Identification of Risk Factors for Atrial Fibrillation After Ablation of an Atrial Flutter by Radiofrequency of the Cavotricuspid Isthmus.

José Castro

Status: Completed

Conditions: Flutter

Treatments: Other: Medical Data extraction

Study type: Observational

Funder types: Other

Identifiers

NCT03919097

CHUB-Fayad

Details and patient eligibility

About

Atrial flutter is a common condition that is effectively treated by ablation using radiofrequency. Due to its feasibility, effectiveness and low procedural risk, radiofrequency ablation is a first-line treatment of atrial flutter.

Several studies have been published concerning the factors associated with the occurrence of atrial fibrillation during or after flutter ablation, in patients with and without clinical history of atrial fibrillation. 26 to 46% of patients are likely to develop it, according to ECG or Holter diagnoses. The figure rises to more than 50% with a diagnosis with an implantable loop recorder.

In patients without a prior history of atrial fibrillation before ablation, anticoagulants are routinely administered 4-6 weeks after flutter removal by most cardiologists.

Although there are no specific guidelines for anticoagulation after flutter ablation, it is currently recommended to treat the patient as for atrial fibrillation. It is therefore crucial to identify in advance patients at high risk of atrial fibrillation after flutter ablation, in order to assess the appropriateness of maintaining oral anticoagulant therapy.

The objectives of this study are:

• to evaluate the frequency and identify the factors predicting the occurrence of atrial fibrillation after flutter ablation
• to determine the risk of a stroke occurring in patients with atrial fibrillation after flutter ablation.

The database consists in patients of the CHU Brugmann Hospital treated between 1996 and 2018.

Enrollment: 50 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

Patients treated at the CHU Brugmann Hospital for flutter ablation by radiofrequency between 1996 and 2018.

Exclusion criteria

None

Trial design

50 participants in 5 patient groups

Control

Description:

No atrial arrhythmia post-ablation of a flutter by radiofrequency of the isthmus of the cavotricuspid valva.

Treatment:

Other: Medical Data extraction

Atrial fibrillation post ablation

Description:

Atrial arrhythmia (Atrial Fibrillation) post-ablation of a flutter by radiofrequency of the isthmus of the cavotricuspid valva.

Treatment:

Other: Medical Data extraction

Flutter recidive

Description:

Recidive of the flutter after ablation.

Treatment:

Other: Medical Data extraction

Atrial Fibrillation antecedents

Description:

Patients with atrial fibrillation after flutter ablation, with previous antecedents of atrial fibrillation.

Treatment:

Other: Medical Data extraction

No Atrial Fibrillation antecedents

Description:

Patients with atrial fibrillation after flutter ablation, without antecedents of atrial fibrillation.

Treatment:

Other: Medical Data extraction