Characteristics of cavotricuspid isthmus-dependent atrial flutter after left atrial ablation of atrial fibrillation

Patients who have previously undergone ablation of atrial fibrillation may experience cavotricuspid isthmus (CTI)-dependent atrial flutter during follow-up. The effects of left atrial (LA) ablation on the characteristics of CTI-dependent flutter have not been described. Fifteen patients underwent ab...

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Bibliographic Details
Published in:Circulation (New York, N.Y.) N.Y.), 2006-02, Vol.113 (5), p.609-615
Main Authors: CHUGH, Aman, LATCHAMSETTY, Rakesh, PELOSI, Frank, MORADY, Fred, ORAL, Hakan, ELMOUCHI, Darryl, TSCHOPP, David, REICH, Scott, IGIC, Petar, LEMERAND, Tammy, GOOD, Eric, BOGUN, Frank
Format: Article
Language:English
Subjects:
Atrial Fibrillation - complications
Atrial Fibrillation - therapy
Atrial Flutter - etiology
Atrial Flutter - physiopathology
Biological and medical sciences
Blood and lymphatic vessels
Blood vessels and receptors
Body Surface Potential Mapping
Cardiology. Vascular system
Catheter Ablation - adverse effects
Diseases of the aorta
Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous
Electrocardiography
Female
Fundamental and applied biological sciences. Psychology
Heart Atria - physiopathology
Heart Conduction System - physiopathology
Humans
Male
Medical sciences
Middle Aged
Tricuspid Valve - physiopathology
Vertebrates: cardiovascular system
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Summary:Patients who have previously undergone ablation of atrial fibrillation may experience cavotricuspid isthmus (CTI)-dependent atrial flutter during follow-up. The effects of left atrial (LA) ablation on the characteristics of CTI-dependent flutter have not been described. Fifteen patients underwent ablation of CTI-dependent flutter late after LA ablation of AF. The ECG, biatrial activation patterns, and LA voltage maps during flutter were analyzed. Thirty age- and gender-matched patients who underwent ablation of CTI-dependent flutter without prior LA ablation served as control subjects. Among the patients with prior LA ablation, mapping revealed counterclockwise activation around the tricuspid annulus in 12 of 15 patients (80%) and clockwise activation in 3 of 15 patients (20%). The flutter waves in the inferior leads were upright in 9 of the 15 patients (60%) with prior LA ablation and in none of the control subjects (P
ISSN:0009-7322
1524-4539
DOI:10.1161/CIRCULATIONAHA.105.580936