Osório Thiago Guimarães, Iacopino Saverio, Coutiño Hugo-Enrique, Ströker Erwin, Sieira Juan, Salghetti Francesca, Varnavas Varnavas, Terasawa Muryo, Paparella Gaetano, Capulzini Lucio, Maj Riccardo, De Greef Yves, Brugada Pedro, de Asmundis Carlo, Chierchia Gian-Battista
Heart Rhythm Management Center, Postgraduate program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, Laarbeeklaan 101, Brussels, Belgium.
Cardiac Electrophysiology Unit, Villa Maria Cecilia Hospital GVM, Cotignola, Italy.
J Interv Card Electrophysiol. 2019 Aug;55(2):191-196. doi: 10.1007/s10840-019-00523-0. Epub 2019 Feb 7.
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.
Thirty patients with symptomatic persistent AF (PersAF), having undergone PVI + LAPW cryoballoon ablation with LET monitoring.
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.
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.
本研究旨在阐明在一组接受第二代冷冻球囊（CB-A）进行肺静脉隔离（PVI）及额外通过CB-A进行左心房后壁（LAPW）消融的患者中，食管腔内温度（LET）的变化情况。
30例有症状的持续性房颤（PersAF）患者接受了PVI + LAPW冷冻球囊消融并进行LET监测。
5例患者（16.6%）因LET低于15°C而中断操作，其中2例在左肺静脉，3例在左心房后壁。这5例患者在消融术后第二天接受了胃镜检查。所有个体均未出现食管热损伤（ETL）。
对LET的评估可能是一种辅助工具，通过在温度低于15°C时停止冷冻操作，有助于在使用CB-A进行LAPW消融期间预防食管损伤。
