Atrial fibrillation
Conditions
Interventions
Low risk group:Anticoagulant therapy will be continued for 3 months after radiofrequency ablation
High risk group:Anticoagulant therapy will be continued for 1 year after radiofrequency ablation
Sponsors
Qilu Hospital of Shandong University
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1. Aged >= 18 years; 2. Symptomatic nonvalvular atrial fibrillation (NVAF) refractory to antiarrhythmic drugs; 3. One or more CHA2DS2-VASc risk factors; 4. Patients undergoing radiofrequency ablation under the guidance of intracardiac echocardiography; 5. Agreed to sign the informed consent form for this study.
Exclusion criteria
Exclusion criteria: 1. Left atrial thrombus and additional ablation or CFAE ablation strategy; 2. Patients with stroke in recent 3 months; 3. Patients with severe heart failure (NYHA IV).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Left atrial diastolic volume;Left atrial systolic volume;Diastolic volume of left atrial appendage;Systolic volume of left atrial appendage;Left atrial appendage morphology;Left atrial morphology;Left atrial anteroposterior diameter;Number of left atrial lobes;Blood flow velocity at the mouth of left atrial appendage;Stress and strain of left atrium;Left atrial thrombus; | — |
Countries
China
Contacts
Public ContactZhong Jingquan
Qilu Hospital of Shandong University
Outcome results
None listed