What is the incidence of shunt complications following surgery for normal pressure hydrocephalus (NPH)?

Updated: Oct 19, 2018
  • Author: Michael J Schneck, MD, MBA; Chief Editor: Selim R Benbadis, MD  more...
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Answer

The incidence of shunt complications is estimated in 30-40% of patients. [21] These include anesthetic complications, intracranial hemorrhage from placement of the ventricular catheter, infection, CSF hypotensive headaches, subdural hematomas, shunt occlusion, and catheter breakage. Rapid reduction in ventricular size following the shunt favors complications such as subdural hematoma, which may occur in 2-17% of patients. [21] Dual-switch valves and programmable valves may reduce the incidence of this complication. [28]


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