Left atrial appendage (LAA) occlusion devices provided an acceptable and valid alternative to anticoagulation among patients with atrial fibrillation who carry high bleeding risk. Watchman device is non-inferior to oral anticoagulation to prevent cerebrovascular accidents. The presence of a longer distal portion of the older generation Watchman led to exclusion of patients with prohibitive anatomy of the LAA such as chicken-wing morphology or shallow LAA. Watchman FLX provides a wider range of sizes and can be implanted with complex anatomy or shallow LAA. In the case series, we discuss 3 patients with challenging LAA anatomy that underwent successful Watchman FLX implantation.
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