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- Title
Use of a QDOT MICRO catheter to identify a premature ventricular contraction origin in the right ventricular anterior papillary muscle in a repaired truncus arteriosus.
- Authors
Itoh, Taihei; Ishida, Yuji; Kimura, Masaomi; Tomita, Hirofumi
- Abstract
The ventricular papillary muscles (VPMs) can be a source of premature ventricular contractions (PVCs). Catheter ablation of VPM PVCs is challenging because of the anatomical complexity, such as the apical structures in proximity to the ventricular walls. The QDOT MICRO catheter (Biosense Webster, Diamond Bar, CA, USA) has microelectrodes embedded along the circumference of its distal tip and can provide information on which side of its tip myocardial activation is earlier. This repaired truncus arteriosus case demonstrates the usefulness of the microelectrode recording in identifying a PVC origin in a right VPM apex close to the right ventricular anterior wall.
- Subjects
ARRHYTHMIA treatment; ELECTRODES; RIGHT heart ventricle; PERSISTENT truncus arteriosus; CATHETER ablation; ARRHYTHMIA; VASCULAR catheters
- Publication
Pacing & Clinical Electrophysiology, 2023, Vol 46, Issue 11, p1337
- ISSN
0147-8389
- Publication type
Article
- DOI
10.1111/pace.14750