ArticleHeart rhythm O22025
Localizing the origin of focal atrial tachycardia by combining clinical characteristics with P-wave morphology.
Article in Heart rhythm O2, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- [P-wave pattern].Herzschrittmachertherapie & Elektrophysiologie · 2026Article
- Management of patients with atrial tachycardia: a clinical consensus statement of the European Heart Rhythm Association (EHRA) of the ESC, endorsed by the Heart Rhythm Society (HRS), the Asia Pacific Heart Rhythm Society (APHRS), the Latin American Heart Rhythm Society (LAHRS), and the Association for European Paediatric and Congenital Cardiology (AEPC).Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Analyzing the P-wave morphology of an electrocardiogram (ECG) may determine the origin of focal atrial tachycardia (AT), thereby providing information for mapping and ablation. Objective: We sought to analyze the ECG and clinical characteristics of focal ATs with different origins and to improve the 2021 Kistler algorithm. Methods: We included 226 focal AT patients treated with radiofrequency catheter ablation. The origin of AT was determined by intracardiac electrophysiological examination. The diagnostic value of the 2021 Kistler algorithm was evaluated. The ECG and clinical characteristics of frequently misidentified cases were compared with those of patients with AT originating from adjacent locations. The algorithm was then modified and re-evaluated. Results: The sensitivity of the Kistler algorithm for the diagnosis of left atrial appendage (LAA), left pulmonary vein (LPV), and right atrial appendage origins was 62.5%, 61.1%, and 52.9%, respectively. An incessant attack was a common feature of atrial appendage origins ( Conclusion: The presence of atrial fibrillation and the incessancy of the attack can aid in distinguishing focal ATs originating from pulmonary veins and atrial appendages from those originating from adjacent locations.
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