Evaluation of Thermocool SF Catheter on the Common Cavo-tricuspid Isthmus Dependent Atrial Flutter Ablation

NCT ID: NCT02698592

Last Updated: 2016-03-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-01-31

Study Completion Date

2016-12-31

Brief Summary

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The purpose of this study is to determine whether the Thermocool SF ® system is at least as effective and safe as regular 8mm catheters and irrigated tip catheters in the treatment of cavo-tricuspid isthmus dependent atrial flutter.

Detailed Description

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The catheter of Biosense Webster Thermocool SF® is characterized by a porous, thin-walled tip allowing a uniform cooling of the catheter tip and so, achieving increased efficiency in cooling. This allows to reduce the flow of irrigation and power output while achieving similar tissue temperatures as the conventional irrigated catheters. There is evidence of greater efficiency of Thermocool SF® catheter in causing tissue damage, but there are no clinical studies on the specific treatment of common atrial flutter.

Investigators hypothesize that the Thermocool SF® system is at least as effective and safe in the treatment of cavo-tricuspid isthmus dependent atrial flutter as conventional and 8 mm irrigated tip catheters.

150 patients with common atrial flutter were randomized to 3 groups of 50 patients and each group underwent ablation catheter ablation with CelsiusTMDS® 8 mm, 3.5 mm irrigated tip Thermocool® or Thermocool® SF respectively. After the procedure, patients are being followed by clinical reviews, electrocardiograms at the 3rd, 6th and 12th months, 24h ECG-Holter examination at the first and 6th month and monthly phone consultation. Rate of recurrence and presence of other supraventricular arrhythmias are being recorded during follow-up.

Conditions

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Atrial Flutter.

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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CelsiusTMDS® 8 mm catheter

50 patients underwent ablation with CelsiusTMDS® 8 mm catheter.

Group Type ACTIVE_COMPARATOR

CelsiusTMDS® 8 mm catheter

Intervention Type DEVICE

After demonstrating cavo-tricuspidal isthmic dependant atrial flutter with a duodecapolar catheter, ablation with continuous tissue lesion will be performed with CelsiusTMDS® 8 mm catheter, until complete isthmic block is achieved.

Thermocool® 3.5 mm irrigated catheter

50 patients underwent ablation with Thermocool® 3.5 mm catheter of irrigated tip.

Group Type ACTIVE_COMPARATOR

Thermocool® 3.5 mm catheter of irrigated tip

Intervention Type DEVICE

After demonstrating cavo-tricuspidal isthmic dependant atrial flutter with a duodecapolar catheter, ablation with continuous tissue lesion will be performed with Thermocool® 3.5 mm catheter of irrigated tip, until complete isthmic block is achieved.

Thermocool® SF catheter

50 patients underwent ablation with Thermocool® SF catheter.

Group Type EXPERIMENTAL

Thermocool® SF catheter

Intervention Type DEVICE

After demonstrating cavo-tricuspidal isthmic dependant atrial flutter with a duodecapolar catheter, ablation with continuous tissue lesion will be performed with Thermocool® SF catheter, until complete isthmic block is achieved.

Interventions

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CelsiusTMDS® 8 mm catheter

After demonstrating cavo-tricuspidal isthmic dependant atrial flutter with a duodecapolar catheter, ablation with continuous tissue lesion will be performed with CelsiusTMDS® 8 mm catheter, until complete isthmic block is achieved.

Intervention Type DEVICE

Thermocool® 3.5 mm catheter of irrigated tip

After demonstrating cavo-tricuspidal isthmic dependant atrial flutter with a duodecapolar catheter, ablation with continuous tissue lesion will be performed with Thermocool® 3.5 mm catheter of irrigated tip, until complete isthmic block is achieved.

Intervention Type DEVICE

Thermocool® SF catheter

After demonstrating cavo-tricuspidal isthmic dependant atrial flutter with a duodecapolar catheter, ablation with continuous tissue lesion will be performed with Thermocool® SF catheter, until complete isthmic block is achieved.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patients with symptomatic common atrial flutter.
* Electrocardiographic documentation of common atrial flutter.

Exclusion Criteria

* Refusal to give consent.
* Life expectancy less than 6 months.
* Contraindication for ablation.
* Previous cavo-tricuspid isthmus ablation.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Johnson & Johnson

INDUSTRY

Sponsor Role collaborator

Hospital Universitario Central de Asturias

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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José Manuel Rubín López, PhD

Role: PRINCIPAL_INVESTIGATOR

Hospital Universitario Central de Asturias

Locations

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Hospital Universitario Central de Asturias

Oviedo, Principality of Asturias, Spain

Site Status

Countries

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Spain

References

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Tsai CF, Tai CT, Yu WC, Chen YJ, Hsieh MH, Chiang CE, Ding YA, Chang MS, Chen SA. Is 8-mm more effective than 4-mm tip electrode catheter for ablation of typical atrial flutter? Circulation. 1999 Aug 17;100(7):768-71. doi: 10.1161/01.cir.100.7.768.

Reference Type BACKGROUND
PMID: 10449701 (View on PubMed)

Jais P, Shah DC, Haissaguerre M, Hocini M, Garrigue S, Le Metayer P, Clementy J. Prospective randomized comparison of irrigated-tip versus conventional-tip catheters for ablation of common flutter. Circulation. 2000 Feb 22;101(7):772-6. doi: 10.1161/01.cir.101.7.772.

Reference Type BACKGROUND
PMID: 10683351 (View on PubMed)

Schreieck J, Zrenner B, Kumpmann J, Ndrepepa G, Schneider MA, Deisenhofer I, Schmitt C. Prospective randomized comparison of closed cooled-tip versus 8-mm-tip catheters for radiofrequency ablation of typical atrial flutter. J Cardiovasc Electrophysiol. 2002 Oct;13(10):980-5. doi: 10.1046/j.1540-8167.2002.00980.x.

Reference Type BACKGROUND
PMID: 12435182 (View on PubMed)

Scavee C, Georger F, Jamart J, Mancini I, Collet B, Blommaert D, De Roy L. Is a cooled tip catheter the solution for the ablation of the cavotricuspid isthmus? Pacing Clin Electrophysiol. 2003 Jan;26(1P2):328-31. doi: 10.1046/j.1460-9592.2003.00043.x.

Reference Type BACKGROUND
PMID: 12687839 (View on PubMed)

Other Identifiers

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38/2012

Identifier Type: -

Identifier Source: org_study_id

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