Key result
Successful slow pathway ablation from the right posterior paraseptum lesion was achieved using an anatomical approach in a patient with an unroofed type coronary sinus.
Case Report (n=1)
Demonstrates the feasibility of an anatomical approach for slow pathway ablation in a patient with AVNRT and an unroofed coronary sinus.
Anatomical ablation may be feasible in unroofed coronary sinus AVNRT; hypothesis-generating for this rare variant.
We report a case of atrioventricular nodal reentrant tachycardia coexistent with a coronary sinus (CS) anomaly. During a standard electrophysiological study, the CS could not be cannulated despite several attempts. A persistent left superior vena cava angiogram through the left brachial vein confirmed an unroofed type CS. Successful slow pathway ablation from the right posterior paraseptum lesion was achieved using an anatomical approach.
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Kawata et al. (2012) conducted a case report in Atrioventricular nodal reentrant tachycardia with unroofed type coronary sinus (n=1). Slow pathway ablation using an anatomical approach was evaluated on Procedural success. Successful slow pathway ablation from the right posterior paraseptum lesion was achieved using an anatomical approach in a patient with an unroofed type coronary sinus.
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