Actively Recruiting
Localization of Anatomical Structures Involved in Nodal Tachycardias by High Density Mapping Feasibility Study
Led by University Hospital, Toulouse · Updated on 2026-06-01
20
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
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.
CONDITIONS
Brief Title
Localization of Anatomical Structures Involved in Nodal Tachycardias by High Density Mapping.
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adults 18 years or older
- Group 1: Patients without heart disease presenting with reciprocal tachycardia by intra-nodal reentry
- Group 2: Control subjects without nodal tachycardia or heart disease admitted for ablation of atrial fibrillation or ventricular extrasystoles using a 3D mapping system
You will not qualify if you...
- Presence of underlying structural heart disease or history of atrial ablation or atrial tachycardia
- Minor or protected patient
- Patient under guardianship, curatorship, or safeguard of justice
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - Single procedure
Participants undergo high-resolution electro-anatomical mapping using the RHYTHMIA HDx system to obtain activation and voltage maps of the Koch triangle and surrounding areas.
1 visit (in-person)
Trial Site Locations
Total: 1 location
1
CHU de Toulouse
Toulouse, France
Actively Recruiting
Research Team
P
Philippe MAURY, MD
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
PARALLEL
Primary Purpose
OTHER
Number of Arms
2
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