Management of overdrainage in cerebrospinal fluid shunting

Abstract

Objective: To reveal the effectiveness and safety of adding a single slit valve serially to the ventriculoperitoneal shunt system in order to reverse overdrainage. Materials and Methods:The study is a retrospective review of clinical experience in a regional hospital (Tuen Mun Hospital, Hong Kong). A series of 10 cases are reported. All cases showed evidence of cerebrospinal fluid overdrainage after a ventriculoperitoneal shunt procedure. The advantages and disadvantages of other treatment options are also reviewed.

Long‐term evaluation of a new ventriculoperitoneal shunt valve system in a dog

“…Overdrainage may occur in catheters without a valve system. The absence of a control valve immediately after the proximal catheter, leads to an excessive and abrupt reduction of CSF, causing headache, vomiting, subdural hematoma, proximal obstruction, and changes in vision 12,13 . In its final evaluation, 20 months after surgery, the dog did not demonstrate any sign of overdrainage, and with continued phenobarbital prescription there were no further seizures.…”