event monitor
A cardiac monitoring device activated by the patient when symptoms occur to capture intermittent arrhythmic episodes.
Full Definition
An event monitor is a portable cardiac rhythm recording device designed to capture ECG data during symptomatic episodes that occur infrequently or unpredictably. Unlike continuous Holter monitors, event monitors are activated by the patient when they experience symptoms such as palpitations, dizziness, or chest pain. There are two main types: post-event monitors that store data retroactively when activated, and pre-symptom monitors that continuously loop-record and save data when triggered. Some modern versions can automatically detect and record certain arrhythmias without patient activation. Event monitors are particularly useful for evaluating symptoms that occur less than daily and may be worn for weeks to months.
Usage
Usage note: Distinguish from continuous monitors; emphasize patient-triggered activation in documentation.
In Context
- "The event monitor captured atrial fibrillation during the patient's symptomatic episodes." — Cardiology consultation
- "Patient education regarding proper event monitor activation is essential for diagnostic yield." — Device clinic protocol