Percutaneous transcatheter mechanical occlusion of the left atrial appendage (LAA) is a nonpharmacological treatment option for stroke prevention in patients with atrial fibrillation who cannot receive anticoagulant drugs. In this Review, Cheuk-Man Yu and colleagues present the rationale for LAA occlusion in patients with AF, the available occlusion devices and the clinical evidence for their use, and discuss the role of imaging techniques in device implantation and the management of procedural complications.
- Cheuk-Man Yu
- Ahmed A. Khattab
- Bernhard Meier