Would you recommend closure, anticoagulation
, or nothing at this time?
Unfortuately, I don't think there strick data driven guidelines
that deal with that specific question. You are probably aware that even within the subspecialty of cardiology, there are sub-sub specialties like intervention, imaging, electrophysiology and adult congenital, among others. If I saw a patient like your self in clinic, I would refer them to a sub sub specialist to help with that decision.