Operation without bleeding adverse effects.

In order to help the surgeon operate without bleeding adverse effects: Postpone warfarin until INR<1.5 or (if on NOAC) Omit NOAC 2 days before and after surgery.

Despite an uneventful surgery, the doctor is informed 1 month later that Mr CJ was admitted to hospital with a case of serious ischemic stroke.

Maybe interrupting OAC was not the right decision in a patient with high risk for stroke…