When do you use anticoagulation over antiplatelet therapy for secondary stroke prevention in patients with LV injury or dysfunction?

First, I will observe that the recent work is a cohort study, not an RCT< and I would be careful about concluding that anticoagulation is the best approach. We have had prior trials, e.g., WARCEF and the related ESUS trials (NAVIGATE and RESPECT), and others that have looked at possible cardioemboli...