Overdrainage → tissue occluding the orifices of the proximal shunt apparatus
As pressure increases the occluding tissue diesengages allowing drainage to resume
Leads to cyclic increased ICP complaints that worsen when patient stands
Newer valve devices with antisiphon features make this less common
Also known as "slit ventricle syndrome"
As pressure increases the occluding tissue diesengages allowing drainage to resume
Leads to cyclic increased ICP complaints that worsen when patient stands
Newer valve devices with antisiphon features make this less common
Ventriculoperitoneal shunt overdrainage
Ventriculoperitoneal shunt obstruction
Ventriculoperitoneal shunt overdrainage 
Ventriculoperitoneal shunt infection
Ventriculoperitoneal shunt complications
Ventriculoperitoneal shunt mechanical failure
Brain herniation syndromes
Epidural hemorrhage