Why the study?
Does omnipolar electrogram assessment improve the consistency of ventricular myocardial voltage mapping compared to bipolar electrograms in isolated hearts?
Population
15 isolated hearts (5 healthy rabbits, 5 healthy pigs, and 5 diseased humans)
Comparison
Omnipolar electrogram methodology for voltage… vs Bipolar electrograms and Vpps along horizontal…
Design
Preclinical
Key result
Omnipolar electrograms provided physiologically relevant voltages that were highly correlated with maximal bipolar electrograms (0.97±0.08) and demonstrated greater beat-by-beat consistency.
Authors
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Omnipolar mapping may enhance voltage consistency in ventricular substrate assessment; hypothesis-generating in animal models and requires human validation before practice change.
Does omnipolar electrogram assessment improve the consistency of ventricular myocardial voltage mapping compared to bipolar electrograms in isolated hearts?
Omnipolar electrograms provide more consistent and orientation-independent voltage assessments compared to traditional bipolar electrograms in ventricular myocardial mapping.
Magtibay et al. (2017) studied Ventricular tachycardia (n=15). Omnipolar electrograms vs. Bipolar electrograms was evaluated on Voltage peak-to-peak (Vpps) and correlation between omnipolar and bipolar electrograms. Omnipolar electrograms provided physiologically relevant voltages that were highly correlated with maximal bipolar electrograms (0.97±0.08) and demonstrated greater beat-by-beat consistency.