和的差异与慢性病中的过量没有很强的相关性:一个离子间隙问题
Moritz Kerbl-Knapp1, Gregor Lindner2, Georg-Christian Funk3,4
1Department of Internal Medicine 1, Pyhrn-Eisenwurzenklinikum Steyr, Steyr, Austria. Moritz.Kerbl-Knapp@ooeg.at.
International urology and nephrology
|November 11, 2024
概括
化差异 (BE_Na-Cl) 的基数过多不是慢性病 (CKD) 患者高性代谢酸性查的可靠查工具,这是由于血清离子间隙的变化. 一个完整的血液气体分析仍然是准确诊断的必要条件.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 临床化学 临床化学
- 酸平衡是指酸平衡的情况.
背景情况:
- 代谢性酸症在慢性病 (CKD) 中很常见.
- 准确的诊断需要血液气体分析,这并不总是可以获得的.
- 作为一种潜在的选工具,研究了化差异 (BE_Na-Cl) 的基数过剩.
研究的目的:
- 评估BE_Na-Cl在对慢性病患者高化代谢性酸性查中的准确性.
- 通过各种统计方法评估BE_Na-Cl和基数过剩 (BE) 之间的相关性.
主要方法:
- 对168名未透析的慢性病患者的酸数据进行了回顾性分析.
- 应用线性回归,布兰德-阿尔特曼图和ROC分析来比较BE_Na-Cl和BE.
- 调查混因素,包括血清阳离子间隙的变化.
主要成果:
- 在BE_Na-Cl和BE.之间发现了适度的相关性 (R2=0.60).
- 布兰德-阿尔特曼分析显示,偏见微不足道,但达成一致的范围很大.
- 对BE ≤ 2 mmol/l的ROC分析表明BE_Na-Cl ≤ 2 mmol/l的中度灵敏度 (0.75) 和特异性 (0.86),血清离子间隙变化影响精度.
结论:
- 在CKD患者中,BE_Na-Cl不是查高血酸性化症的足够准确的参数,原因是血清阳离子间隙的显著变化.
- 只有当BE_Na-Cl≤5mmol/l时,才应该怀疑高酸性化症.
- 完整的血液气体分析对于诊断CKD中的酸性疾病是不可或缺的.
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