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This section covers LAA occlusion devices and examines the guideline recommendations on their use
AtriClip™, a LAA occlusion device, was approved in the US in 2010 for use in patients who are undergoing open heart surgery and also have AF or a strong risk of developing AF. The phase II trial, EXCLUDE, met the study endpoints for both safety (including bleeding) and efficacy (i.e. the ability of the device to cause complete occlusion of the LAA).
A percutaneous LAA occlusion device, WATCHMAN™, was studied in the PROTECT AF trial, which assessed whether the device was non-inferior to warfarin for the prevention of stroke, systemic embolism, cardiovascular or unexplained death in patients with NVAF and a CHADS2 score of ≥1.1 It is approved in both Europe and the US.2,3
According to the most recent updated ESC 2020 and AHA/ACC/HRS 2019 guidelines, the use of percutaneous LAA occlusion devices may be considered in patients with a high stroke risk who have contraindications for long-term oral anticoagulation.6,7