Building a large public database of de-identified electrocardiogram data from a single emergency department Public Deposited

This summary describes the creation of a publically-available database of over 80,000 electrocardiogram (ECG) tracings obtained from patients treated in a single emergency department in a three year period. It describes the process of obtaining the files from the clinical ECG database, processing the text of the electrocardiogram reads, and classifying the findings within the ECGs against a preexisting terminology standard. Future work includes using the qualitative method of thematic analysis to identify categories of concepts not expressed fully in the terminology standard. The issues and methodology of de-identification to prepare the database for public release are discussed.

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