Arrhythmias & electrophysiology
Understanding electrical pulmonary vein antrum for paroxysmal atrial fibrillation: Further look into superhigh-density electroanatomic mapping of the left atrium
Authors' conclusion
PAF patients have the PVA electrical substrate including slow conduction, complex fractionated electrograms, and ERP dispersion.
Study context
- Population
- Patients with paroxysmal atrial fibrillation (AF) and matched paroxysmal supraventricular tachycardia (PSVT) controls undergoing high-density LA mapping
- Participants
- 18 vs 9
- Comparison
- Paroxysmal AF vs paroxysmal supraventricular tachycardia
- Paroxysmal AF (PAF)n = 18
- PSVTn = 9reference
- Outcome
- Electrophysiologic properties of the PV antrum (slow conduction, complex fractionated electrograms, ERP)
Methodological detailshigh-density electroanatomic mapping, age- and sex-matched controls, Each pulmonary vein antrum (PVA) divided into 8 segments and each pulmonary vein (PV) into 4 segments
- High-density electroanatomic mapping
- Age- and sex-matched controls
- Each PVA divided into 8 segments and each PV into 4 segments
Main finding
As reported in the abstract
PVA electrophysiologic properties
- PAF vs PSVT: P = 0.001
- PAF vs PSVT: P < 0.001
- PAF vs PSVT: P = 0.011
- PAF vs PSVT: P = 0.001
- PAF vs PSVT: P = 0.007
- PAF vs PSVT: P < 0.001
- PAF vs PSVT: P < 0.001
Original publication
Understanding electrical pulmonary vein antrum for paroxysmal atrial fibrillation: Further look into superhigh-density electroanatomic mapping of the left atrium. Heart Rhythm. Published 11 September 2024. doi:10.
Summarised from the published abstract; every number is checked against it