NCT03919097

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

Retrospective Study to Identify Risk Factors for Atrial Fibrillation After Ablation of Atrial Flutter by Radiofrequency of the Cavotricuspid Isthmus.

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 50 (actual)
• Sponsor: José Castro · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

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.

Conditions

• Flutter

Interventions

Type	Name	Description
OTHER	Medical Data extraction	Data extraction from the patient's Medical Files

Timeline

• Start date: 2019-01-08
• Primary completion: 2019-11-20
• Completion: 2019-11-20
• First posted: 2019-04-18
• Last updated: 2022-07-19

Locations

1 site across 1 country: Belgium