No 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.