1. Measurement of Individual Alteration in Perioperative ECGs During Elective Percutaneous Coronary Intervention
- Author
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Gemke, Philip, Bender, Theresa, Idrobo-Avila, Ennio, Dathe, Henning, Krefting, Dagmar, Kacprowski, Tim, and Spicher, Nicolai
- Subjects
FOS: Biological sciences ,Quantitative Biology - Tissues and Organs ,Tissues and Organs (q-bio.TO) - Abstract
The increasing availability of wearable electrocardiography (ECG) devices enables the continuous monitoring of individual ECG alterations. This could be beneficial for patients suffering from acute ischemia but with non-standard ECG findings that do not fit to the subject-independent and absolute thresholds defined in clinical guidelines. In this work, we evaluate the inter-patient magnitude of individual ECG alterations during ischemia. The freely available STAFF III database provides 12-lead ECG recordings of patients before, during, and after elective percutaneous coronary intervention(PCI), where a coronary vessel is widened with a balloon inflation. We compute individual alterations of ST-interval and T-wave amplitudes w.r.t. QRS amplitude over time for each patient and lead. We demonstrate that determining relative ST-interval/T-wave amplitudes and deriving individual alterations over time is feasible in standard and non-standard ECG recordings. To demonstrate clinical relevance, we use the features for differentiating N=54 STAFF III patients with atherosclerotic plaque in either the right coronary artery (RCA) or left ascending artery (LAD). Results show significant differences in 5 leads for ST-interval alterations and 3 leads for T-wave alterations, which are also suggested by clinical guidelines for ischemia detection. Clinical relevance- Assessing individual alterations over time could eventually close the gap in ECG evaluation of patients presenting with pre-existing heart conditions and non-standard ECGs., 4 pages, 2 figure, EMBC 2023; submitted 07.02.23
- Published
- 2023