PURPOSE: The purpose of this study was to clarify the behavior of the luminal esophageal temperature (LET) in a cohort of patients undergoing second-generation cryoballoon (CB-A) for pulmonary vein isolation (PVI) and additional left atrium posterior wall (LAPW) ablation by means of CB-A.

METHODS: Thirty patients with symptomatic persistent AF (PersAF), having undergone PVI + LAPW cryoballoon ablation with LET monitoring.

RESULTS: Interruption of the application due to a LET below 15 °C occurred in 5 patients (16.6%), 2 at the LIPV and 3 in the LAPW. The 5 patients underwent gastroscopy the day after ablation. In all individuals, esophageal thermal lesion (ETL) was absent.

CONCLUSION: The evaluation of LET might be an additional tool in helping to prevent damage to the esophagus during the LAPW ablation with the CB-A by stopping the freeze application when temperature reaches values of < 15 °C.

Original languageEnglish
JournalJournal of Interventional Cardiac Electrophysiology
Publication statusE-pub ahead of print - 7 Feb 2019

    Research areas

  • Atrial fibrillation, Esophageal thermal lesion, Left atrium posterior wall, Luminal esophageal temperature, Pulmonary vein isolation

ID: 44253330