Maintaining accuracy of recording and coding in a central ECG laboratory is essential to a clinical trial or health survey nationally and internationally. Random error may occur by haphazard application of the rules. When this occurs, true differences between groups are obscured. Systematic error is potentially more serious and can lead to false apparent differences between centers and over time. This is particularly serious when incidence of specific ECG markers of disease, such as indicators of ischemic heart disease, left ventricular hypertrophy, or subclinical predictors of disease, is monitored by measurement of sequential ECGs.
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(2010). Quality Control of Visual and Electronic Coding. In: The Minnesota Code Manual of Electrocardiographic Findings. Springer, London. https://doi.org/10.1007/978-1-84882-778-3_17
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DOI: https://doi.org/10.1007/978-1-84882-778-3_17
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