1
|
Teres C, Soto-Iglesias D, Penela D, Falasconi G, Viveros D, Meca-Santamaria J, Bellido A, Alderete J, Chauca A, Ordoñez A, Martí-Almor J, Scherer C, Panaro A, Carballo J, Cámara Ó, Ortiz-Pérez JT, Berruezo A. Relationship between the posterior atrial wall and the esophagus: esophageal position and temperature measurement during atrial fibrillation ablation (AWESOME-AF). A randomized controlled trial. J Interv Card Electrophysiol 2022; 65:651-661. [PMID: 35861901 DOI: 10.1007/s10840-022-01302-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/07/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Pulmonary vein isolation (PVI) implies unavoidable ablation lesions to the left atrial posterior wall, which is closely related to the esophagus, leading to several potential complications. This study evaluates the usefulness of the esophageal fingerprint in avoiding temperature rises during paroxysmal atrial fibrillation (PAF) ablation. METHODS Isodistance maps of the atrio-esophageal relationship (esophageal fingerprint) were derived from the preprocedural computerized tomography. Patients were randomized (1:1) into two groups: (1) PRINT group, the PVI line was modified according to the esophageal fingerprint; (2) CONTROL group, standard PVI with operator blinded to the fingerprint. The primary endpoint was temperature rise detected by intraluminal esophageal temperature probe monitoring. Ablation settings were as specified on the Ablate BY-LAW study protocol. RESULTS Sixty consecutive patients referred for paroxysmal AF ablation were randomized (42 (70%) men, mean age 60 ± 11 years). Temperature rise (> 39.1 °C) occurred in 5 (16%) patients in the PRINT group vs. 17 (56%) in the CONTROL group (p < 0.01). Three AF recurrences were documented at a mean follow-up of 12 ± 3 months (one (3%) in the PRINT group and 2 (6.6%) in the CONTROL group, p = 0.4). CONCLUSION The esophageal fingerprint allows for a reliable identification of the esophageal position and its use for PVI line deployment results in less frequent esophageal temperature rises when compared to the standard approach. Further studies are needed to evaluate the impact of PVI line modification to avoid esophageal heating on long-term outcomes. The development of new imaging-derived tools could ultimately improve patient safety (NCT04394923).
Collapse
Affiliation(s)
- Cheryl Teres
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain.,Lausanne University Hospital, Lausanne, Switzerland
| | - David Soto-Iglesias
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Diego Penela
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Giulio Falasconi
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Daniel Viveros
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | | | - Aldo Bellido
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Jose Alderete
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Alfredo Chauca
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Augusto Ordoñez
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Julio Martí-Almor
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Claudia Scherer
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Alejandro Panaro
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Julio Carballo
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain
| | - Óscar Cámara
- Department of Information and Communication Technologies, BCN-MedTech, Universitat Pompeu Fabra, PhySense group, Barcelona, Spain
| | | | - Antonio Berruezo
- Heart Institute, Teknon Medical Center, C/Vilana, 12; 08022, Barcelona, Spain.
| |
Collapse
|