用于快速确定血液中乳酸盐度的基质特异性电极的使用和临床重要性

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Updated: Aug 8, 2026

08:19

Hollow Microneedle-based Sensor for Multiplexed Transdermal Electrochemical Sensing

Published on: June 1, 2012

J Aduen¹, W K Bernstein, T Khastgir

¹Department of Medicine, Sinai Hospital of Baltimore, MD 21215-5271.

JAMA

|December 7, 1994

概括

一个新的电极准确地测量了血液中的乳酸. 在健康人群中,乳酸盐水平升高 (>4 mmol/L) 是罕见的,在住院患者中可能表明严重疾病或死亡风险.

科学领域:

临床化学临床化学
生物医学工程生物医学工程
关键护理医学关键护理医学

背景情况:

快速准确地测量循环中的乳酸对于患者的诊断和预后至关重要.
现有的乳酸测定方法可能耗时,限制了它们在急性护理环境中的实用性.

研究的目的:

评估一种新型电压计,酶计,基质特异性电极的准确性和临床意义,用于快速测量乳酸.
为了确定血中乳酸盐度升高的诊断和预后值.

主要方法:

一项前性研究涉及1218名患者和对照人群,涉及各个医院 (ICU,ED,普通病房).
对新电极的验证与两种已建立的实验室参考方法相比.
在不同患者群体中分析血液中乳酸盐度,以评估临床重要性.

主要成果:

新的电极在偏差,精度和相关性 (r值高达0.98) 方面与参考方法有很好的一致性.
与正常患者和普通病房患者相比,ICU和ED患者的乳酸盐度升高 (> 4 mmol/L) 显著更高 (P < .001).
乳酸盐水平>4 mmol/L显示高特异性 (98.2%) 预测ED患者入院,高特异性 (96%) 预测非潜在性住院患者的死亡率.

结论:

新的电比电极提供了精确和准确的乳酸测量.
血液中乳酸盐度超过4mmol/L在健康或非危急病患者中不常见,并表明潜在的担忧.
乳酸盐水平升高 (>4 mmol/L) 与临界病患者和非临界病患者住院患者的预后不佳有关.

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