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KMID : 1038020220300020087
Translational and Clinical Pharmacology
2022 Volume.30 No. 2 p.87 ~ p.98
Lessons from a multicenter clinical trial with an approved wearable electrocardiogram: issues and practical considerations
Huh Ki-Young

Jeong Sae-Im
Yoo Hyoung-Gyoon
Piao Meihua
Ryu Hyeong-Ju
Kim Hee-Jin
Yoon Young-Ran
Seong Sook-Jin
Lee Seung-Hwan
Kim Kyung-Hwan
Abstract
Although wearable electrocardiograms (ECGs) are being increasingly applied in clinical settings, validation methods have not been standardized. As an exploratory evaluation, we performed a multicenter clinical trial implementing an approved wearable patch ECG. Healthy male adults were enrolled in 2 study centers. The approved ECGs were deployed for 6 hours, and pulse rates were measured independently with conventional pulse oximetry at selected time points for correlation analyses. The transmission status of the data was evaluated by heart rates and classified into valid, invalid, and missing. A total of 55 subjects (40 in center 1 and 15 in center 2) completed the study. Overall, 77.40% of heart rates were within the valid range. Invalid and missing data accounted for 1.42% and 21.23%, respectively. There were significant differences in valid and missing data between centers. The proportion of missing data in center 1 (24.77%) was more than twice center 2 (11.77%). Heart rates measured by the wearable ECG and conventional pulse oximetry showed a poor correlation (intraclass correlation coefficient = 0.0454). In conclusion, we evaluated the multicenter feasibility of implementing wearable ECGs. The results suggest that systems to mitigate multicenter discrepancies and remove artifacts should be implemented prior to performing a clinical trial.
KEYWORD
Wearable Electronic Devices, Clinical Trial, Multicenter Study
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