Usefulness of Markers to Predict Recurrence of Atrial Fib... | NCT00315068

Studies
Usefulness of Markers to Predict Recurrence of Atrial Fibrillation After Radiofrequency Catheter Ablation

NCT00315068

Sponsor

University Hospital, Geneva

Status

Unknown status

Last Update Posted

Apr 20, 2007Estimated

Enrollment

180

Phase

Not provided

Conditions

Atrial Fibrillation

Interventions

Not provided

Countries

Switzerland

Protocol Section

Identification Module Status Module Sponsor/Collaborators Module Oversight Module Description Module Conditions Module Design Module Arms/Interventions Module Outcomes Module Eligibility Module Contacts/Locations Module References Module IPD Sharing Statement Module

Results Section

Participant Flow Module Baseline Characteristics Module Outcome Measures Module Adverse Events Module More Info Module

Annotation Section

Annotation Module

Document Section

Large Document Module

Derived Section

Miscellaneous Info Module Condition Browse Module Intervention Browse Module

Protocol Section

Identification Module

NCT ID

Results Section

No data available

No data is available for this block.

Annotation Section

No data available

No data is available for this block.

Document Section

No data available

No data is available for this block.

Derived Section

Miscellaneous Info Module

Version Holder

Status Module

Record Verification Date

Apr 2007

Overall Recruitment Status or Expanded Access Status

Unknown status

Last Known Status

Active, not recruiting

Delayed Posting

Not provided

Why Stopped

Not provided

Expanded Access Info

Start Date

Apr 2004

Primary Completion Date

Not provided

Completion Date

Aug 2007Estimated

First Submitted Date

Apr 13, 2006

First Submission Date that Met QC Criteria

Apr 14, 2006

First Posted Date

Apr 17, 2006Estimated

Results Waived

Not provided

Results First Submitted Date

Not provided

Results First Submitted that Met QC Criteria

Not provided

Results First Posted Date

Not provided

Certification/Extension (aka Delayed Results) First Submitted Date

Not provided

Certification/Extension First Submitted that Passed QC Review

Not provided

Certification/Extension First Posted Date

Not provided

Last Update Submitted Date

Apr 19, 2007

Last Update Posted Date

Apr 20, 2007Estimated

Description Module

Brief Summary

Catheter ablation using radiofrequency is a new therapeutic tool to treat atrial fibrillation with a higher success rate than medical therapy (80% versus less than 50% respectively). Because of the length of the intervention and of the risk of complications of the procedure, it would be important to determine success rate before the intervention. The information gained from this study will in all probability improve our estimation of the chances of a successful intervention and may enable us to take necessary therapeutic measures in case of an elevated risk of recurrence.

Multiple studies suggest that the 2 markers in this study could provide information of this nature, however, their utility in the radiofrequency catheter ablation treatment of atrial fibrillation has never been demonstrated.

Detailed Description

Catheter ablation of atrial fibrillation is a recent therapeutic tool to treat atrial fibrillation. The success rate of eliminating atrial fibrillation by radiofrequency catheter ablation is 80 %, after one or sometimes two procedures, against 20-50 % with drug treatment.

This intervention may be complicated by : hematoma at the puncture site - 1 % incidence; thromboembolic events < 1 % incidence; cardiac perforation with tamponade < 1 %, pulmonary vein stenosis 2 % incidence.

The aim of this study is to evaluate blood tests of biological products (NT-proBNP and CRP) as markers of prognosis and success after radiofrequency catheter ablation for atrial fibrillation.

Previous studies demonstrated the prognostic value of NT-proBNP and CRP in the recurrence of atrial fibrillation after electrical cardioversion. However the prognostic value of these biomarkers was never demonstrated in the setting of radiofrequency catheter ablation of atrial fibrillation.

This is an observation study including 180 patients with the indication of catheter ablation for atrial fibrillation. Confounding factors of increased NT-proBNP will be assessed with echocardiographic imaging.

Design Module

Study Type

Observational

Number of References to an Expanded Access Study

Not provided

Expanded Access Types

Not provided

Patient Registry

Not provided

Target Follow-Up Duration

Not provided

Phases

Not provided

Interventional Study Design

Allocation

Not provided

Intervention Model

Biospecimen

No data available

No data is available for this block.

Enrollment

180

Eligibility Module

Eligibility Criteria

Inclusion Criteria:

atrial fibrillation
indication for catheter ablation of atrial fibrillation

Exclusion Criteria:

significant valvulopathy
previous catheter ablation for atrial fibrillation or atrial flutter
left ventricular ejection fraction < 30%
Severe heart failure (NYHA IV)
Severe enlargement of left atrium (> 55mm)

Accepts Healthy Volunteers

Sex

All

Sex/Gender Based

Not provided

Sex/Gender Description

Not provided

Minimum Age

18 Years

Maximum Age

80 Years

Standard Ages

AdultOlder Adult

Study Population

Not provided

Sampling Method

Not provided

Contacts/Locations Module

Central Contacts

Not provided

Overall Officials

Name	Affiliation	Role
Pierre-Frederic Keller, MD	Cardiology Division University Hospital	Principal Investigator

Locations

Facility	Status	City	State	ZIP	Country	Contacts
Cardiology Division University Hospital		Geneva	Canton of Geneva	1211	Switzerland

Condition Browse Module

MeSH Terms

ID	Term
D001281	Atrial Fibrillation
D001145	Arrhythmias, Cardiac

Ancestor Terms

ID	Term
D006331	Heart Diseases
D002318	Cardiovascular Diseases
D010335	Pathologic Processes
D013568	Pathological Conditions, Signs and Symptoms

Browse Leaves

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Browse Branches

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