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Editor's Note
August 31, 2020

Addressing the New Last-Mile Problem in Health Care With Home-Based Complex Diagnostics

Author Affiliations
  • 1Center for Digital Health, Stanford University School of Medicine, Stanford, California
  • 2VA Palo Alto Health Care System, Palo Alto, California
  • 3Associate Editor, JAMA Cardiology
JAMA Cardiol. 2020;5(10):1180-1181. doi:10.1001/jamacardio.2020.4379

In a Brief Report in this issue of JAMA Cardiology by Spaccarotella and colleagues,1 the authors investigate the accuracy of using a direct-to-consumer smartwatch with single-channel electrocardiogram (ECG) capability to generate a multilead ECG for detection of ST-segment deviation. In 54 patients with ST-elevation myocardial infarction and 27 patients with non–ST-elevation myocardial infarction in a coronary care unit, the authors placed the watch in different body positions to obtain a full set of limb and precordial ECG leads. They compared ST-segment morphology classifications and amplitudes to a medical-grade, 12-lead ECG. Overall, there was good agreement in ST deviation and location.

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