Prospective Evaluation of CT Guided Ablation of Cardiac Ganglionated Plexi

University of Pennsylvania

Status: Completed

Conditions: Atrial Fibrillation

Treatments: Device: Ganglionated Plexi mapping and ablation using Natus Cortical Stimulator and standard ablation catheters

Study type: Observational

Funder types: Other

Identifiers

NCT04642976

844182

Details and patient eligibility

About

Despite progress made in treating atrial fibrillation with catheter ablation, outcomes remain suboptimal with pulmonary vein isolation alone. Ablation of ganglionated plexi (GP) has been shown to be beneficial in patients with atrial fibrillation although optimal strategies of localization of these regions have yet to be determined. The investigators aim to develop a novel strategy of CT guided GP localization to guide ablation in patients with atrial fibrillation. The investigators also aim to clarify the network of innervation between GP to clarify the optimal ablation strategy. This is an observational, single-center study evaluating feasibility and efficacy of CT and high frequency stimulation (HFS) guided GP mapping and ablation in patients with AF undergoing catheter ablation with pulmonary vein isolation. Patients will undergo HFS and CT guided mapping of GPs followed by allocation into one of 8 different GP ablation approaches in a non-randomized fashion.

Enrollment: 30 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Provision of signed and dated informed consent form
2. Stated willingness to comply with all study procedures and availability for the duration of the study
3. Male or female, aged 18 years
4. History of AF with plan to undergo catheter ablation

Exclusion criteria

1. Contraindication or unwillingness to undergo CT imaging or catheter ablation.
2. Pregnancy or lactation

Trial design

30 participants in 1 patient group

Atrial fibrillation ablation

Description:

All patients undergoing ablation with undergo pre-procedural CT as well as HFS mapping and ablation of GPs.

Treatment:

Device: Ganglionated Plexi mapping and ablation using Natus Cortical Stimulator and standard ablation catheters