由实验室确定的等离体与透析机确定的等离体的相关性
Joaquim Casals1, José Jesús Broseta1, Rosa María Fernández2
1Servicio de Nefrología y Trasplante Renal, Hospital Clínic, Barcelona, Spain.
Nefrologia
|June 18, 2024
概括
血液透析监测器可以估计血 (pNa) 水平,与实验室测量有很好的相关性,特别是在透析前. 这表明监控器可能为血液透析患者的pNa跟踪提供可靠的替代方案.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 临床化学 临床化学
- 医疗器械技术 医疗器械技术
背景情况:
- 血度 (pNa) 波动在血液透析 (HD) 患者中很常见.
- 血液透析监测器可以使用基于离子透析的内部算法来估计pNa.
- 精确的pNa监测对于在HD期间管理液体和电解质平衡至关重要.
研究的目的:
- 为了评估由弗雷斯尼乌斯6008CARE系统HD监控器pNa估计的准确性.
- 为了将监视器估计的pNa与慢性HD患者的实验室测量pNa进行比较.
- 评估两种方法之间的相关性和一致性.
主要方法:
- 一个单一中心前性观察性研究对慢性HD患者进行.
- 使用Fresnius 6008 CARE系统监视器和生物化学实验室 (间接电位计) 测量了pNa.
- 在透析前和后收集血液样本;统计分析包括散射图,斯皮尔曼相关性和布兰德-阿尔特曼图.
主要成果:
- 在透析前监视器估计的pNa和实验室测量的pNa (R 2 = 0.683,p<0.001) 之间观察到良好的相关性.
- 透析后的测量显示了较弱的相关性 (R 2 = 0.442,p <0.001).
- 布兰德-阿尔特曼分析表明,透析前和透析后的测量都有系统错误,置信区间很宽.
结论:
- 弗雷斯尼乌斯6008 CARE系统高频监测器提供了很好的pNa估计,特别是在透析前的值.
- 这些发现表明,监视器可能是追踪HD患者pNa的可行工具.
- 建议进行进一步的研究,以对这些发现进行外部验证.
相关概念视频
01:26Regulation of Sodium and Potassium
483
The regulation of sodium and potassium ion concentrations in the human body is a complex process governed primarily by hormones such as aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP).
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily...
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily...
483
01:15Dialysis
635
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
635
01:24Roles of Electrolytes: Sodium and Potassium
352
Sodium plays a crucial role in maintaining fluid and electrolyte balance and overall bodily homeostasis. Sodium balance is primarily regulated by kidney function, which adjusts sodium elimination to match dietary intake and maintain proper electrolyte levels. Sodium is the most abundant cation in the extracellular fluid (ECF) and is found in salts such as sodium chloride (NaCl) and sodium bicarbonate (NaHCO3). Although cellular plasma membranes are relatively impermeable to sodium, its role in...
352
01:30Equipments Used To Measure Blood Pressure
957
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
957