**4. Conclusions**

Cryoablation is a feasible technique for SVT procedures with a high acute success rate, but also higher rates of recurrence compared to RF ablation; it is suggested to use it in targets where the risks of the procedure are higher than the benefits if using RF as an energy source, such as in right septal accessory pathways.

Cryoablation with a balloon catheter to treat atrial fibrillation by pulmonary vein isolation is non-inferior to RF procedure and, to date has a unique trial of superiority to antiarrhythmic drugs as first-line therapy.
