Radiofrequency ablation of AV nodal reentrant tachycardia can be successfully performed in patients with tricuspid atresia by targeting the left side of the septum.
May enable AVNRT ablation in tricuspid atresia; leaves open generalizability from this single case.
A 31-year-old woman with tricuspid atresia and a palliative Waterston shunt presented with intractable poorly tolerated supraventricular tachycardia. Electrophysiologic evaluation was consistent with AV nodal reentrant tachycardia. The fast pathway region was mapped electroanatomically during tachycardia and with constant rate ventricular pacing. Successful radiofrequency ablation was achieved by placement of lesions in an area adjacent and inferior to the His-bundle electrogram on the left side of the septum.
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Khairy et al. (2004) studied this question.
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