Noninvasive blood potassium measurement using signal-processed, single-lead ecg acquired from a handheld smartphone
Noninvasive blood potassium measurement using signal-processed, single-lead ecg acquired from a handheld smartphone
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DOI：
10.1016/j.jelectrocard.2017.06.008
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发表时间：
2017-09-01
影响因子：
1.3
通讯作者：
Friedman, Paul A.
中科院分区：
文献类型：
--
作者：
Yasin, Omar Z.;Attia, Zachi;Friedman, Paul A.
目的：我们以前使用12导联信号处理ECG来计算血钾水平。我们现在评估这样做的可行性与智能手机使能的单铅，允许远程monitoring.Patients和方法：21血液透析患者举行了一个智能手机配备了廉价的FDA批准的电极三个2分钟的时间间隔在血液透析。为每例患者生成个体化钾估计模型。心电图计算的钾值与后续访视的血钾结果进行比较，以评估钾估计模型的准确性。结果：估计的钾和血钾之间的平均绝对误差为0.38 +/- 0.32 mEq/L（平均钾水平的9%）降至0.6 mEq/L，使用信号差的预测因子。使用连接到智能手机设备上的电极采集的单导联ECG可以被处理以计算接受血液透析的患者的血清钾，误差为9%。总结：使用连接到智能手机上的电极采集的单导联ECG可以被处理，以计算接受血液透析的患者的血清钾。(C)2017爱思唯尔公司All rights reserved.
Objective: We have previously used a 12-lead, signal-processed ECG to calculate blood potassium levels. We now assess the feasibility of doing so with a smartphone-enabled single lead, to permit remote monitoring.Patients and methods: Twenty-one hemodialysis patients held a smartphone equipped with inexpensive FDA-approved electrodes for three 2 min intervals during hemodialysis. Individualized potassium estimation models were generated for each patient. ECG-calculated potassium values were compared to blood potassium results at subsequent visits to evaluate the accuracy of the potassium estimation models.Results: The mean absolute error between the estimated potassium and blood potassium 0.38 +/- 0.32 mEq/L (9% of average potassium level) decreasing to 0.6 mEq/L using predictors of poor signal.Conclusions: A single-lead ECG acquired using electrodes attached to a smartphone device can be processed to calculate the serum potassium with an error of 9% in patients undergoing hemodialysis.Summary: A single-lead ECG acquired using electrodes attached to a smartphone can be processed to calculate the serum potassium in patients undergoing hemodialysis remotely. (C) 2017 Elsevier Inc. All rights reserved.