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Long-term risk of right coronary artery injury after catheter ablation of cavotricuspid isthmus–dependent flutter

HeartRhythm

Radiofrequency ablation (RFA) of cavotricuspid isthmus (CTI)dependent atrial flutter requires ablation of the tricuspid annulus overlying the right coronary artery (RCA). Although it is considered safe, reports of acute and subacute RCA injury in human and animal studies raise the possibility of late RCA stenosis.

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Atrial dilatation in Atrial fibrillation : A query with multiple twists!

Dr. S. Venkatesan MD

The atrial muscle can be entirely normal, or the interstitium can be infiltrated with lipids, fibroblasts, amyloid, etc. We know atrial flutters can be confined to one atrium. Pierre Jaïs Circulation 2000 ) When such flutters transform into fibrillation, how does the spillover of signals occur to the contralateral atrium?