Atrial fibrillation
Conditions
Interventions
Small size group:None
Non-small size group:None
Sponsors
Gansu Provincial Hospital
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age >=18 years; 2. Documented atrial fibrillation confirmed by electrocardiogram within 6 months before enrollment (confirmed by 12-lead ECG, Holter monitoring, or device diagnosis, in accordance with the established AF cohort study methodology); 3. Availability of baseline echocardiographic images of sufficient quality to allow quantitative left ventricular assessment; 4. Ability to undergo structured longitudinal AF burden monitoring; 5. Provision of written informed consent.
Exclusion criteria
Exclusion criteria: 1. Structural cardiomyopathies that significantly affect ventricular morphology, including hypertrophic cardiomyopathy, infiltrative cardiomyopathy, or congenital heart disease with hemodynamic significance; 2. History of acute coronary syndrome, cardiac surgery, or decompensated heart failure within 3 months prior to enrollment; 3. Permanent ventricular pacing dependence or cardiac resynchronization therapy preventing accurate assessment of atrial rhythm; 4. Non-cardiac conditions resulting in an expected life expectancy of less than 1 year or inability to complete follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| left ventricular internal dimension at end-diastole (LVIDd);left ventricular end-diastolic and end-systolic volumes indexed to body surface area;left ventricular ejection fraction;left atrial diameter;left atrial volume index;haemoglobin concentration;serum creatinine;estimated glomerular filtration rate;natriuretic peptides;AF burden measurement; | — |
Countries
China
Contacts
Public ContactPing Xie
Gansu Provincial Hospital
Outcome results
None listed