News | September 02, 2010

Radiofrequency Ablation for AF May Cause Esophageal Injury

September 2, 2010 – New research released this week is the first to find both anatomical and procedural considerations that can lead to the creation of esophageal ulcerations (ESUL) after radiofrequency ablation of atrial fibrillation (AF). According to a study published in the September issue of the HeartRhythm Journal, the official journal of the Heart Rhythm Society, patients at high risk for esophageal injury can be identified based on pre-acquired multi-slice computed tomography. The study is the largest to provide serial endoscopy data on the esophagus after radiofrequency ablation.

The study population consisted of 275 patients admitted to the Elisabethinen University Teaching Hospital Linz for pulmonary vein (PV) isolation from September 2007 to June 2009. A standardized ablation approach using a 25-W energy maximum at the posterior left atrial (LA) wall without esophagus visualization, temperature monitoring or intracardiac ultrasound was performed. All patients were screened for evidence of the development of ESUL 24 hours after RFA. ESUL did not develop in any patient who had PV isolation alone.

Study analysis revealed that the greatest anatomical risk factor for the development of ESUL was a small LA-to-esophageal distance. Within the study population, the total risk of ulcers developing was 2.2 percent. Wall legions were classified as ESUL created by radiofrequency ablation by means of localization and endosonographic appearance. Anatomical factors included in the multivariate model were LA-to-esophageal distance, type of AF and additional LA linear lesions. LA-to-esophageal distance was the only independent predictor of the development of ESUL.

“It has been speculated that esophageal ulcerations can lead to atrioesophageal fistula, which is a rare but life-threatening complication of AF,” said lead author Martin Martinek, M.D., Public Hospital Elisabethinen, Academic Teaching Hospital of the University of Innsbruck and Graz in Austria. “Our study aimed to discover risk factors that can lead to injuries of the esophagus due to radiofrequency ablation. In doing so, we may better identify high-risk patients to determine the most appropriate course of action for RFA and its followup.”

For more information: www.heartrhythmjournal.com

Related Content

Boston Scientific to Acquire Cryterion Medical Inc.
News | Ablation Systems | July 13, 2018
Boston Scientific Corp. recently announced a definitive agreement to acquire Cryterion Medical Inc., a privately-held...
Treating AFib With Ablation Reduces Mortality and Stroke
News | Ablation Systems | July 05, 2018
Using catheter-based ablation instead of medications alone reduces the risks of death and stroke in patients with the...
LuxCath Showcases OmniView Light-Guided Ablation Catheter at HRS 2018
News | Ablation Systems | May 22, 2018
LuxCath LLC showcased the next generation of its proprietary OmniView light-guided catheter ablation system at the 2018...
The Kardium Globe combined mapping and ablation catheter. The device has a distal multi-electrode array consisting of 16 ribs with 122 gold-plated electrodes. Ablation can be done with up to 24 electrodes simultaneously.  #HRS2018

The Kardium Globe combined mapping and ablation catheter. The device has a distal multi-electrode array consisting of 16 ribs with 122 gold-plated electrodes. Ablation can be done with up to 24 electrodes simultaneously. 

News | Ablation Systems | May 21, 2018
May 21, 2018 — Complete pulmonary vein isolation (PVI) was achieved in more than 99 percent of patients in a first-in
CardioFocus Announces Successful Live Case Featuring HeartLight X3 System
News | Ablation Systems | May 17, 2018
Medical device manufacturer CardioFocus Inc. announced a successful live case featuring its HeartLight X3 System during...
Imricor MRI-Guided Cardiac Ablation Study Results to Be Presented at HRS 2018
News | Ablation Systems | May 10, 2018
Results from the clinical study to evaluate Imricor’s Vision-MR Ablation Catheter for the treatment of atrial flutter...
Biosense Webster Launches Carto Vizigo Bi-Directional Guidance Sheath
Technology | Ablation Systems | May 08, 2018
Biosense Webster Inc. announced its Carto Vizigo Bi-directional Guiding Sheath is now available in the United States....
Stereotaxis and Acutus Medical Announce Strategic Collaboration
News | Ablation Systems | May 04, 2018
Stereotaxis and Acutus Medical announced a strategic collaboration to integrate the Stereotaxis Niobe Magnetic...
Medtronic Cryoballoon Shows Positive Results for Patients With Persistent Atrial Fibrillation
News | Ablation Systems | April 12, 2018
Medtronic plc announced one-year results from the CRYO4PERSISTENT AF study of ablation with the Arctic Front Advance...
Boston Scientific Acquires Securus Medical Group Inc.
News | Ablation Systems | April 04, 2018
Boston Scientific Corp. announced the acquisition of Securus Medical Group Inc., a privately-held company that has...
Overlay Init