Cryoballoon ablation of peri-mitral atrial flutter refractory to radiofrequency ablation: a case report.

ABSTRACT:

Background

The radiofrequency catheter ablation of peri-mitral atrial flutter is occasionally difficult, mostly due to epicardial or intramural conduction on the mitral isthmus (MI). However, cryoballoon ablation (CBA) of peri-mitral atrial flutter refractory to radiofrequency ablation has not been reported.

Case summary

We report a case of a 66-year-old male patient who experienced a recurrence of atypical atrial flutter and underwent the sixth catheter ablation. The activation and entrainment maps showed that this atypical atrial flutter (AFL) was peri-mitral AFL via pathways other than endocardial conduction in the MI. Previous radiofrequency catheter ablation attempts on the MI line, including endocardial, coronary sinus, and epicardial ablations, failed to achieve a bid

SUBMITTER: Takahashi M 

PROVIDER: S-EPMC10794817 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature