Arrhythmias & electrophysiology
Atrial substrate characterization based on bipolar voltage electrograms acquired with multipolar, focal and mini-electrode catheters
Authors' conclusion
When measuring LA BVA, significant differences were seen between focal, multielectrode, and minielectrode catheters.
Study context
- Population
- Patients undergoing high-resolution electroanatomic mapping of the left atrial (LA) (72% men, age 68 ± 15 years)
- Participants
- 25 patients
- Comparison
- Bipolar voltage (BV) amplitude across catheters with different electrode design
- Outcome
- Equivalent BVA cutoffs per catheter for established reference cutoffs (0.1, 0.2, 0.5, 1.0, 1.5 mV) for LA scar and healthy tissue
Main finding
As reported in the abstract
Equivalent BVA cutoffs vs Nav reference
- Scar, Nav 0.5 mV cutoff: Orion equivalent
- 0.35 mV
- Scar, Nav 0.5 mV cutoff: Lasso equivalent
- 0.48 mV
- Scar, 0.2 mV cutoff: Orion equivalent
- 0.09 mV
- Scar, 0.2 mV cutoff: Lasso equivalent
- 0.14 mV
- Healthy tissue, 1.5 mV cutoff: Orion equivalent
- 1.68 mV
- Healthy tissue, 1.5 mV cutoff: Lasso equivalent
- 2.21 mV
Original publication
Atrial substrate characterization based on bipolar voltage electrograms acquired with multipolar, focal and mini-electrode catheters. Europace. Published 11 May 2023. doi:10.
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