Does cryoablation improve safety (avoidance of AVN block) compared to RF ablation in patients with AVNRT?
Cryoablation for AVNRT has a higher late-recurrence rate than RF ablation but avoids permanent AVN block, making it a preferable option for children and young adults.
Cryoablation is a safe and effective treatment for AVNRT. Although late-recurrence is more common with cryoablation than with RF ablation, avoidance of permanent AVN block makes it an attractive option in patients where the avoidance of AV block assumes higher priority (such as children and young adults).
Hanninen et al. (Mon,) studied this question.