Arrhythmias & electrophysiology
Identification of 2 Distinct Boundaries Distinguishes Critical From Noncritical Isthmuses in Ablating Atypical Atrial Flutter
Authors' conclusion
Activation mapping of atypical atrial flutter allows consistent identification of 2 critical boundaries. Successful ablation connecting the 2 critical boundaries reliably results in termination of atypical atrial flutter.
Study context
- Population
- Patients undergoing ablation of atypical atrial flutter (28 atypical right atrial, 100 left atrial)128 cases
- Participants
- 121 patients
- Outcome
- Tachycardia termination with ablation across a CI connecting the 2 critical boundaries
Main finding
As reported in the abstract
Tachycardia termination by ablation across CI
- Tachycardia terminated
- 123 of 128 cases (96.1%)
- 2 distinct critical boundaries identified
- In all cases
Observational data: associations, not effects.
Original publication
Identification of 2 Distinct Boundaries Distinguishes Critical From Noncritical Isthmuses in Ablating Atypical Atrial Flutter. JACC Clin Electrophysiol. Published 22 November 2023. doi:10.
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