How dangerous is having a shunt put in for hydrocephalus?

Common procedure. While untoward outcomes may occur with any surgery, shunt placement is one of the most commonly performed neurosurgical procedures. The surgery entails passing a tube or catheter into the brain. Another catheter is passed under the scalp and skin and into the abdomen. Joining the two catheters is a pressure regulatory valve. This serves to divert fluid into the abdomen where it can be absorbed.