Ablação do istmo cavo-tricuspídeo para controle do flutter atrial: estudo prospectivo e randomizado comparando eficácia e segurança de cateter irrigado com cateter de 8 mm.

Melo, Sissy Lara

doi:10.11606/T.5.2005.tde-20102005-150207

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Doctoral Thesis

DOI

https://doi.org/10.11606/T.5.2005.tde-20102005-150207

Document

Doctoral Thesis

Author

Melo, Sissy Lara (Catálogo USP)

Full name

Sissy Lara Melo

Institute/School/College

Faculdade de Medicina

Knowledge Area

Cardiology

Date of Defense

2005-02-21

Published

São Paulo, 2005

Supervisor

Sosa, Eduardo Argentino (Catálogo USP)

Committee

Sosa, Eduardo Argentino (President)
Coelho, Otavio Rizzi
Negrao, Carlos Eduardo
Pimenta, João
Zimerman, Leandro Ioschpe

Title in Portuguese

Ablação do istmo cavo-tricuspídeo para controle do flutter atrial: estudo prospectivo e randomizado comparando eficácia e segurança de cateter irrigado com cateter de 8 mm.

Keywords in Portuguese

Ablação por cateter/métodos
Ensaios controlados Aleatórios
Estudos prospectivos
Flutter atrial/terapia

Abstract in Portuguese

O cateter irrigado foi comparado com o de 8 mm para ablação com radiofrequência do istmo cavo-tricuspídeo(Ist-CT). Foram randomizados 52 pacientes portadores de flutter atrial típico para ablação com cateter irrigado(grupoI) ou com cateter de 8 mm(grupo II). O bloqueio do Ist-CT foi obtido em 51 pacientes. Não houve diferença estatística em relação aos parâmetros de aplicação de RF entre os dois grupos. A ablação do Ist-CT com cateter irrigado versus cateter de 8mm foi igualmente eficaz e segura no controle do flutter atrial típico.

Title in English

Cavotricuspid isthmus ablation for the treatment of atrial flutter: prospective randomized study comparing efficacy and safety of cooled-tip versus 8-mm-tip catheters.

Keywords in English

Atrial flutter/therapy
Catheter ablation/methods
Prospective studies
Randomized controlled trials

Abstract in English

A 4-mm cooled tip catheter was compared to an 8-mm tip catheter to cavotricuspid isthmus(CTI) ablation. This prospective study enrolled 52 patients with typical atrial flutter to ablation with a closed cooled-tip catheter(group1) or an 8-mm tip catheter. Radiofrequency(RF) applications were performed to achieve complete CTI block wich was achieved in 51 patients. No significant differences were found in the procedure parameters. CTI ablation with an irrigated tip catheter versus an 8-mm tip catheter was equally effective and satisfactorily safe for ablation of typical atrial flutter.

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Publishing Date

2005-10-20

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