D-dimer Assay for the Exclusion of Intra-atrial Thrombus Risk Before Ablation of Atrial Fibrillation

Not Applicable

Completed

Brief Summary: The purpose of this study is to determine whether D-dimer dosage allow to exclude risk of intraatrial thrombus before performing an ablation of atrial fibrillation

Recruitment & Eligibility

Inclusion Criteria

Age> 18 years.
Patients hospitalized for ablation of atrial fibrillation or symptomatic left flutter
Patient informed of the study

Exclusion Criteria

Age <18 years.
Patients under guardianship
Pregnant woman
Contraindication to transesophageal echocardiography
transesophageal echocardiography made in another center as the center of ablation
Refusal of the patient to participate in the study
Patient participating in another interventional study in which an intervention related to biomedical research is performed before the transesophageal echocardiography

Primary Outcome Measures

Name	Time	Method
Number of Patients With Atrial Thrombus Diagnosed by Transoesophageal Ultrasound	up to 48 hours before ablation

Secondary Outcome Measures

Name	Time	Method
Risk Factors	48 hours before ablation	variables related to the presence of atrial thrombus
Atrial Thrombus Exclusion (ATE) Score	48 hours before ablation	The following thromboembolic risk factors mark 1 point if present in patient: * hypertension = 1 point * cardiac insufficiency = 1 point * history of stoke = 1 point * d-dimer level \>270ng/mL = 1 point The sum corresponds to the ATE score
CHADS2 Score	48 hours before ablation	CHADS2 score (congestive heart failure=1, hypertension=1, diabetes mellitus=1, history of stroke or transient ischemic attack=1, and age under 75=1)

Locations (37): Service de cardiologie, CH de la Région d'Annecy
🇫🇷
Annecy, France
Centre Hospitalier d' Auxerre
🇫🇷
Auxerre, France
Service de cardiologie, CH Avignon
🇫🇷
Avignon, France
Clinique La Fourcade
🇫🇷
Bayonne, France
Service de cardiologie, CHU Bordeaux
🇫🇷
Bordeaux, France
Service de cardiologie, CHU Brest
🇫🇷
Brest, France
Service de cardiologie, CHU Caen
🇫🇷
Caen, France
Service de cardiologie, CHU Clermont Ferrand
🇫🇷
Clermont Ferrand, France
Service de cardiologie, AP Hôpital Henri Mondor
🇫🇷
Créteil, France
Service de cardiologie, CHU Dijon
🇫🇷
Dijon, France
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Service de cardiologie, CH de la Région d'Annecy
🇫🇷Annecy, France