Cardiac Event Monitor: Recording Your Heart Rhythm When Symptoms Occur

This test uses a small, portable device called a cardiac event monitor to record your heart's electrical activity over several days or weeks. Unlike a standard electrocardiogram (ECG), which captures only a brief moment in time, the event monitor is worn as you go about your daily routine, allowing it to capture your heart rhythm at the exact moments when you experience symptoms.

This is not a typical laboratory blood or urine test. Instead, it is a documentation tool that records any adverse events (complications) that occur during an endoscopy procedure. An endoscopy is a procedure where a flexible tube with a camera (endoscope) is used to examine the digestive tract or other internal organs. This record captures details about any unexpected problems that happened during the procedure, such as bleeding, perforation (tear), allergic reactions to sedation medications, or other complications.

A clear record of your heart's activity helps your doctor connect symptoms such as dizziness, palpitations, or fainting to specific changes in your heart rhythm. This documentation supports an accurate diagnosis, guides decisions about treatment such as medication or further testing, and can help identify irregular heartbeats that might otherwise go undetected between office visits.

Recording adverse events during endoscopy is crucial for patient safety and medical quality improvement. Healthcare providers use this information to understand what went wrong, how it was managed, and what can be done to prevent similar events in the future. This documentation helps medical teams analyze patterns, improve techniques, and ensure proper follow-up care for patients who experience complications.

The monitor records episodes of abnormally fast heartbeats (tachycardia), abnormally slow heartbeats (bradycardia), skipped or extra beats, and irregular rhythms such as atrial fibrillation. It also saves the times when you press the button to mark symptoms, giving your care team a complete picture of when events happen and how they relate to how you feel.

Common adverse events that may be documented include: bleeding during or after the procedure, perforation (a hole or tear in the organ being examined), adverse reactions to sedation or anesthesia, infection, damage to surrounding organs, or unexpected findings that require immediate attention. The documentation typically includes when the event occurred, how severe it was, what interventions were performed, and the outcome for the patient.