ABSTRACT
We present a case of a 45-year-old male with symptomatic supraventricular tachycardia. Electrophysiology study and 3-dimensional (3D) electroanatomic mapping showed a focal atrial tachycardia originating from a large left atrial diverticulum. Due to the unusual anatomy, 3D printing models were used to aid successful catheter ablation of the atrial tachycardia.
Subject(s)
Catheter Ablation , Diverticulum , Electrophysiologic Techniques, Cardiac , Heart Atria , Printing, Three-Dimensional , Tachycardia, Supraventricular , Humans , Male , Middle Aged , Tachycardia, Supraventricular/surgery , Tachycardia, Supraventricular/physiopathology , Tachycardia, Supraventricular/diagnosis , Tachycardia, Supraventricular/etiology , Diverticulum/surgery , Diverticulum/complications , Diverticulum/physiopathology , Diverticulum/diagnostic imaging , Heart Atria/surgery , Heart Atria/physiopathology , Heart Atria/diagnostic imaging , Treatment Outcome , Models, Cardiovascular , Patient-Specific Modeling , Heart Rate , Action PotentialsABSTRACT
The ligament of Marshall is an embryological remnant of the left superior vena cava that contains neural tissues shown to be an arrhythmogenic source of atrial fibrillation (AF). Vein of Marshall (VOM) ethanol ablation is an ablation technique that can potentially treat AF by targeting the ligament of Marshall. We report a case of a patient who developed a pro-arrhythmic effect related to VOM ethanol ablation, which manifested as a perimitral flutter.