离子间隙的诊断准确性,以确定有毒的度:一个单中心的回顾性观察研究
Hiroyuki Honda1, Kazuki Deuchi2, Makusu Fukasawa2
1Department of Critical Care Medicine, Niigata University Medical and Dental Hospital, Niigata City, Japan.
Clinical toxicology (Philadelphia, Pa.)
|July 29, 2024
概括
的毒性可以通过减少的离子间隙来表明. 纠正的离子间隙计算,考虑到专蛋白和乳酸盐,可能有助于识别无需直接测量的有毒水平.
科学领域:
- 临床化学 临床化学
- 毒理学 毒理学 毒理学
- 内部医学 内部医学
背景情况:
- 疗法具有狭窄的治疗指数,增加了毒性风险.
- 减少的离子间隙曾经与毒性有关,但这种关系需要澄清.
- 血液水平的直接测量是标准的,但可能耗时.
研究的目的:
- 评估各种离子间隙计算方法在检测有毒度方面的有用性.
- 为了确定校正的离子间隙值是否可以作为毒性的指标.
- 评估不同离子间隙方法的诊断性能,以确定升高的水平.
主要方法:
- 血液样本的回顾性分析与度测量.
- 使用常规,白蛋白校正和白蛋白和乳酸校正方法计算阳离子间隙.
- 较低度 (<1.5 mmol/L) 和有毒度 (≥1.5 mmol/L) 的样本之间的离子间隙值的比较.
- 统计分析包括相关性,后勤回归和接收器运行特征 (ROC) 曲线.
主要成果:
- 41.7%的样本具有有毒度 (≥1.5 mmol/L).
- 含量较高的样本显示阴离子间隙值明显较低.
- 蛋白和乳酸校正的离子间隙方法显示出最高的诊断准确度 (曲线下的面积为0.86).
结论:
- 离子间隙,特别是当对专蛋白和乳酸盐进行校正时,可以成为潜在毒性的有价值指标.
- 纠正的离子间隙测量可能有助于早期检测升高的水平,可能减少立即直接度测试的需要.
- 阳离子间隙值可能有助于排除毒性,正如负概率为0.1.1所建议的那样.
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