Abstract：
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 2min 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.
journal_name
J Electrocardioljournal_title
Journal of electrocardiologyauthors
Yasin OZ,Attia Z,Dillon JJ,DeSimone CV,Sapir Y,Dugan J,Somers VK,Ackerman MJ,Asirvatham SJ,Scott CG,Bennet KE,Ladewig DJ,Sadot D,Geva AB,Friedman PAdoi
10.1016/j.jelectrocard.2017.06.008subject
Has Abstractpub_date
2017-01-01 00:00:00pages
620-625issue
5eissn
0022-0736issn
1532-8430pii
S0022-0736(17)30182-6journal_volume
50pub_type
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