Zio by iRhythm is an end-to-end ambulatory cardiac monitoring service designed to diagnose cardiac arrhythmias, such as Atrial Fibrillation, Tachycardia, and Bradycardia, over an extended period. The service centers around the Zio ECG monitor (a small, water-resistant, leadless patch) which is worn for up to 14 days, providing continuous, uninterrupted ECG recording.
The core of the service's software component is the Zio ECG Utilization Software (ZEUS) System, which employs an advanced, FDA-cleared, deep-learned AI algorithm to process and analyze the millions of heartbeats recorded. The data is then curated and verified by Qualified Cardiac Technicians (QCTs) to generate a comprehensive end-of-wear report for the prescribing physician. The final reports have demonstrated 99% physician agreement.
For clinicians, the service provides the ZioSuite web portal and mobile app, which streamlines clinical workflows, enabling remote patient registration, device tracking, report interpretation, and patient management. Patients are supported by the MyZio mobile app, which allows for digital symptom logging, educational content, and reminders, contributing to high patient compliance.
The Zio service is associated with a higher diagnostic yield and a lower likelihood of retesting compared to traditional 24-48 hour Holter monitoring, making it a highly effective tool for detecting infrequent or sporadic arrhythmias.