Clinical Evaluation of Remote Patient Monitoring Devices for Post-Cardiac Surgery Patients: A Comparative Analysis of the Omnyk Wearable Ring and FDA-Approved Pulse Oximeter

Abstract

Introduction: Cardiovascular disease patients often require continuous monitoring post-surgery to detect complications early. The AVIDA ring, a wearable monitoring device, offers potential advantages for remote patient monitoring (RPM) by providing real-time tracking of heart rate (HR) and oxygen saturation (SpO₂).
Methods: In this observational prospective study, 44 post-cardiac surgery patients were monitored using the AVIDA ring and a standard clip-on pulse oximeter to evaluate HR and SpO₂ accuracy. Pearson correlation coefficients were calculated to compare device readings. Outliers in HR, SpO₂, and inter-beat interval (IBI) were also tracked.
Results: Correlation analyses indicated significant positive associations between AVIDA and clip-on device readings, with Pearson correlation coefficients of 0.6845 for HR and 0.6833 for SpO₂. Outliers were more frequent among patients with post-coronary artery bypass graft or valve replacement surgeries and occurred more during the daytime, especially in patients with irregular medication adherence.
Discussion: The AVIDA ring demonstrates reliable monitoring capabilities with potential for RPM in post-cardiac patients. It also demonstrates enhanced capabilities in detecting outliers.