Manual QT interval measurement with a smartphone-operated single-lead ECG versus 12-lead ECG: a within-patient diagnostic validation study in primary care

ObjectiveTo determine the accuracy of QT measurement in a smartphone-operated, single-lead ECG (1L-ECG) device (AliveCor KardiaMobile 1L).DesignCross-sectional, within-patient diagnostic validation study.Setting/participantsPatients underwent a 12-lead ECG (12L-ECG) for any non-acute indication in p...

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Veröffentlicht in:	BMJ open 2021-11, Vol.11 (11), p.e055072
Hauptverfasser:	Beers, Lisa, van Adrichem, Lisa P, Himmelreich, Jelle C L, Karregat, Evert P M, de Jong, Jonas S S G, Postema, Pieter G, de Groot, Joris R, Lucassen, Wim A M, Harskamp, Ralf E
Format:	Artikel
Sprache:	eng
Schlagworte:	Agreements Cardiac arrhythmia Cardiology Cross-Sectional Studies Electrocardiography general medicine (see internal medicine) General practice / Family practice Heart rate Humans Medical diagnosis Patients Primary care Primary Health Care Sensitivity and Specificity Smartphone Smartphones Validation studies
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Beschreibung
Zusammenfassung:	ObjectiveTo determine the accuracy of QT measurement in a smartphone-operated, single-lead ECG (1L-ECG) device (AliveCor KardiaMobile 1L).DesignCross-sectional, within-patient diagnostic validation study.Setting/participantsPatients underwent a 12-lead ECG (12L-ECG) for any non-acute indication in primary care, April 2017–July 2018.InterventionSimultaneous recording of 1L-ECGs and 12L-ECGs with blinded manual QT assessment.Outcomes of interest(1) Difference in QT interval in milliseconds (ms) between the devices; (2) measurement agreement between the devices (excellent agreement
ISSN:	2044-6055 2044-6055
DOI:	10.1136/bmjopen-2021-055072