Occurrence
50% within first 2 weeks of placement/manipulation
70% within 2 months of placement/manipulation
80% within 6 months of placement/manipulation
10% present >1 year after surgery
50% within first 2 weeks of placement/manipulation
70% within 2 months of placement/manipulation
80% within 6 months of placement/manipulation
10% present >1 year after surgery
External<unk> 
Involve the subcutaneous tract around the shunt
Internal<unk> 
Involves the shunt and CSF contained within the shunt
Involve the subcutaneous tract around the shunt
Involves the shunt and CSF contained within the shunt
50% of cases caused by S. epidermidis
Also caused by S. aureus, Gram-negatives, anaerobes
Ventriculoperitoneal shunt infection
Ventriculoperitoneal shunt obstruction
Ventriculoperitoneal shunt complications
Ventriculoperitoneal shunt overdrainage 
Ventriculoperitoneal shunt overdrainage
Ventriculoperitoneal shunt mechanical failure
Brain herniation syndromes
Neoplastic meningitis