Standard and Precordial Leads Obtained With an Apple Watch
Authors: Peter W. Macfarlane
Journal: Annals of Internal Medicine (2020)

Letters4 August 2020Standard and Precordial Leads Obtained With an Apple WatchPeter W. Macfarlane, DScPeter W. Macfarlane, DScUniversity of Glasgow, Institute of Health and Wellbeing, Glasgow, Scotland (P.W.M.)Search for more papers by this authorAuthor, Article, and Disclosure Informationhttps://doi.org/10.7326/L20-0587 SectionsAboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail TO THE EDITOR:I read with interest Cobos Gil's brief research report (1) noting how a bipolar chest lead could be recorded using the Apple Watch series 4 and 5. I also thank the author for referring to my description of such leads (2).I accept that it is feasible to record bipolar chest leads (in this case, CR leads) using the Apple Watch. However, the examples in Cobos Gil's report show that amplitudes of all components of the electrocardiogram (ECG) waveform differ between the standard precordial leads and the bipolar CR leads. These differences may be irrelevant when looking ...References1. Cobos Gil MÁ. Standard and precordial leads obtained with an Apple Watch. Ann Intern Med. 2020;172:436-437. [PMID: 31766051]. doi:10.7326/M19-2018 LinkGoogle Scholar2. Macfarlane PW. Lead Systems. In: Macfarlane PW, van Oosterom A, Pahlm O, et al, eds. Comprehensive Electrocardiology. Vol. 1. Springer; 2011:377-425. Google Scholar3. Thygesen K, Alpert JS, Jaffe AS, et al; Executive Group on behalf of the Joint European Society of Cardiology (ESC)/American College of Cardiology (ACC)/American Heart Association (AHA)/World Heart Federation (WHF) Task Force for the Universal Definition of Myocardial Infarction. Fourth universal definition of myocardial infarction (2018). Circulation. 2018;138:e618-e651. [PMID: 30571511] doi:10.1161/CIR.0000000000000617 CrossrefMedlineGoogle Scholar4. Muhlestein JB, Le V, Albert D, et al. Smartphone ECG for evaluation of STEMI: results of the ST LEUIS pilot study. J Electrocardiol. 2015 Mar-Apr;48:249-259. [PMID: 25601407] doi:10.1016/j.jelectrocard.2014.11.005 CrossrefMedlineGoogle Scholar5. Macfarlane PW, Malik M. ECG electrode positioning deserves better attention. The BMJ Opinion Blog. 19 December 2018. Accessed at https://blogs.bmj.com/bmj/2018/12/19/macfarlane-and-malik-ecg-electrode-positioning-deserves-proper-attention on 23 December 2019. Google Scholar Author, Article, and Disclosure InformationAffiliations: University of Glasgow, Institute of Health and Wellbeing, Glasgow, Scotland (P.W.M.)Disclosures: The author has disclosed no conflicts of interest. The form can be viewed at www.acponline.org/authors/icmje/ConflictOfInterestForms.do?msNum=L20-0587. PreviousarticleNextarticle Advertisement FiguresReferencesRelatedDetailsSee AlsoStandard and Precordial Leads Obtained With an Apple Watch Miguel Ángel Cobos Gil Standard and Precordial Leads Obtained With an Apple Watch Miguel Ángel Cobos Gil Standard and Precordial Leads Obtained With an Apple Watch Brian White-Guay Metrics 4 August 2020Volume 173, Issue 3Page: 249KeywordsAcute myocardial infarctionConflicts of interestDecision makingDisclosureElectrocardiographyElectrode recordingResearch reporting guidelinesThorax ePublished: 4 August 2020 Issue Published: 4 August 2020 Copyright & PermissionsCopyright © 2020 by American College of Physicians. All Rights Reserved.PDF downloadLoading ...