Relationship of symptom frequency and symptom-rhythm correlation to arrhythmia type and time to detection: Insights from ambulatory electrocardiogram monitoring in over 1 million patients

Symptom-rhythm correlation varied by arrhythmia type and symptom frequency. The median time to actionable arrhythmia was >48 hours, regardless of symptom frequency. Holter may miss clinically meaningful events, even in patients with daily symptoms.