This clinical study is a prospective, multi-center, non-interventional study designed to investigate the safety and effectiveness of percutaneous LAA appendage closure by using LAmbreâ„¢ Left Atrial Appendage Occluder System. 579 patients with valvular AF complicated with previous AF-related embolic events (including ischemic stroke, TIA and systemic embolism) were enrolled at about 20 study sites nationwide. The baseline data, operation process and relevant follow-up information of subjects were recorded at 7 months after operation or before discharge and at 1, 3, 6, 12 and 24 months after operation.
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Incidence of new ischemic stroke, systemic embolism, and cardiac death 12 months after operation
Timeframe: 12 months
Incidence of major bleeding events (intracranial or gastrointestinal, or any bleeding requiring transfusion of ≥ 2 units of red blood cells) at 12 months after operation
Timeframe: 12 months