DISCUSSION
GH appeared in 18.8% of patients after CBA of the LA roof with PVI,
especially in patients with a lower LA roof height. In most cases, a
drop in LET below 15°C occurred during PVI, especially of the LIPV;
however, the percentage of patients in whom LET reached 15°C during LA
roof line ablation was higher in those with GH than in those without.
Moreover, many GH-related symptoms emerged 1 week after ablation rather
than immediately afterward.