4.4 Study limitations
In our study population, the prevalence of successful CST cases was
about 3% and the CST ablation technique was effective in 16 patients,
which are small and may not have been adequate to derive any accurate
factors for predicting a successful CST ablation. Additionally, whether
the two factors derived could be useful predictors in the CB ablation
setting was not evaluated owing to the retrospective non-randomized
design of this study. Hence, these two factors should be evaluated in a
prospective, randomized, multicenter study in the future.