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在心脏移植受体中使用囊素C和血清肌素进行功能评估:对瓦尔甘西克洛维尔剂量的影响
Alberto Pinsino1, Douglas L Jennings2, Annamaria Ladanyi1
1Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York.
概括
在心脏移植接受者中,基于囊素C的功能估计 (eGFRcysC) 与基于肌素的估计 (eGFRsCr) 有显著差异,影响了瓦尔甘西克洛维尔剂量,反映了身体组成和类固醇使用的变化.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 移植医学 移植医学
- 临床化学 临床化学
背景情况:
- 基于血清肌素 (sCr) 的估计球过率 (eGFR) 的准确性在心脏移植 (HT) 接受者中是有限的,因为肌肉质量波动.
- 肌肉质量对cystatin C (cysC) 的影响较小,但可以受到肥胖和类固醇使用的影响.
- 了解eGFR差异对于优化HT后患者管理至关重要.
研究的目的:
- 纵向比较使用HT受体中的cystatin C (eGFRcysC) 和sCr (eGFRsCr) 计算的eGFR.
- 研究身体质量指数 (BMI),类固醇使用和肌肉质量对eGFR差异的影响.
- 探索使用eGFRcysC用于瓦尔甘西克洛维尔 (VGC) 剂量的临床影响.
主要方法:
- 从80名HT接受者的294个血液样本中测量了cysC和sCr.
- 在eGFRcysC和eGFRsCr之间计算的个体内差异 (eGFRdiffcysC-sCr).
- 在一小部分患者 (n=21) 中评估胸部肌肉的测量,以评估肌肉质量和质量.
主要成果:
- 观察到eGFRcysC和eGFRsCr之间存在显著差异,特别是在HT后的早期 (一周后eGFRdiffcysC-sCr -28毫升/分钟/1.73米2的中位数).
- 移植后eGFRcysC保持稳定,而eGFRsCr在第一年内下降.
- 较低的BMI,较高的普德尼松剂量和较大的肌肉质量与eGFR差异有关;eGFRcysC将在46%的样本中改变VGC剂量,主要是减少剂量.
结论:
- 在HT受体中,eGFRcysC和eGFRsCr显示出明显的差异,影响VGC剂量.
- 这些差异很可能受到身体组成和类固醇使用的变化的影响.
- eGFRcysC提供了一个潜在的更稳定和准确的功能评估在这个人群中,指导药物调整.
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