Catheter Ablation -> Atrial Fibrillation & Atrial Flutter: -> Clinical Trials / Outcomes D-PO03 - Poster Session III (ID 48) Poster

D-PO03-141 - Successful Esophageal Deviation With Vacuum Suction And Mechanical Deviation (ID 338)


Background: Esophagus (Eso) injury is an important complication of atrial fibrillation (AF) ablation
Objective: To assess safety and feasibility of a novel Eso retractor, ESo-lution, to deviate the Eso during AF ablation.
Methods: The device deviates the Eso using vacuum suction and mechanical deflection. It is 11.6mm diameter and inserted through the mouth. The soft outer extrusion is in contact with the Eso and has small holes distally. The inner component consists of a pivot joint and deflecting arm (DA). The small holes circumscribe the DA. With the vacuum force, suction is applied to the small holes and pulls in the Eso in a circumferential manner, thus eliminating a trailing edge. Once gathered, the DA allows for bidirectional Eso deviation of varied degrees.
Results: The device was used in 7 pts (Mean age: 62; EF: 61%; GERD 3) undergoing cryo-ablation. Mean coldest balloon temperature per pt was -480C. Time to insert the device was <3 min. Esophagram was completed. Number of deviations was 4.4 per pt. Mean right and left deviation distance was 31.9 and 28.2mm (range 20-40mm) without a trailing edge. Mean time the device was in the Eso and that suction was applied was 66 and 24min. Pts ate food and were discharged day of procedure. One pt had minor bruising to the pharynx. Endoscopy at 4 days post ablation showed no ablation or device - related Eso injury. In image the Eso retractor is marked by £ and the cryoballoon by π
Conclusion: Through the use of vacuum suction and mechanical force, ESo-lution provides a reliable and safe technique to deviate the Eso bilaterally a mean distance of 30mm and without a trailing edge.