{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["6(8)"],"submitter":["Yamashita S"],"pubmed_abstract":["<h4>Background</h4>A new technology, the POLAR cryoballoon system, was designed to enhance maneuvering and stabilizing catheter positions with a softer balloon and more deflectable sheath. These novel characteristics may help achieve successful pulmonary vein (PV) isolation in difficult cases when conventional balloons were used.<h4>Objective</h4>This study aimed to investigate the differences in the lesion profiles, touch-up radiofrequency ablation (RFA) rate, and anatomical predictors of acute PV isolation between the POLAR and Arctic Front Advance Pro (AFA-Pro).<h4>Methods</h4>This retrospective study included 338 consecutive patients who underwent a first cryoballoon ablation for paroxysmal atrial fibrillation at Keio University Hospital from April 2019 to September 2023. Using propens"],"journal":["Heart rhythm O2"],"pagination":["1121-1129"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12411963"],"repository":["biostudies-literature"],"pubmed_title":["Differences between 2 cryoballoon systems in achieving successful pulmonary vein isolation in patients with challenging anatomies."],"pmcid":["PMC12411963"],"pubmed_authors":["Nishiyama T","Yamashita S","Yano S","Himeno Y","Kimura T","Ieda M","Takatsuki S","Yamaoka K","Ibe S","Katsumata Y"],"additional_accession":[]},"is_claimable":false,"name":"Differences between 2 cryoballoon systems in achieving successful pulmonary vein isolation in patients with challenging anatomies.","description":"<h4>Background</h4>A new technology, the POLAR cryoballoon system, was designed to enhance maneuvering and stabilizing catheter positions with a softer balloon and more deflectable sheath. These novel characteristics may help achieve successful pulmonary vein (PV) isolation in difficult cases when conventional balloons were used.<h4>Objective</h4>This study aimed to investigate the differences in the lesion profiles, touch-up radiofrequency ablation (RFA) rate, and anatomical predictors of acute PV isolation between the POLAR and Arctic Front Advance Pro (AFA-Pro).<h4>Methods</h4>This retrospective study included 338 consecutive patients who underwent a first cryoballoon ablation for paroxysmal atrial fibrillation at Keio University Hospital from April 2019 to September 2023. Using propens","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Aug","modification":"2026-06-03T07:00:58.886Z","creation":"2026-05-29T03:05:57.044Z"},"accession":"S-EPMC12411963","cross_references":{"pubmed":["40917185"],"doi":["10.1016/j.hroo.2025.05.027"]}}