Related Experiment Video
Updated: Jun 8, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
Anterior Mitral Line Ablation-Induced Complete Heart Block: A Cautionary Case Study
Gabriel Velez Oquendo1, Nivedha Balaji1, Joon Ahn2
1Department of Internal Medicine, Northeast Georgia Medical Center, Gainesville, GA, USA.
Atrial flutter ablation carries risks. Precise catheter placement during anterior mitral line ablation is crucial to prevent atrioventricular block, a serious complication.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Case Reports
Background:
- Atrial flutter presents significant health risks, often managed with medications or ablation.
- Ablation procedures for atrial flutter, while effective, carry inherent risks, including heart block.
Observation:
- A 73-year-old woman underwent ablation for atypical atrial flutter.
- During anterior mitral line creation, transient complete atrioventricular block occurred.
- The patient later developed persistent complete heart block requiring a permanent pacemaker.
Findings:
- Catheter proximity to the His bundle during ablation was noted.
- Successful bi-directional mitral isthmus block was achieved after repositioning the ablation line.
- Delayed complete heart block developed, necessitating pacemaker implantation.
Implications:
- This case highlights the critical need for meticulous catheter positioning during anterior mitral line ablation.
- Performing ablations more anteriorly, away from the septum, may reduce the risk of atrioventricular block.
- Careful technique is essential to mitigate serious complications in atrial flutter ablation.
More Related Videos
08:42Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
Published on: February 11, 2022
06:57Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
Published on: January 31, 2019
Related Concept Videos
Mitral Stenosis I: Introduction
Mitral Regurgitation III: Medical Management
Mitral Regurgitation II: Clinical features and Diagnostic Tests
Mitral Regurgitation I: Introduction
Mitral Valve Prolapse II: Assessment and Management