Single-Lead ECG Recordings Including Einthoven and Wilson Leads by a Smartwatch: A New Era of Patient Directed Early ECG Differential Diagnosis of Cardiac Diseases?
Why the study?
Smartwatches can record bipolar Einthoven leads, but detecting ischemia or other cardiac diseases requires more leads, especially Wilson chest leads.
Does a six single-lead smartwatch ECG provide comparable signal quality and morphology to a standard 12-lead ECG in healthy subjects?
Comparison
Six single-lead smartwatch ECGs vs standard 12-lead ECG
Design
Feasibility study
Authors
Discussion
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Member takes
Implication
Feasibility of multi-lead smartwatch ECG shown in healthy volunteers; leaves open diagnostic validation in patients with suspected ischemia.
Structured PICO
Does a six single-lead smartwatch ECG provide comparable signal quality and morphology to a standard 12-lead ECG in healthy subjects?
P
Population
50 healthy subjects (16 males; mean age 36 ± 11 years) without known cardiac disorders, and 2 patients with acute anterior myocardial infarction.
I
Intervention
Six single-lead ECG recordings using a smartwatch (Apple Watch Series 4), including Einthoven (I, II, III) and Wilson-like pseudo-unipolar chest leads (Wr, Wm, Wl).
C
Comparator
Standard 12-lead ECG.
O
Outcome
Signal quality of smartwatch ECGs and correct allocation of smartwatch ECG leads to corresponding standard 12-lead ECG leads by three independent cardiologists.surrogate
A smartwatch can feasibly record six single-lead ECGs, including Einthoven and Wilson-like leads, with good signal quality and morphology comparable to a standard 12-lead ECG.
Cite This Study
Samol et al. (2019) studied this question.