Any idea what this means? normal sinus rhythm. possible left atrial enlargement cannot rule out anterior infarct. abnormal ekg

Could be normal.: Depends upon your clinical situation. EKG's are not very predictive if they are done without a specific purpose in mind. If you have not had any symptoms and this EKG was done as part of a "routine" then it is very likely just an interesting finding without a physical meaning. You should discuss this with the person who ordered the test.