Arrhythmias & electrophysiology
Abnormal Atrial Potentials Recorded During Sinus Rhythm or Pacing Represent Substrates for Reentrant Atrial Tachycardia
Authors' conclusion
AAPs recorded during sinus rhythm/atrial pacing are associated with areas of slow conduction during reentrant AT.
Study context
- Population
- Patients with reentrant atrial tachycardia; Abnormal atrial potentials (AAPs) (fragmented and split potentials) assessed with the Rhythmia LUMIPOINT algorithm
- Participants
- 104 patients123 reentrant atrial tachycardia (ATs)
- Comparison
- AAPs during sinus rhythm/atrial pacing vs slow-conduction areas of reentrant AT circuits
- Outcome
- Relationship between AAPs and AT circuits
Main finding
As reported in the abstract
Overlap between AAP areas during sinus rhythm/atrial pacing and slow-conduction areas along the reentry circuit during AT
93±13%
Further findings
Cumulative AAP area
P = 0.021
| Outcome | P value |
|---|---|
| AAP area at scar peripheryScar associated with localized-reentrant AT vs Scar not participating in localized-reentrant AT | P < 0.001 |
- AAP area at scar periphery: Scar associated with localized-reentrant AT 3.1 (range 2.4–4.5) cm²
- AAP area at scar periphery: Scar not participating in localized-reentrant AT 1.0 (range 0.7–1.6) cm²
AAP distribution by AT type
- Perimitral ATs: larger AAP areas on lateral wall; roof-dependent ATs: larger AAP areas on roof and posterior wall
- P ≤ 0.018 for all comparisons
Original publication
Abnormal Atrial Potentials Recorded During Sinus Rhythm or Pacing Represent Substrates for Reentrant Atrial Tachycardia. Circ Arrhythm Electrophysiol. Published 20 September 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →