Key result
Bipolar RF and cryoablation Cox maze III linked to ~86% AF cure at one year.
Why the study?
The cut and sew Cox's maze III procedure is time-consuming, prompting the use of various energy sources for ablation to replace the technique.
Observational
Offers potentially simpler alternative for surgical AF ablation; leaves open long-term efficacy versus other energies in randomized trials.
The cut and sew Cox's maze III procedure is time-consuming. Therefore, various energy sources have been used for ablation, to replace the cut and sew technique. We have used the bipolar radiofrequency output of a standard electrosurgical generator with re-usable forceps for replicating the Cox's maze III procedure from August 1996. In addition, re-usable nitrous oxide based cryoprobe has been used at the atrioventricular valve annuli and on the coronary sinus. The 85.7% cure rate at one year compares with that for surgical ablation of atrial fibrillation using alternative energy sources.
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A 2010 study conducted an observational in Atrial fibrillation. Bipolar radiofrequency and cryoablation was evaluated on Cure rate at one year. Intraoperative ablation replicating the Cox's maze III procedure using bipolar radiofrequency and cryoablation achieved an 85.7% cure rate for atrial fibrillation at one year.
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