Successful catheter ablation of atrioventricular nodal reentrant tachycardia associated with criss-cross heart after Fontan surgery using verapamil to prevent haemodynamic collapse
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A 6-year-old male with a concordant criss-cross heart after Fontan surgery was referred for fast-slow atrioventricular nodal reentrant tachycardia. Verapamil was useful in preventing haemodynamic collapse in this case, requiring mapping during tachycardia. ... ...
