Hi my name Is Robert Lemont, me and my wife have a 15 yr old girl, she has had a shunt since she was 5mothes old. Evrything went great (no revisions) then @ eight years old she developed a psuedo cyst. and since the she has had at least 30 revisions. She has not been headache free for well over a year now. 9 out of 10 almosy every day. They say she has slit vents. Any help or advice on where to go from here would be great. Thanks we are just looking for new ideas.