What risks are associated with open heart surgery on 83 year old woman?

Some risk but low: Usually it is less risky than not having it if you need it. The risks vary with what is to be done congenital disease coronary disease valvular disease risk rises with age, obesity, diabetes poor heart function and some othe factors.

Risk: As with any procedure, there are risks. Bleeding, infection, and anesthesia complications are the most "common" risks that we talk about. There may be risk particular to that operation. Your board certified surgeon will ask you about your health. He/she may have you see another doctor, (cardiologist, internist, hematologist) to make sure that you are in the best shape for your particular surgery.