Abstract
a mean procedure time of 122 42 min (range 75-246 min). In 5/50 patients common atrial flutter reoccured within one month after cryoablation. Successful reablation using radiofrequency (RF) energy was performed in all of them. In 30/32 recurrence free patients, who gave final consent to invasive control stimulation, persistency of BCB was verified. In 2 patients recovery of isthmus conduction was detectable. Including the relapses 81.1% of the patients (30/37) showed persistency of BCB. Cryo applications were painless in general. No procedural complications were observed. Conclusions: Cryoablation of the CTI using the large tip catheter is feasible and safe in the treatment of common atrial flutter. Acute and short-term success rates are comparable to those reported for RF ablation. Besides short term clinical success the persistency of BCB one month after cryoablation proves efficacy of cryoablation technique.
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