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Cavotricuspid Isthmus: Anatomy, Electrophysiology, and Long‐Term Outcome of Radiofrequency Ablation
Author(s) -
Tai ChingTai,
Chen ShinAnn
Publication year - 2009
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.1540-8159.2009.02555.x
Subject(s) - medicine , atrial flutter , ablation , atrial fibrillation , radiofrequency ablation , cardiology , catheter ablation , radiofrequency catheter ablation , reentry , electrophysiology , cardiac electrophysiology , electrophysiology study
The cavotricuspid isthmus (CTI) had a complex architecture with an anisotropic conduction property. An incremental pacing from the low right atrial isthmus produced a conduction delay and block, and initiated atrial flutter. Radiofrequency catheter ablation of the CTI was very effective in eliminating the typical atrial flutter. However, atrial fibrillation often occurred after ablation of the isthmus and needs further treatment.