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  • Title: Depression and generalized anxiety symptoms in idiopathic intracranial hypertension: Prevalence, under-reporting and effect on visual outcome.
    Author: Donaldson L, Dezard V, Chen M, Margolin E.
    Journal: J Neurol Sci; 2022 Mar 15; 434():120120. PubMed ID: 34992042.
    Abstract:
    BACKGROUND: Patients with idiopathic intracranial hypertension (IIH) have been reported to have high prevalence of co-existent mood disorders. We investigated the frequency of symptoms of depression and anxiety in a large cohort of patients with IIH without a known psychiatric diagnosis and compared it with the age- and gender-matched control group. We also studied whether the presence and severity of co-existing mood disorder was related to visual outcome in patients with IIH. METHODS: The Patient Health Questionnaire-8 (PHQ-8) for depression symptoms and the Generalized Anxiety Disorder-7 (GAD-7) questionnaire for symptoms of generalized anxiety were administered via telephone survey to 100 patients with known diagnosis of IIH and 100 control subjects (matched for age and gender) who did not report a history of anxiety or depression during their prior in-person consultations. All participants were also asked whether they had ever been previously diagnosed with a mood disorder during this telephone assessment. Administered questionnaire results were correlated with final visual outcome in IIH cohort. RESULTS: 34 IIH patients and 36 controls self-reported anxiety and/or depression when specifically asked if they had ever been diagnosed with these conditions although this was not reported on clinic intake questionnaires. Mean PHQ-8 depression scale score was 6.5 ± 0.6 in control group and 7.6 ± 0.6 in IIH group (p = 0.18). Mean GAD-7 score was 6.3 ± 0.5 in control group and 7.7 ± 0.6 in the IIH group (p = 0.06). In multivariable regression, scores on both scales were correlated with higher body mass index (BMI), younger age and presence of headache, but not with IIH diagnosis. In the IIH cohort, visual outcomes were not related to GAD-7 or PHQ-8 scores but were predicted by mean deviation on visual fields at presentation. CONCLUSIONS: Pre-existing diagnosis of anxiety and depression are highly under-reported. Symptoms of anxiety and depression are very common in young women with elevated BMI and headache, however, there was no statistical difference in frequency of these symptoms between IIH and control groups. Presence and severity of mood disorder symptoms did not correlate with the final visual outcome in patients with IIH.
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