Diagnostic accuracy of a single‐lead portable ECG device for measuring QTc prolongation

Background To assess the diagnostic accuracy of a single‐lead portable ECG device for measuring QTc‐intervals in comparison with a standard 12‐lead ECG. Methods Adult patients visiting the cardiology outpatient clinic for a 12‐lead recording were also measured with a portable single‐lead ECG recorde...

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Bibliographic Details
Published in:Annals of noninvasive electrocardiology 2020-01, Vol.25 (1), p.e12683-n/a
Main Authors: Bekker, Charlotte L., Noordergraaf, Fauve, Teerenstra, Steven, Pop, Gheorghe, Bemt, Bart J. F.
Format: Article
Language:English
Subjects:
cardiac monitoring
Cardiology
Diagnostic systems
Echocardiography
EKG
Electrocardiography
Electrocardiography, Ambulatory - methods
Electrocardiography, Ambulatory - statistics & numerical data
Female
Humans
Intervals
Long QT Syndrome - diagnosis
Male
Measurement methods
Measuring instruments
Middle Aged
New Technologies
portable device
Portable equipment
Prolongation
QTc
QT‐interval
Reproducibility of Results
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Summary:Background To assess the diagnostic accuracy of a single‐lead portable ECG device for measuring QTc‐intervals in comparison with a standard 12‐lead ECG. Methods Adult patients visiting the cardiology outpatient clinic for a 12‐lead recording were also measured with a portable single‐lead ECG recorder (HeartcheckTM). QTc‐intervals were determined by two cardiologists. Perfect agreement was defined as a limit of ≤10 ms between the two measurement methods. Results Hundred one ECGs were recorded. QTc‐interval mean differences between the two measurement methods was substantially outside our definition of perfect agreement (‐31.9 [SD±41.3] ms). Conclusion In conclusion, the Heartcheck single‐lead ECG device is not accurate for measuring QTc‐intervals.
ISSN:1082-720X
1542-474X
DOI:10.1111/anec.12683