title: Programmable valve shunts: are they really better?
abstract: Programmable valve shunts allows selection of opening pressure of shunt valve.     In the presented article, a unique complication pertaining to programmable     shunts has been discussed. A 5-year-old boy who had tectal plate low grade     glioma with obstructive hydrocephalus was managed with Codman programmable     ventriculoperitoneal shunt. There was a spontaneous change in the opening     pressure of the shunt valve leading to shunt malfunction. Routinely used     household appliances produce a magnetic field strong enough to cause change in     the setting of shunt valve pressure and may lead to valve malfunction. Other     causes of programmable valve malfunction also discussed.
authors.affiliation: Paras Hospital, Department of Neurosurgery, Gurgaon, Haryana, India. rashim_kat@yahoo.com
authors.forename: Rashim
authors.initials: R
authors.lastname: Kataria
authors.forename: Vimal
authors.initials: V
authors.lastname: Kumar
authors.forename: Veer Singh
authors.initials: VS
authors.lastname: Mehta
mesh_terms: D002675:Child, Preschool; D004574:Electromagnetic Fields / Q000009:adverse effects*; D004867:Equipment Design; D004868:Equipment Failure; D006801:Humans; D006849:Hydrocephalus / Q000601:surgery*; D008297:Male; D012984:Software; D017287:Ventriculoperitoneal Shunt / Q000009:adverse effects* / Q000295:instrumentation*