Palatal Tremor with Progressive Ataxia Secondary to A Dural Arteriovenous Fistula.
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ABSTRACT:
SUBMITTER: Peikert K
PROVIDER: S-EPMC6476593 | biostudies-literature | 2019 Apr
REPOSITORIES: biostudies-literature
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Palatal Tremor with Progressive Ataxia Secondary to A Dural Arteriovenous Fistula.
Peikert Kevin K Gerber Johannes J Winzer Simon S Schäfer Jochen J Reichmann Heinz H Hermann Andreas A
Movement disorders clinical practice 20190318 4
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Project description:BackgroundDural arteriovenous fistula (dAVF) rarely presents with a syndrome of reversible parkinsonism and rapidly progressive dementia, which has been described in 19 patients to date. However, its presenting features, pathophysiology, and response to treatment have not been reviewed.MethodsWe report the clinical course and treatment of two novel patients with this syndrome.ResultsDespite severe presentations, both patients recovered fully after fistula obliteration.ConclusionsAtypical parkinsonism with early cognitive changes and other focal neurological signs, along with features such as pulsatile tinnitus or worsening headache, should raise the possibility of dAVF. When treated, this syndrome is nearly always reversible, highlighting the importance of early diagnosis.
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Project description:Dural arteriovenous fistula (dAVF) accounts for approximately 10% of all intracranial vascular malformations. While they can be benign lesions, the presence of retrograde venous drainage and cortical venous reflux makes the natural course of these lesions aggressive high risk of haemorrhage, neurological injury and mortality. Endovascular treatment is often the first line of treatment for dAVF. Both transarterial and transvenous approaches are used to cure dAVF. The selection of treatment approach depends on the angioarchitecture of the dAVF, the location, the direction of venous flow. Surgery and, to a lesser extent, stereotactic radiosurgery are used when endovascular approaches are impossible or unsuccessful.
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Project description:Background and purposeA major challenge in spinal dural arteriovenous fistula (SDAVF) is timely diagnosis, but no specific predictive biomarkers are known.MethodsIn the discovery cohort (case, n = 8 vs. control, n = 8), we used cerebrospinal fluid (CSF) and paired plasma samples to identify differentially expressed proteins by label-free quantitative proteomics. Further bioinformatics enrichment analyses were performed to screen target proteins. Finally, it was validated by ELISA in two of the new cohorts (case, n = 17 vs. control, n = 9), and univariate analysis, simple linear regression, and receiver operator characteristic (ROC) curve analysis were performed to evaluate the diagnostic potential.ResultsIn the discovery cohort, the most overexpressed proteins were APOB and C4BPA in CSF samples of patients. The GO/KEGG enrichment analysis indicated that the upregulated proteins were mainly involved in the acute inflammatory response and complement activation. Hub-gene analysis revealed that APP might be the key protein in the molecular interaction network. In the validation cohort, C4BPA and C1QA were significantly overexpressed in the CSF of patients, averaging 3046.9 ng/ml and 2167.2 ng/ml, respectively. Simple linear regression demonstrated that levels of C1QA and C4 were positively correlated with total protein in CSF (R2 = 0.8021, p = 0.0005; R2 = 0.7447, p = 0.0013). The areas under the ROC curves of C4BPA and C1QA were 0.86 and 1.00, respectively.ConclusionsThis study was the first to identify C4BPA and C1QA as potential biomarkers for the diagnosis of SDAVF and revealed that complement pathway activation might be one of the molecular mechanisms for venous hypertension myelopathy.
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