Arrhythmias & electrophysiologyDiagnostic or prognostic study
Characterization of unipolar electrogram morphology: a novel tool for quantifying conduction inhomogeneity
- Diagnostic accuracy study
- epicardial mapping
Authors' conclusion
The Electrical Fingerprint Score is a novel tool to quantify the severity of CI using only unipolar EGM characteristics recorded.
Study context
- Population
- Patients undergoing CABG with epicardial mapping of the right atrium (RA) and left atrium, including Bachmann's bundle
- Participants
- 235 patients
- Outcome
- Quantification of conduction inhomogeneity severity (amount of conduction block) from unipolar electrograms (EGMs)
Performance
As reported in the abstract
Correlation of the Electrical Fingerprint Score with conduction inhomogeneity
RA Electrical Fingerprint Score correlation with amount of conduction inhomogeneity in both atria
r = 0.70, P < 0.001
Further findings
EGM features vs conduction inhomogeneity
- Increased conduction inhomogeneity associated with decreased potential voltages and increased low-voltage areas (LVAs), LDPs and fractionated potentials (FPs)
Original publication
Characterization of unipolar electrogram morphology: a novel tool for quantifying conduction inhomogeneity. Europace. Published 1 November 2023. doi:10.1093/europace/euad324
Summarised from the published abstract; every number is checked against it