Why the study?
Traditional arrhythmia diagnosis is time-consuming and intermittent, while current wearable sensors are limited by skin-sensor mismatch, motion artifacts, and material trade-offs.
Flexible wearable sensors offer a promising advancement over traditional intermittent monitoring for continuous, real-time arrhythmia detection by improving the skin-sensor interface.
Hypothesis-generating for continuous arrhythmia monitoring; leaves open prospective validation before clinical adoption.
Arrhythmias are one of the leading causes of death in the United States, and their early detection is essential for patient wellness. However, traditional arrhythmia diagnosis by expert evaluation from intermittent clinical examinations is time-consuming and often lacks quantitative data. Modern wearable sensors and machine learning algorithms have attempted to alleviate this problem by providing continuous monitoring and real-time arrhythmia detection. However, current devices are still largely limited by the fundamental mismatch between skin and sensor, giving way to motion artifacts. Additionally, the desirable qualities of flexibility, robustness, breathability, adhesiveness, stretchability, and durability cannot all be met at once. Flexible sensors have improved upon the current clinical arrhythmia detection methods by following the topography of skin and reducing the natural interface mismatch between cardiac monitoring sensors and human skin. Flexible bioelectric, optoelectronic, ultrasonic, and mechanoelectrical sensors have been demonstrated to provide essential information about heart-rate variability, which is crucial in detecting and classifying arrhythmias. In this review, we analyze the current trends in flexible wearable sensors for cardiac monitoring and the efficacy of these devices for arrhythmia detection.
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Guess et al. (2022) studied this question.
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