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Uncommon Atrial Flutter: Characteristics, Mechanisms, and Results of Ablative Therapy
Author(s) -
GOMES J. ANTHONY,
SANTONIRUGIU FRANCESCO,
MEHTA DAVENDRA,
LANCAN NOELLE M.,
MARX STEVEN O.,
NAYAK HEMAL
Publication year - 1998
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1998.tb01121.x
Subject(s) - medicine , atrial flutter , flutter , atrial fibrillation , cardiology , catheter ablation , ablation , radiofrequency ablation , p wave , engineering , aerodynamics , aerospace engineering
Thirty‐seven patients with atrial flutter were studied with catheter mapping and radiofrequency ablation. Uncommon atrial flutter occurred in 20 out of 37 (54%) patients. Atrial endocardial mapping showed two types of uncommon atrial flutter. In 15 patients (group I) it was characterized by a single clockwise circuit whereas in 5 patients (Group II) it was characterized by the presence of more than one circuit and/or localized atrial fibrillation. RFA ablation was acutely successful in 14 out of 15 patients (93%) in Group I and in 2 oat of 5 (40%) patients in Group II. On long‐term follow‐up a significantly larger number of patients in Group I versus Group II (86% vs 20%) remained free of atrial flutter recurrence. We conclude that uncommon atrial flutter is a heterogeneous entity involving one or more reentrant circuits. Uncommon atrial flutter with multiple circuits may not be suitable for RFA.