Limitations
One of the limitations of this study is that follow‐up is only 6 months. This is shorter than previous clinical trials of AF ablation, which have a minimum follow‐up of at least 1 year, although all previous studies have been unblinded.Another limitation is that this study only uses cryoablation and ablation is limited to PV isolation only. This is unlikely to affect the results given that additional ablation including complex fractionated electrogram and linear ablation has not been shown to be superior to PV isolation alone in large randomized controlled trials.