I have read of such instances and yes, the continuation or resumption of DOAC (direct-acting oral anti-coagulants) is indicated. However, your electrophysiologist/cardiologist would be the one to ask these questions as they know you best, and know your overall risk for stroke.
I can't answer your question about going in again and attempting to close it off again or redoing the entire affair. I would think it unlikely. Again, please consult your health care providers about this.