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Effectiveness Study of Circumferential vs. Segmental Ablation in Paroxysmal Atrial Fibrillation

NCT02106663 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 97

Last updated 2022-05-24

No results posted yet for this study

Summary

This is a PI-initiated study that aims to evaluate the efficacy of two different methods of paroxysmal atrial fibrillation (PAF) ablation. There are currently two strategies for PAF ablation that are routinely performed by electrophysiology clinicians: (1) circumferential pulmonary vein ablation (CPVA) and (2) segmental pulmonary vein isolation (SPVI). However, it is not known if one approach is better than the other. This randomized study will evaluate and compare the efficacy of CPVA versus SPVI in subjects undergoing ablation for paroxysmal atrial fibrillation only. Subjects will have a 50/50 chance of receiving either the CPVA or SPVI ablation method.

Conditions

  • Paroxysmal Atrial Fibrillation
  • Atrial Arrhythmia

Interventions

PROCEDURE

Circumferential Pulmonary Vein Ablation

Contiguous ablation lesions will be performed to encircle the two left and right pulmonary veins (PVs) of the left atrium, guided by 3D electroanatomic mapping. After completion of the circumferential ablation, PV isolation will be confirmed by the mapping catheter, and further focal ablation performed as required until electrical PV isolation is confirmed.

PROCEDURE

Segmental Pulmonary Vein Isolation

Electrical potentials recorded in the pulmonary vein (PV) ostium using a circular mapping catheter, representing electrical connections between the left atrium and PVs will be ablated at or just proximal to the PV ostium in the PV antrum. Ablation will be performed segmentally at multiple sites guided by the mapping catheter until mapping demonstrates elimination of all PV potentials.

Sponsors & Collaborators

Principal Investigators

  • Gregory K Feld, MD · University of California, San Diego

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2012-07-31
Primary Completion
2021-12-31
Completion
2021-12-31

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02106663 on ClinicalTrials.gov