Cardiac Rhythm Device Threshold Testing Via Pulse Oxymetry
Vladimir Fridman1, Cesare Saponieri1, Nabil El Sherif1
1Cardiac Electrophysiology Services, Department of Medicine, New York Methodist Hospital, Brooklyn, NY.
Journal of Atrial Fibrillation
|December 3, 2016
Summary
Pulse oximetry offers a new, accurate method for cardiac rhythm device threshold testing. This approach simplifies the process, potentially complementing traditional electrocardiogram (ECG) methods for improved patient care.
Area of Science:
- Cardiovascular Medicine
- Biomedical Engineering
- Medical Device Technology
Background:
- Threshold testing is crucial for cardiac rhythm device (CRD) function monitoring.
- Current ECG-lead based testing methods are time-consuming and burdensome for patients.
Purpose of the Study:
- To introduce and evaluate a novel pulse oximetry-based method for CRD threshold testing.
- To compare the accuracy and reliability of pulse oximetry testing against standard electrogram (EGM) methods.
Main Methods:
- Twenty patients with diverse CRDs and pacing modes were enrolled.
- Simultaneous atrial and ventricular threshold testing was performed using both standard EGM and the new pulse oximetry methods.
- Threshold values determined by both methods were compared.
Main Results:
- Ventricular thresholds matched between methods in 75% of tests.
- Atrial thresholds matched in 58% of tests.
- Discrepancies in remaining tests were minimal, varying by only +0.25 V.
Conclusions:
- Pulse oximetry-based threshold testing is an accurate and reliable alternative.
- This method offers a simpler and potentially faster approach to CRD testing.
- Pulse oximetry may serve as a valuable complementary tool to traditional EGM testing.
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