Cavotricuspid isthmus | definition of cavotricuspid isthmus by Medical dictionary
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The electrically conductive tissue that separates the inferior vena cava from the tricuspid valve. It is the part of the atrium in which the re-entrant electrical activity of atrial flutter circulates.
References in periodicals archive
Ablation of atrial fibrillation at the time of cavotricuspid isthmus
ablation in patients with atrial flutter without documented atrial fibrillation derives a better long-term benefit.