Incidence and timing of potentially high-risk arrhythmias detected through long term continuous ambulatory electrocardiographic monitoring

Authors: Matthew D. Solomon, Jingrong Yang, Sue Hee Sung, Martha L. Livingston, George Sarlas, Judith C. Lenane & Alan S. Go.

Summary:

Retrospective analysis of 122,815 long term continuous monitors (Zio) to evaluate clinical utility.

Key Findings:

Many clinically relevant arrhythmias were detected after 48 hours, beyond the capability of standard Holter monitors.

Median time to first detection:

Non-sustained VT: 74 hours

Sustained VT: 22 hours

Sinus pauses: 22 hours

AF pauses: 31 hours

High-grade AV block: 40 hours

About 7% of sustained VT and 20% of non-sustained VT were identified only after 7 days.

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