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ECG Blog #409 — Every-Other-Beat.

Ken Grauer, MD

Physiologically — the most commonly observed pattern of AFlutter, known as " Typical " AFlutter — produces 2:1 negative deflections seen in the inferior leads ( as seen in Figure-3 ) — as a result of CCW ( C ounter C lock W ise ) rotation of a fixed reentrant circuit around the tricuspid valve annulus and through the cavo-tricuspid isthmus.

Blog 176
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Abstract 4142266: Long-term Outcomes and Predictors of Recurrence in Atrial Arrhythmia Ablations Post-Fontan Procedure: A Retrospective Analysis

Circulation

Introduction:Supraventricular tachycardia (SVT) is common and poorly tolerated in patients who have undergone Fontan procedure. Atrial Tachycardia (70%) and Typical Atrial Flutter (65%) were the most common SVTs ablated. Tricuspid atresia and elevated BNP levels were associated with increased risk of SVT recurrence (Table).Conclusion:Recurrence