P.028 Surgical Treatment for Idiopathic Intracranial Hypertension – Strategy for the Better Management

Abstract

Background: Idiopathic intracranial hypertension (IIH) is a condition of increased intracranial pressure in the absence of a space-occupying lesion. The goal of this study is to investigate which factors may influence outcomes in order to improve surgical strategy. We hypothesized diabetes, hypertension, smoking, and obesity influence patients prognosis. Methods: This retrospective chart review included patients diagnosed with IIH who underwent surgical intervention. All patients receiving surgery between 2008 and 2018 were included, and divided into 2 cohorts. Cohort 1 representing favorable course and cohort 2 representing unfavorable course. Favorable course was defined as requiring single surgery for management. Unfavorable course required multiple surgical revisions. Results: Overall, 35/48 (73%) comprised the favorable group. Thirteen patients (27%) comprised the unfavorable group. Of the unfavorable group, 54% had LP shunts, with the remaining receiving VP shunts. There was no association between type of shunt and outcome. Common issues the unfavorable group encountered were persisting symptoms, infections, obstruction of shunt and replacement of shunt. Smoking and frequent follow-up were associated with unfavorable course. Gender, BMI, age, comorbidities and shunt type were not associated with outcome. Conclusions: We found smoking and patient follow-up had a significant association with unfavorable outcome. Other factors had no association with patient outcome.