Bellmann B, et al. - Authors assessed the incidence of long-term magnetic resonance imaging (MRI)-detected brain lesions as well as potential changes of neurocognitive function after percutaneous left atrial appendage closure (LAAC) for stroke prevention. They performed a brain MRI at 3 T within 24 hr before and after LAAC. While after percutaneous LAAC, new MRI-detected brain lesions were observed commonly, in 71% of the patients ABLs were no longer detectable at the 3-month follow-up. After LAAC and at the three-month follow-up, there were no significant changes in neurocognitive function.