Variation in the frozen lesion size according to the non-occluded application duration and technique for cryoballoon ablation.

ABSTRACT:

Objective

The frozen lesion formation created by cryoballoon ablation, especially with non-occluded applications, has not been fully evaluated. This study aimed to validate the lesion size under different cryoballoon ablation settings: application duration, push-up technique, and laminar flow.

Methods

The frozen lesion size was evaluated immediately after ending the freezing with three different application durations (120, 150, and 180 seconds) in porcine hearts (N = 24). During the application, the push-up technique was applied at 10, 20, and 30 seconds after starting the freezing with or without laminar flow.

Results

The lesion size was significantly correlated with the nadir balloon temperature (P<0.001). The lesion volume became significantly larger after 150 seco

SUBMITTER: Kawaji T 

PROVIDER: S-EPMC10810503 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature