Authors: Eugene Kim YoungJin Lim HanSeul Park SungKwon Kim YoungTae Jeon JeongWon Hwang YunSeok Lee HeePyoung Park
Publish Date: 2014/12/13
Volume: 157, Issue: 2, Pages: 257-263
Abstract
Electronic medical records of 221 patients undergoing ventriculoperitoneal shunt due to hydrocephalus were retrospectively reviewed Cerebral ventricle indices including Evans index third ventricle index cella media index and ventricular score were calculated from transverse diameters measured at various levels on preoperative brain CT scans ICP was considered as CSF opening pressure Patients were categorized into three groups communicating hydrocephalus noncommunicating hydrocephalus and normal pressure hydrocephalus NPH The noncommunicating hydrocephalus group was further divided according to the obstruction site aqueduct fourth ventricle outlet third ventricle and the foramen of Monro The primary endpoint was the extent of the correlation between cerebral ventricle indices and ICP in each hydrocephalus groupNo cerebral ventricle index correlated with ICP in patients with communicating hydrocephalus n = 113 and NPH n = 62 In the noncommunicating hydrocephalus group n = 46 only the third ventricle index revealed moderate negative correlation with ICP r = −0395 p 001 In subgroup analyses the third ventricle index showed a strong negative relationship with ICP only in patients with the third ventricle obstruction r = −0779 p 005In this study we showed that although an inverse correlation existed between ICP and the third ventricle index only in patients with noncommunicating hydrocephalus due to obstruction of the third ventricle cerebral ventricle indices based on brain CT scan were nonreliable predictors of ICP in hydrocephalic patients
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