High Density Mapping to Locate AV Node and Slow Pathways in Nodal Tachycardias A Study Comparing Patients With and Without Nodal Tachycardia

What this Trial Is About

Researchers are evaluating the ability of high resolution mapping systems to precisely locate the atrioventricular AV node and nearby slow-conducting pathways in patients with and without atrioventricular nodal reentry tachycardia AVNRT, a type of supraventricular tachycardia. This prospective, single-center study aims to compare mapping results to conventional ablation areas using detailed electrical mapping techniques. The study involves two groups patients with AVNRT undergoing mapping and ablation, and control patients without AVNRT but requiring similar mapping for other heart conditions. High-resolution electro-anatomical mapping using the RHYTHMIA HDx 3D system and the multipolar ORION catheter will be performed to create detailed activation and voltage maps of the Koch triangle and surrounding areas. Additional offline data analysis will include filter adjustments and conduction velocity assessments. Participants will undergo mapping procedures and ablation guided by fluoroscopy as needed. Researchers will measure the precise location of the AV node within seven months. Monitoring includes detailed electrical mapping data collection and comparison with ablation sites. The study lasts until December 2026, allowing for thorough data analysis and outcome assessment.

Localization of Anatomical Structures Involved in Nodal Tachycardias by High Density Mapping.