AVALON: Another large real-world study comparing ambulatory cardiac monitoring services

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The Total Package

The right mix of clinical accuracy,1 outstanding patient compliance,2 and elegant implementation to streamline your practice like never before.3

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Advanced monitors

Our state-of-the-art monitors are designed with patients in mind,4-7 resulting in astounding patient compliance,2 ensuring the data captured are continuous and uninterrupted.6,7

Efficient solutions

The iRhythm monitoring service helps to streamline the use of healthcare resources and support your efforts in building a world-class cardiovascular program.3,8-11 

Exceptional accuracy

We bring precision you can trust1 to your practice through our monitoring services that provide the highest diagnostic yield, the lowest likelihood for retest,9-13 and end-of-wear reports with 99% physician agreement.14
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An end-to-end cardiac monitoring service

The iRhythm monitoring service provides you with everything your practice needs. From our advanced, yet simple-to-use Zio® ECG monitors15,16 to our elegant data management solutions, we bring together devices, data analysis, and reporting in a single service.

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Advanced AI with a human touch

Our FDA-cleared, deep-learned AI algorithm is proven to be as accurate as expert cardiologists,17-20 enabling you to confidently diagnose arrhythmias including atrial fibrillation.1 The iRhythm monitoring service delivers accurate and succinct reports.1 The recorded data is processed by our algorithm, then curated and verified by Qualified Cardiac Technicians.17-20

Keep reading

Clinical Article
Russo P, Coetzer H, Hendrickson EM, Boyle K, Wright B., Am J Manag Care. 2025
Assessment of Variation in Ambulatory Cardiac Monitoring (AVALON) Study
A retrospective study of analyzing commercially insured patient populations, examined how monitoring strategy influenced arrhythmia diagnosis, clinical outcomes, and healthcare resource utilization.
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Clinical Article
Reynolds et al, American Heart Journal, 2023.
Comparative Effectiveness of ACM Strategies (CAMELOT Study)
A retrospective study of variations in ACM strategies, clinical outcomes and health care costs in diagnostic-naïve patients
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Clinical Article
Barrett et al., American Journal of Medicine, 2014.
Comparison of 24-Hour Holter Monitoring Versus 14-Days
A prospective study comparing the detection of arrhythmia events over total wear time with the Zio device to Holter monitoring.
Read more
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Full support

Questions about products, billing, or our services? We have you covered.

iRhythm offers dedicated support to help with issues like inventory management and customer satisfaction. We even have a specialized billing team to help manage revenue cycle questions and billing inquiries available 24/7/365. 

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  1. Data on file. iRhythm Technologies, 2023.
  2. Data on file. iRhythm Technologies, 2022.
  3. ZioSuite Clinical Reference Manual. iRhythm Technologies, 2022.
  4. Zio AT Clinical Reference Manual. iRhythm Technologies, 2022.
  5. Zio AT does not require battery changes or charging. Zio AT has wear time transmission limits and is contraindicated for critical care patients. Refer to the Zio AT Clinical Reference Manual for additional information.
  6. Zio XT Clinical Reference Manual. iRhythm Technologies, 2019.
  7. Zio monitor Instructions for Use. iRhythm Technologies, 2023.
  8. 99% of physicians agree with the comprehensive end-of-wear report. Based on a review of all online Zio XT, Zio monitor, and Zio AT end-of-wear reports. Data on file. iRhythm Technologies, 2023.
  9. Reynolds et al. Comparative effectiveness and healthcare utilization for ambulatory cardiac monitoring strategies in Medicare beneficiaries. Am Heart J. 2024;269:25–34. https://doi.org/10.1016/j.ahj.2023.12.002
  10. The study is based on the previous generation Zio XT device data. The devices used in the Zio LTCM monitoring service are deemed substantially equivalent. Additional data on file.
  11. Zio LTCM service refers to Zio XT and Zio monitor service.
  12. In testing for specified arrhythmias defined by Hierarchical Condition Categories (HCC) 96.
  13. The Zio service facilitates a diagnosis as determined by a physician.
  14. Based on a review of all online Zio XT, Zio monitor, and Zio AT end-of-wear reports. Data on file. iRhythm Technologies, 2023.
  15. Battisti et al. Abstract 4141717: Feasibility of point-of-wear patient satisfaction surveys to validate patient-centered product enhancements: results from over 300,000 patients for long-term ambulatory cardiac monitoring. Circulation. 2024;150:A4141717. doi:10.1161/circ.150.suppl_1.4141717 https://www.ahajournals.org/doi/abs/10.1161/circ.150.suppl_1.4141717
  16. Data on file. iRhythm Technologies, 2024.
  17. Data on file. iRhythm Technologies, 2020.
  18. Hannun et al. Cardiologist-level arrhythmia detection and classification in ambulatory electrocardiograms using a deep neural network. Nat Med. 2019;25:65–69. https://doi.org/10.1038/s41591-018-0268-3
  19. Deep-learned algorithm is only available in the United States, European Union, Switzerland, United Kingdom, and Japan.
  20. FDA 510K clearance, CE mark, UKCA mark, and PMDA-approval..

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