5 | STUDY LIMITATIONS
The main limitations include the small sample size and single-center
experience, which may limit the validation of the reproducibility of
study results to assess the efficacy and complications. No coronary
angiography was performed in our series. Some subclinical coronary
vasospasms were not observed during the procedure. Assessments of
haemolysis and acute renal injury after the procedure were not performed
in our enrolled patients. The other limitation of the present study is
the short duration of follow-up and the small size of redo patients. The
long-term durability of the lesions and recurrence rate after ablation
need to be evaluated specifically in prospective studies.