Damian E Berezovsky1, Beau B Bruce2, Caroline Vasseneix1, Jason H Peragallo3, Nancy J Newman4, Valérie Biousse5. 1. Department of Ophthalmology, Emory University School of Medicine, United States. 2. Department of Ophthalmology, Emory University School of Medicine, United States; Department of Neurology, Emory University School of Medicine, United States; Department of Epidemiology, Emory University School of Medicine, United States. 3. Department of Ophthalmology, Emory University School of Medicine, United States; Department of Pediatrics, Emory University School of Medicine, United States. 4. Department of Ophthalmology, Emory University School of Medicine, United States; Department of Neurology, Emory University School of Medicine, United States; Department of Neurological Surgery, Emory University School of Medicine, United States. 5. Department of Ophthalmology, Emory University School of Medicine, United States; Department of Neurology, Emory University School of Medicine, United States. Electronic address: vbiouss@emory.edu.
Abstract
OBJECTIVE: To evaluate the relationship between CSF total protein concentration (CSF protein) and CSF opening pressure in idiopathic intracranial hypertension (IIH), and to explore the association of age, gender, race, BMI, and Humphrey visual field mean deviation (HVF MD) with CSF total protein. METHODS: The medical records of all IIH patients seen between 1989 and 2016 at one institution were systematically reviewed for demographics, CSF opening pressure, CSF contents, and HVF MD (at initial evaluation and most recent follow-up). Linear regression of CSF protein on CSF opening pressure was performed also considering BMI, age, gender, race, HVF MD, and year of lumbar puncture. RESULTS: We included 266 IIH patients (13 pre-pubertal children, 35 post-pubertal children, 218 adults). There was a negative linear association between CSF opening pressure and CSF protein: CSF protein decreased by 0.18mg/dL for each 1cm H2O increase in CSF opening pressure (p<0.001). After controlling for CSF opening pressure, mean CSF protein was 4.1mg/dL higher in white patients than in black patients (p<0.001). Multivariable analysis found that CSF opening pressure (p=0.007), white race (p<0.001), and HVF MD (most recent follow-up, worst eye, p=0.05) remained independently associated with CSF protein controlling for year of lumbar puncture and age. CONCLUSIONS: There was a negative association between CSF protein and CSF opening pressure. After controlling for CSF opening pressure, CSF protein was higher in white patients and unaffected by age, gender, or BMI. Our findings help clarify inconsistent results of prior studies, but do not really help clarify IIH pathophysiology.
OBJECTIVE: To evaluate the relationship between CSF total protein concentration (CSF protein) and CSF opening pressure in idiopathic intracranial hypertension (IIH), and to explore the association of age, gender, race, BMI, and Humphrey visual field mean deviation (HVF MD) with CSF total protein. METHODS: The medical records of all IIH patients seen between 1989 and 2016 at one institution were systematically reviewed for demographics, CSF opening pressure, CSF contents, and HVF MD (at initial evaluation and most recent follow-up). Linear regression of CSF protein on CSF opening pressure was performed also considering BMI, age, gender, race, HVF MD, and year of lumbar puncture. RESULTS: We included 266 IIH patients (13 pre-pubertal children, 35 post-pubertal children, 218 adults). There was a negative linear association between CSF opening pressure and CSF protein: CSF protein decreased by 0.18mg/dL for each 1cm H2O increase in CSF opening pressure (p<0.001). After controlling for CSF opening pressure, mean CSF protein was 4.1mg/dL higher in white patients than in black patients (p<0.001). Multivariable analysis found that CSF opening pressure (p=0.007), white race (p<0.001), and HVF MD (most recent follow-up, worst eye, p=0.05) remained independently associated with CSF protein controlling for year of lumbar puncture and age. CONCLUSIONS: There was a negative association between CSF protein and CSF opening pressure. After controlling for CSF opening pressure, CSF protein was higher in white patients and unaffected by age, gender, or BMI. Our findings help clarify inconsistent results of prior studies, but do not really help clarify IIH pathophysiology.
Authors: Claudia D Wurster; Jan C Koch; Isabell Cordts; Jens Dreyhaupt; Markus Otto; Zeljko Uzelac; Simon Witzel; Benedikt Winter; Tugrul Kocak; Michael Schocke; Patrick Weydt; Kurt Wollinsky; Albert C Ludolph; Marcus Deschauer; Paul Lingor; Hayrettin Tumani; Andreas Hermann; René Günther Journal: Front Neurol Date: 2019-11-07 Impact factor: 4.003