RCT of Minimalist vs Standard Procedure for LAAC in NVAF Patients

Patients will undergo transcatheter LAAC under local anesthesia, guided by DSA and TTE, using the WATCHMAN FLX system. The release criteria (PASS: Position, Anchor, Size, Seal) will be confirmed through DSA and TTE.

Patients will undergo LAAC under general anesthesia, guided by TEE, using the WATCHMAN FLX system, following the steps outlined in the product manual.