Why the study?
The study aimed to propose a novel flexible dry electrode and wearable single-lead ECG patch assembly to continuously monitor AF in a real-life scenario.
Does a wearable single-lead ECG patch with flexible dry electrodes accurately detect atrial fibrillation compared to standard Holter monitoring in patients?
Does a wearable single-lead ECG patch with flexible dry electrodes accurately detect atrial fibrillation compared to standard Holter monitoring in patients?
A novel flexible dry electrode ECG patch demonstrated high accuracy for automatic AF detection during both stationary and movement states in a real-life 24-hour monitoring scenario.
May support wearable AF monitoring with dry electrodes; hypothesis-generating and requires prospective validation.
The aim of this study is to propose a novel flexible dry electrode and assembly to a wearable single-lead ECG patch for continuously monitoring atrial fibrillation (AF) in a real-life scenario. Silver ink was screen-printed on a flexible polyurethane substrate to fabricate the multilayered dry electrode. A wearable recording patch with three dry electrodes was developed to collect single-lead ECG signal, particularly to provide a robust anti-artifact capability by employing a driven right leg electrode as reference. The characterization of the dry electrode based patch was quantified by combing the engineering measurement on raw signal quality and the clinical evaluation of automatical AF detection. A total of 50 patients (age 70 ± 11) were enrolled. Each patient wore one or two patches and a standard Holter simultaneously for a continuous 24 hours ECG recording in a real-life scenario. The averaged R wave peak amplitude, signal-to-noise ratio, and signal-to-artifact ratio were 0.75-1.47 mV, 3-6 dB, and 3-7, respectively. Compared with two different cardiologists' interpretations of the ECGs from dry electrodes, an offline detection algorithm automatically interpreted AF with the overall accuracy 93.57% and 85.94% during the stationary and movement states, respectively. The obtained results demonstrated the ability of using a flexible screen-printed dry electrode and assembly to a wearable patch to effectively record ECG signal in patients even disturbed by body motions, which may establish its clinical validity and applicability.
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Lai et al. (2020) studied this question.
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