The only information that I have is they drill a small opening in your third ventricle, it drains into your stomach. Surgery is several hours, you are discharged the next day, you spend one night in the hospital. I would recommend that you have it done with an experienced neurologist. I heard that some one had it done in Detroit but he suffered bleeding and had a stroke. Dr Vositer from Cleveland Clinic did mine! I have not any issues since the procedure. I also know of someone that had the same procedure in Atlanta, and he is doing well from the same procedure. It is a newer procedure. Best wishes to you.