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Related Experiment Video

Updated: Jul 22, 2026

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

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Pacemaker troubleshooting: improved efficacy using a new diagnostic digital Holter recording system.

J P Moak¹, B Gunderson, V Freedenberg

¹Department of cardiology, Children's National Medical Centre, Washington, DC 20010, USA. jmoak@CNMC.org

Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology

|February 16, 2002

Summary

Asymptomatic cardiac pacemaker dysfunction can be challenging to diagnose. A new digital recording system improved diagnostic accuracy for sensing abnormalities, identifying lead insulation failure and saving costs.

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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

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Area of Science:

Cardiology
Biomedical Engineering
Medical Device Technology

Background:

Asymptomatic cardiac pacing system dysfunction is often detected via long-term ambulatory monitoring.
Atrial and ventricular sensing abnormalities in pacemakers can be subtle and difficult to diagnose.
Traditional pacemaker analysis methods may not always identify the root cause of sensing issues.

Observation:

Two patients presented with sensing abnormalities detected solely through Holter monitoring.
Initial pacemaker reprogramming attempts based on deductive analysis were unsuccessful.
A novel digital recording system was employed for advanced diagnostic evaluation.

Findings:

The digital recording system captured surface electrocardiographic data, intracardiac electrograms, and Marker Channel data.
This comprehensive data collection enabled a definitive diagnosis of pacing lead insulation failure.
The new system significantly enhanced diagnostic sensitivity for pacemaker malfunctions.

Implications:

Advanced digital recording systems offer improved diagnostic capabilities for cardiac pacing anomalies.
Accurate diagnosis of lead insulation failure can prevent unnecessary interventions and optimize patient care.
Enhanced diagnostic sensitivity can lead to cost savings in pacemaker management and troubleshooting.