
主要方法:
- 在16名患者中,比较了popPK模型与参考10小时两段IOHEXOL方法.
- 在101名患者中,比较了缩短 (5,6,7小时) 的单间模型和8小时模型.
- 使用总偏差指数 (TDI),一致性相关系数 (CCC) 和覆盖概率 (CP) 评估性能.
主要成果:
- 波普克模型显示性能不够好 (TDI 11.11%,CCC 0.809,CP 54.10%).
- 与8小时模型相比,缩短的单间模型高估了GFR (p <0.0001).
- 7小时模型 (TDI 7.02%,CCC 0.815) 和6小时模型 (TDI 7.26%,CCC 0.803) 显示出比5小时模型更好的性能.
结论:
- 在III-IV期CKD中,popPK模型对GFR测量不可靠.
- 缩短的单间模型,特别是5小时的模型,比8小时的参考模型更不准确.
- 精确的GFR测量需要适当的IOhexol血清除协议;应该避免过度简化.
相关概念视频
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