Background: High-grade dysplasia (HGD) and intramucosal carcinoma (IMC) in Barrett's esophagus (BE) are now well-established indications for endoscopic resection (ER). Radiofrequency ablation (RFA) can be combined with ER in case of flat or long-segment BE ablation. We report here our experience of complementary RFA after widespread ER of neoplastic BE in daily practice.
Method: We retrospectively reviewed data of 89 patients, treated between 2006 and 2013 by ER alone (group 1) or by ER combined with RFA (group 2).
Results: Fifty-five patients in group 1 (7F/48M, mean age 68 years) underwent widespread ER with eradication of residual non-dysplastic BE. Complete eradication of HGD/IMC and intestinal metaplasia (IM) was achieved in 32/32 (100%) and 48/55 (87.3%) patients, respectively. Thirty-four patients in group 2 (3F/31M, mean age 67 years) had a multimodal treatment strategy, with widespread ER followed by RFA. Mean Prague classification of BE in this group was significantly longer (C4.4M6.6 vs. C2.7M4.5, P<0.001). Complete eradication of HGD/IMC and non-dysplastic BE was confirmed in 26/27 (96.3%) and 20/34 (58.8%) patients, respectively. There was no significant difference between groups concerning adverse events (16.4% vs. 23.5%, P=0.58) or recurrence rate of HGD/IMC (9.1% vs. 14.7%, P=0.42). The mismatch rate between preoperative and final histological diagnosis was high in both groups, at 45.5% and 26.5%.
Conclusions: A combination of ER and RFA can treat significantly longer neoplastic BE than ER alone, with the same efficiency and safety. Widespread ER, in contrast, is the only method of obtaining a reliable histological diagnosis.
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http://dx.doi.org/10.20524/aog.2021.0685 | DOI Listing |
JACC Clin Electrophysiol
January 2025
Section of Cardiac Pacing and Electrophysiology, Division of Cardiology, Cleveland Clinic, Cleveland, Ohio, USA.
Background: In patients with mechanical aortic and mitral valves requiring catheter ablation of ventricular tachycardia (VT), a technique for access from the right atrium (RA) to the left ventricle (LV) via puncture of the inferoseptal process of the LV was previously described in a single-center series.
Objectives: This study sought to report the multicenter experience of VT ablation using this novel LV access approach.
Methods: We assembled a multicenter registry of patients with double mechanical valves who underwent VT ablation with RA-to-LV access.
J Arrhythm
February 2025
Section of Arrhythmia, Division of Cardiovascular Medicine, Department of Internal Medicine Kobe University Graduate School of Medicine Kobe Japan.
J Arrhythm
February 2025
Department of Cardiology Saitama Medical University, International Medical Center Hidaka Japan.
Background: A novel contact force (CF) sensing catheter with a mesh-shaped irrigation tip (TactiFlexTM SE, Abbott), is expected to provide safe and effective radiofrequency ablation. Our previous study revealed that the TactiFlex catheter needs a higher power for pulmonary vein isolation (PVI) due to the long tip length. This study aimed to examine the feasibility and safety of a 50 W ablation with the TactiFlex for PVI of atrial fibrillation (AF).
View Article and Find Full Text PDFJ Arrhythm
February 2025
Department of Cardiology ULSSM Lisbon Portugal.
Background: Integration of preprocedural imaging techniques in ventricular tachycardia (VT) ablation may improve the identification of arrhythmogenic substrates, particularly relevant for patients with nonischemic cardiomyopathy (NICM) with sub-optimal outcomes. We assessed the impact of advanced preprocedural imaging on the safety and long-term efficacy of radiofrequency catheter ablation (RCA) for VT, comparing patients with NICM and ischemic cardiomyopathy (ICM).
Methods: In this prospective, single-center study, consecutive patients referred for scar-related VT ablation underwent multidetector computed tomography (MDCT) and late gadolinium enhancement cardiac magnetic resonance (LGE-CMR).
Background: Few clinical studies of atrial fibrillation (AF) have focused on Asian patients; data are lacking on current mapping and ablation strategies in the Asia Pacific region (APAC).
Objective: The HD Mapping Observational Study (NCT04022954) was designed to characterize electroanatomic mapping (EAM) with market-released high-density mapping (HDM) catheters in subjects with AF in APAC.
Methods: Subjects undergoing HDM and indicated for radiofrequency ablation (RFA) to treat AF were prospectively enrolled in APAC.
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